he mmc 9 manual 05 may 08

Honeywell Enraf Copyright 05/05/2008 Page 1 of 64

Master Meter Counter M M C - 9

Operating Manual

Honeywell Enraf UK, Ltd. Honeywell Enraf USA, Inc. 6 Pennant Park, Standard Way 2000 Northfield Court Fareham, Hampshire, England PO16 8XU Roswell, GA USA 30076-4908 Phone (01329) 825823 Fax (01329) 825824 Phone (770) 475-1900 Fax (770) 475-1717


Table of Contents Introduction to Master Meter Proving ( a description of the technique ) 4

The Volumetric Prover System 4 The Pipe Prover System 4 Small Volume Provers 5 Master Meter Provers 5 Effects of Temperature 6 Effects of Pressure on Volumetric Provers 7 Crude Oil/Asphalt/Heavy Fuel Oil Proving 8

MMC-9 Control Panel Layout 9 Control Descriptions 10 - 14 Programming & Setup

Configuring The MMC-9 14 Parameter Table 15 - 16 Parameter Descriptions 17 - 24 Changing Parameter Values 25

Self Testing the MMC-9 26

Self Test 1 26-27 Self Test 2 27-28

Data Logging 29

Turning on / off logging 29 Viewing Logged Data 30 Summary Data Table Contents 30 Proving Run Data Table Contents 31 Mater Meter Correction Factor Data Table Contents 31

Calibrating the Master Meter with a Volumetric Can 32

Creating A Master Meter Correction Factor Table 32 Mechanical Setup 33 Electrical Setup 33 Making the initial wet down run 33 Making Correction Factor Runs 35-37

Product Meter Proving 38

Totalizer Mode Description 38 Gated Mode Description 38 Correction Factors 38 Consecutive Runs 39 Totalizer Mode Proving 40 - 41 Gated Mode Proving 42 - 43 How To Use The Meter Proving Data 44 - 45


Table Of Contents (continued) Exporting Data 46

File Format 46 Hardware / Software Requirements 46 Setting up HyperTerminal For Use With The MMC-9 47 Selecting What To Print 48-49

Importing Data Into A Spreadsheet 50 Tasks 51

Task Table 51 Task Descriptions 51

Appendix

Screen Maps 52 - 54 Formulas used 55 Data Table Structure 56 Temperature Probe Calibration 57 Drawings

Proving The Master Meter 58 Proving The Rack Meter 59

Definition of Terms 60 Connection Diagrams

Master Meter Connector (GC-1000) 61 Meter Under Test (GCT-1) 61 Serial Data Port (RS-232 COMM ) 62 Serial Data Cable (MMC-9 to PC) 62

Specifications 63


INTRODUCTION TO MASTER METER PROVING This document examines the various methods used to prove transport loading meters, discusses the advantages and disadvantages of the different methods, and in particular explores the use of the Master Meter System as developed by Honeywell Enraf. Volumetric Prover System When meters became recognized as an effective measurement device at transport loading terminals, the most popular method for proving them was the volumetric prover can. This method was adopted by most of the Weights and Measures departments in the various states. Since most transport loading terminals were originally designed for top loading; the prover can method closely approximated the actual loading process. Advantages This method of proving meters is relatively straight forward and easily understood The prover cans were inexpensive and reliable Size varied from 500 to 750 gallons and only increased as loading speed increased Most of the various Weights and Measures departments used a similar method Disadvantages After each prover run the can must be drained before refilling - this usually is accomplished by pumping

back to storage Pumping back to storage was usually a very slow process Most terminals used a portable prover can - this required two and sometimes three people to move it into

position and level it. A portable prover, when in position, effectively blocks that loading bay. Using a fixed prover can could

eliminate this and installing a manifold from each loading bay to the fixed prover can - this introduces contamination and displacement problems.

As loading rates increased, the size requirement of the prover increased from the 500-750 gallon size to 1000-1500 gallon size; doubling the size lengthened the amount of time required to pump back to storage and the volume of product that was downgraded if pumped back through a single return line.

With the advent of bottom loading several events occurred which increased the expense of using a prover can. Increased flow rates Reduction in manpower Value of product Emphasis on frequent proving cycles Product devaluation - pump back Premium into Regular and Kerosene into Diesel due to existing pump

back manifold designs.

Pipe Prover System

The Pipe Prover was developed to prove large, high capacity meters at high volume transfer installations and pipelines. Prior to the development of the Pipe Prover system design for high flow applications was based on using a bank of smaller meters in parallel which could be proven individually with a volumetric prover can. This required a considerable amount of time and equipment. The time required for the proving process was decreased by proving one meter in a volumetric prover can (which became a Master Meter), and then each meter was set up to flow through the Master Meter and compared to it.

With the development of the Pipe Prover a single high capacity meter could now be proven accurately,

replacing the bank of smaller meters in parallel. Advantages Allowed the use of large, high volume meters Did not require pump-back system as flow was diverted through the Pipe Prover and then back into the

line. Could be automated and operated remotely. Reduced time required to prove. Provided a higher degree of proving accuracy than previously obtained with volumetric prover cans.


Pipe Prover System (continued)

Disadvantages Expensive Rather high pressure drops due to resistance of the displacer. While the pressure drop has little or no

effect on a pipeline system, it can cause a drop in flow rate at a transport loading terminal that normally uses low-head, high volume centrifugal pumps.

Conventional Pipe Provers use mechanically actuated switches to determine displacer position - these mechanical switches have appreciable uncertainties.

The design usually requires a high quality double-block and bleed valve which should be monitored for seal integrity.

Requires a considerable amount of calculation to correct for temperature and pressure. Not designed for start-run-stop flow conditions such as transport loading - primarily used for long

continuous delivery conditions. When used at a transport loading terminal, a return line to storage may be required as the average

compartment size of a transport does not allow sufficient time to cycle the prover manifold valves and obtain repeat prover runs.

By design, the meter should be at a given rate of speed before the prover run is started. This requirement does not allow the transport loading meter to be proved through the start-run-stop procedure that is typical of loading a transport compartment and does not take into account the variations in the accuracy curve of the meter over the varying flow rates while loading a compartment.

Small Volume Provers

A Small Volume Provers is sometimes referred to as a compact flow or a ballistic prover. This is the latest entry of meter proving equipment available to the petroleum industry. The Small Volume Prover combines a piston and valve arrangement with a very precise cylinder, The system utilizes optical position switches and a data acquisition technique called Dual Chronometry. The system requires a microprocessor system (personal computer) to handle and process the data collected.

Advantages As the name applies, much smaller than conventional pipe provers. Good mobility - can be moved easily. Can handle a wide range of flow rates. Very good accuracy. Can be re-proven with small volumetric prover cans. Disadvantages Temperature & pressure extremely critical. Requires a power source to return the piston to the start position. All adjustments are very critical Requires a well trained technician to operate & diagnose the problems. Due to physical size will not fit under a transport loading rack with the transport at many loading racks.

Master Meter Provers

While not new or unique as a method for proving petroleum delivery meters, the system has primarily been used to prove LACT units and other remote meter installations. The system was originally devised to prove a bank of small pipeline meters as previously indicated.

The introduction of high resolution optical transmitters and electronic counters for use with pipe provers

gave the system a real boost. Electronic counters with very accurate gating circuits eliminated the method of comparing mechanical counter readings on the master meter with the meter being proved. This feature was especially important as it provided 100 pulses or more a gallon which allowed runs as small as 100 gallons to be used to obtain 10,000 counts.


Master Meter Provers (continued) Gate City became involved with several applications that led us to be believe that the Master Meter proving

system could become a viable alternative to the volumetric prover can for proving transport loading meters. To meet this need, Gate City became further involved with several leading oil companies working together to develop and improve the equipment techniques required to implement the Master Meter proving system.

Honeywell Enraf purchased Gate City and immediately saw the advantages to the Master Meter Proving

System. LPS developed a rechargeable, battery powered electronic counter with the batteries isolated and fused in such a manner as to provide a system designed to intrinsically safe specifications. Constant improvements in pulse output technology from various meter manufacturers allow reliable accurate pulse trains for counting. Further improvements in the Master Meter cart (3 or 4 wheel) and accessories are continually being made as we receive additional suggestions from our customers.

In order to have acceptance, the electronics must be designed in such a manner that a person can readily

prove the integrity of the components beyond a shadow of a doubt. This has been accomplished by self-check verification logic and by easily outputting proving data for external verification.

Our whole approach is based on providing reliable equipment so that only one man is required to position

the Master Meter cart and accessories, connect the loading arm to the Master Meter, connect it to the transport and calibrate the delivery meter while loading a transport. Points of Interest - Effects of Temperature

The most significant variable when calibrating a Master Meter is the effects of temperature. Not enough can be said about the importance of taking an accurate temperature reading. A brief review of the American Petroleum Institute, Manual of Petroleum Measurement Standards, Chapter 11.1 - Volume Correction Factors - Table 6B quickly illustrates the difference 1/2 F will make in 1000 gallons.

Example: Gasoline - 58 API Gravity 1/2 F = 0.34 gallons per 1000 gallons Diesel Fuel - 35 API Gravity 1/2 F = 0.28 gallons per 1000 gallons Not only is this critical when calibrating a Master Meter, it is equally critical when proving a loading rack

meter into a volumetric prover can. Since the temperature can vary between the meter and the prover can, care must be taken to accurately record the temperature at the meter and at the prover can just prior to reading the scale in order to determine the change in volume due to a temperature change. Generally, the prover can is affected by the weather conditions at the time - rain, wind, sun, ambient temperature, etc. - will cause a temperature change between the product flowing through the meter when the volume is read in the prover.

Since the variation is so significant, it is very important that the thermometers be very accurate and easily

read to 0.2 of a degree or less. All thermometers should be removable in order to test them periodically. The petroleum industry and the regulatory agencies are demanding a higher degree of measurement

accuracy. In order to achieve this accuracy we must be aware of the variable factors involved and correct them to the best of our ability.

After the Master Meter has been proven, and the factors derived, the thermometer becomes less

significant. This is due to the fact that the temperature effect is the same for the rack meter and the Master Meter thereby canceling itself out. The two meters in series quickly reach the same temperature and respond alike to weather conditions. In most cases a thermometer reading is not required since several hundred gallons of flow will equalize the effects of temperature.


Master Meter Provers (continued)

Since the standard generally used by the various weights and measures departments for this type of service is a volumetric prover can, this is the standard that we will be judged by. As indicated previously, the increase in flow rates has required larger size prover cans, in fact the volume is very close to the average compartment in a transport.

This is a plus since we are very closely approximating the actual delivery condition with the volumetric prover. When testing any device it is always best to duplicate the actual conditions with which the device will be used.

When a Master Meter is calibrated using a volumetric prover can, we are duplicating the start-run-stop

condition of loading a transport compartment. This is very important as the factor for the Master Meter will reflect the changes in accuracy at the various flow rates. Based on this, we should be able to prove a meter with a Master Meter and then with a volumetric prover can with near equal results - in fact we must be able to do this since the prover can is the standard.

Points of Interest - Volumetric Meter Proving

Measurement errors associated with meter proving of flow meters at truck loading racks can be difficult to identify and correct. One such problem recently occurred at a major oil companys loading rack. The flowmeters had large factor shifts and poor repeatability. The method used to prove the meters was the volumetric prover can. The meters were inspected and found to be in good condition. For further verification a new meter was installed, however the problem remained.

After verifying relatively constant flow rates, temperature, and pressure along with adequate back pressure

both engineers and service technicians could not determine the problem. Finally the vapor recovery system was inspected and found to be incapable of recovering all of the vapors when several trucks were loading at the same time. This caused a pressure buildup in the vapor lines and resulted in the volumetric prover can being pressurized.

Although the pressurization was only a few inches of water column (1 H20 = 0.03 PSI) it caused the prover

can to expand thus changing its actual volume. After consulting with state weights and measures, approval was given to remove the vapor recovery line from the prover after each proving run in order to relieve any pressure from the prover prior to reading the certified volume. This eliminated the problem and all meters were proven satisfactory.

Since only a few inches of water column caused the prover to expand the meter factors had been incorrect

resulting in product losses for the major Oil Company.


Points of Interest - Crude Oil/Asphalt/Heavy Fuel Oil Proving Since Gate City began working with Master Meter systems for use with high viscosity and heated products,

we have developed procedures and techniques to insure safety and prevent any spillage. At temperatures above 100oF F it is very important that the operator be able to safely maneuver the Master

Meter and make-up connections to the prover manifold, without the risk of burns due the extreme product temperatures. It is equally important that any spillage be kept to an absolute minimum. To accomplish this we have developed a fitting package designed around wing unions and high performance butterfly valves with drain down fittings that will allow an operator to connect and disconnect (especially disconnect) with a minimum of product loss.

When a 6 or larger positive displacement Master Meter is required, the meter is mounted on a platform that

is fastened to a set of rails. A double-wound worm gear winch is positioned in such a manner that the Master Meter, connecting hoses and fittings will move easily into position to makeup to the prover manifold. In the case of heated products or 8 or larger diameter hoses a small manually operated winch with a telescoping arm may be utilized to position the wing union fittings for connection. The entire assembly is mounted on a specially fitted trailer. This design has proven to be very practical, safe, easy to use and reduces spillage to an absolute minimum, based on previous experience the contamination contents of an 8 connection is approximately 3.6 US gallons.

The wing unions are available in various sizes and temperature and pressure ratings which will

accommodate most requirements. Wherever possible we favor using flexible stainless steel hose with the number of braids required to meet conditions.

Since there are many variations to designing a system, we would on request provide drawings with

equipment specifications for customers examination. If the drawings and specifications meet with approval, a quotation would then be prepared for further examination.


MMC-9 CONTROL PANEL LAYOUT

MMC-9 Master Meter Counter Control Panel

Refer to the following pages for an explanation of the individual controls.


CONTROL DESCRIPTION AC Fuse The AC fuse protects the battery charging circuitry in the MMC-9 against damage from overload. This is a type MDL 1/2 Amp rated fuse. When this fuse is good, and the MMC-9 is turned off but plugged into line power, the Battery light will illuminate orange. If this fuse is faulty, the Battery light will not illuminate orange when the power switch is off and the unit is plugged into line voltage. CAUTION: Failure to replace this fuse with the exact type of fuse specified may result in damage or equipment failure. DC Fuse The DC fuse protects the internal electronics circuitry of the MMC-9 against damage from overload. This is a type MDL 1/2 Amp rated fuse. When this fuse is good, the Battery light will illuminate green when the Power Switch is turned on. When this fuse is bad, the Battery light will be off when the Power Switch is turned on. NOTE: A completely dead battery will also act like a blown DC fuse. CAUTION: Failure to replace this fuse with the exact type of fuse specified may result in damage or equipment failure. Battery Charge Power Plug This industry standard power connector and cable are used to charge the battery in the MMC-9. The supply voltage range allowable on the Battery Charge Power Plug is from 90 Vac to 265 Vac, 48 to 63 hz. NOTE: To prevent inadvertent violation of the intrinsic safe nature of the unit, the MMC-9 cannot be operated from AC line voltage. It will only operate from the battery. Therefore, the battery must be charged prior to use. Turning on the Power Switch disconnects the battery charger and therefore discourages use of the line cord in hazardous areas. Power Switch The MMC-9 Power Switch allows the operator to apply power to the electronics. When in the OFF position, the Power Switch connects the battery charger to the battery. When in the ON position, the Power Switch connects the battery to the electronics. RS-232 COMM This connector is used to transfer data from the MMC-9 to a computer. The connector is a standard DB-9S connector and is wired according to the standard used in computer DCE configurations. A cable connecting this port to a computer should be a null cable, in that the transmit and receive lines are crossed. See the section on wiring for a diagram of this cable. Ground The MMC-9 should be grounded when in use in hazardous areas. This connector allows a static drain or grounding cable to be attached to a low resistance earth ground. The connector is a RCA Phono-jack. Temperature Probe When proving the Master Meter it is important to correct the volume of the fuel to a standard temperature. This is done by installing a temperature probe into the flow stream at the Master Meter and connecting it back to the MMC-9 through the Temperature Probe jack. This stereo phone jack is used to connect a 3 wire, cable and probe assembly. The probe used MUST be current proportional to absolute temperature with one micro-amp per degree Kelvin output. CAUTION: Do NOT connect an RTD type temperature probe to this jack as it will not work and may cause damage to the electronics.


CONTROL DESCRIPTION (continued) GC-1000 Connector This connector is used to bring pulses from the Master Meter into the electronics. The 7 pin Amphenol style connector pin-out is described in detail in the section on wiring diagrams. CAUTION: Use ONLY cables manufactured by Honeywell Enraf for connection to this input. Use of home-made cables may result in damage to the electronics. GCT-1 Connector Pulses from the meter under test are conducted into the MMC-9 through this connector. The 4 pin Amphenol style connector pin-out is described in detail in the section on wiring diagrams. CAUTION: Use ONLY cables manufactured by Honeywell Enraf for connection to this input. Use of home-made cables may result in damage to the electronics. Display Selection Lights When each of the following LED lamps is illuminated, the corresponding information is displayed on the large numeral display: MASTER METER (green) Displays the raw pulse count from the Master Meter input. PRESET (amber) Displays the gate-to-gate pulse count or volume of the Meter Under Test.1 TEMPERATURE (red) Displays the current temperature measured by the probe. FLOW RATE (green) Displays the current flow rate in volume units per minute or hour.2 1. Pulse Count or Volume depends upon the setting of program parameter 060. 2. Units per minute or per hour depends upon the setting of program parameter 161. [DISPLAY] Key The Display key or button cycles the large numeral display functions through each of the four selections described above. METER INFORMATION Display This height, 8 digit wide, liquid crystal display provides an easy to read numeric output for the four types of information described above. CONTRAST Control This potentiometer adjustment is accessible through a hole in the MMC-9 faceplate. A small (1/8 or smaller) straight bladed screwdriver must be used to adjust this control. Rotating this control changes the intensity of the 4-line by 20 character display. TEMPERATURE PROBE ADJUST Control This potentiometer adjustment is accessible through a hole in the MMC-9 faceplate. A small (1/8 or smaller) straight bladed screwdriver must be used to adjust this control. Rotating this control adjusts the calibration of the temperature probe and circuitry. PROGRAMMING / OPERATION Display This backlit liquid crystal display is a 5 x 7 dot matrix character display consisting of 4 lines of 20 characters. The MMC-9 uses this display as its primary display to the user. Various screens are available to the user by stepping through menus of options. A map of the screens and how to reach them is available in the Appendix section of this manual.


CONTROL DESCRIPTION (continued) BATTERY Indicator Light This LED indicator displays the status of the battery in the MMC-9. OFF - When the unit IS NOT plugged into line voltage and the power switch is turned off. ORANGE - When the unit IS plugged into line voltage charging and the power switch is turned off. GREEN - When the unit is turned on and there is sufficient charge to run the unit. RED - When the unit is turned on and the battery charge is getting low. CAUTION: Do not continue to operate the unit for an extended time when the BATTERY indicator light is red. Doing so may produce unreliable operation, erroneous counts, and incorrect results. STOP Indicator Light This red LED indicator illuminates when the count circuit is gated off or stopped. The count cannot increment in this mode. The [RUN/STOP] key stops the counter and illuminates this light. GATE Indicator Light This amber LED indicator light flashes when the Master Meter pulse accumulator is on or able to count. When this light is steady off, counts entering the Master Meter pulse accumulator are ignored. When flashing, if there is flow through the Master Meter and the cable is connected between the GC-1000 connector on the MMC-9 and the Master Meter, counts should be seen accumulating on the PROGRAMMING/OPERATION display registers. Various modes use the gate circuit differently. See the sections on Meter Proving techniques to understand when the GATE light should be flashing. READY Indicator Light The green READY LED indicator light is ON when the Master Meter and Meter Under Test registers are zeroed and the counter is prepared to accept pulses from the inputs. No pulses can accumulate when this light is on. If pulses are being received by the MMC-9 when this light is ON, they are ignored. This indicator light is OFF when the Master Meter pulse accumulator is gated on, accumulating pulses. [RUN/STOP] Key This key or button toggles the gate circuitry operating mode. Two modes exist. In the Stopped mode the Master Meter pulse accumulator ignores incoming pulses. In the Run mode, the Master Meter pulse accumulator counts incoming pulses. NOTE: When Stopped, the mode cannot be changed to Run without first clearing the registers by pressing the [RESET] key. [RESET] Key Pressing this key clears the contents of the Master Meter accumulator and the Meter Under Test accumulator registers. This key must be pressed prior to placing the unit into the Run Mode. NOTE: When the pulse accumulator is Running, this key has no effect. MASTER METER Pulse Light This red LED indicator light flashes with pulses being received on the GC-1000 input. When flow stops in the Master Meter, this light be solidly on or off depending upon the position of the meter. NOTE: Due to the high speed of the pulses being received, this light may appear to be continuously ON during flow.


CONTROL DESCRIPTION (continued) METER IN TEST Pulse Light This red LED indicator light flashes with pulses being received on the GCT-1 input. When flow stops in the Meter Under Test, this light be solidly on or off depending upon the position of the meter. NOTE: Due to the high speed of the pulses being received, this light may appear to be continuously ON during flow. KEYBOARD KEYS [PROGRAM] Pressing this key allows the user access to the Programming Control Parameters in the MMC-9. The parameters allow the setting of control values that are used by the program. A table of valid values and their function is listed later in this manual as well as text descriptions of each individual parameter. NOTE: Changes to parameter values are not normally required during operation. Changing parameters during proving runs should be avoided. This may cause incorrect data to be logged. [ESCAPE] This key takes the user back to the previous screen. [v NEXT ^] This is a dual sensitive key in that there are up and down active buttons on this key. The left end of this key takes the user to the previous or next lower value. When viewing parameters, it takes the user to the next lower numbered parameter. The right end of this key takes the user to the next higher parameter. [< CURSOR >] This is a dual sensitive key in that there are left and right active buttons on this key. The left end of this key moves the cursor to the left in a numeric value. The right end of this key moves the cursor to the right in a numeric value. [v CURSOR ^] This is a dual sensitive key in that there are up and down active buttons on this key. The left end of this key moves the cursor down to the next lower line on the display. The right end of this key moves the cursor up to the next higher line on the display. [v NUMBER ^] This is a dual sensitive key in that there are up and down active buttons on this key. The left end of this key de-increments the value the cursor is on to the next lower value. The right end of this key increments the value the cursor is on to the next higher value. [TASK] The [TASK] key allows the user to execute various housekeeping functions. These include but are not limited to the clearing of log data, resetting the unit to defaults, etc. CAUTION: Execution of certain tasks can cause the loss of all data stored in the MMC-9. The user should make certain that all logs are transferred to an external computer prior to execution of destructive tasks.


CONTROL DESCRIPTION (continued) [PRINT] The [PRINT] key allows the user to send serial ASCII data from the MMC-9 to an external computer. The user selects which DATA file to send and whether to send a sequence of entries or the entire file. Logged data records are sent over the RS-232 COMM port. Records have comma delimited fields, terminated with a carriage return/line feed character sequence. [DATA] This key selects a set of screens for the viewing of logged data on the display. [ F2 ] When in the meter proving mode, (Totalizer or Gated Modes) this key allows the user to select the Master Meter Correction Factor to be used during the proving. [ F1 ] The [ F1 ] key toggles between the Logged and the Not Logged options. Use this key from any one of the CALIBRATION mode screens. [ NO ] Pressing this key responds negatively to questions from the program. [ YES ] This key responds positively to questions from the program. [ ENTER ] The [ENTER] key is used following any numeric entry. [ numbers ] As required. PROGRAMMING & SETUP

Configuring The MMC-9 For Use

The Master Meter Computer is a microprocessor based flow computer. In order to make the device appeal to the broadest possible market, many of the operating parameters which control its features and programs are user configurable. Changes to the programming parameters are saved in non-volatile memory and are not affected should battery power fail. Once set, the programming parameters rarely need to be changed. It is shipped from the factory with a default set of operational parameters installed. The default values are the most commonly used settings and will be correct for most users. The table that follows lists the individual parameter codes, a brief description, the numeric range of values that may be entered, the units of measure that the value is in, the format of the number for reference, and when the value can be changed. Finally, the default value is the parameter value as shipped from the factory. Following the table is a detailed description of each parameter. The following parameters are critical and should be reviewed and set prior to initial use.


PROGRAMMING & SETUP Parameter Table

Code Description Range Units Format Access Modes Default Value 001 Master Meter K-Factor 00000.001-99999.999 Pulses/unit volume nnnnn.nnn R-Anytime / W- Anytime 00100.000 002 Meter Under Test K-Factor 00000.001-99999.999 Pulses/unit volume nnnnn.nnn R-Anytime / W- Anytime 00001.000 020 Coefficient of Expansion Master Meter 0.0000000-1.0000000 Parts / 10 Million per Degree F/C n.nnnnnnn R-Anytime / W- Anytime 0.0000186 021 Coefficient of Expansion Prover Can 0.0000000-1.0000000 Parts / 10 Million per Degree F/C n.nnnnnnn R-Anytime / W- Anytime 0.0000186 032 Location 000-999 nnnn R-Anytime / W- Anytime 000 034 Meter Number 000-999 nnn R-Anytime / W- Anytime 000 036 API Gravity Of Product 30.065.0 000.0 nn.n R-Anytime / W- Anytime 30.0 037 Specific Gravity Of Product 00.0000-99.9999 nn.nnnn R-Anytime / W- Anytime 00.0000 039 Coefficient of Expansion Product 0.000000-1.000000 Parts / Million per Degree F/C n.nnnnnn R-Anytime / W- Anytime 0.000444 040 Degree Select 0-1 Degree F / C n R-Anytime / W- Anytime 0 043 Temperature Low Range 000.0-999.9 Degrees nnn.n R-Anytime / W- Anytime 000.0 044 Temperature High Range 000.0-999.9 Degrees nnn.n R-Anytime / W- Anytime 100.0 045 Flow Rate Low Range 00000-65535 Units per Minute / Hour nnnnn R-Anytime / W- Anytime 00000 046 Flow Rate High Range 00000-65535 Units per Minute / Hour nnnnn R-Anytime / W- Anytime 1000 047 Count Variance Deviation Allowed 00.00 - 10.00% Percent nn.nn R-Anytime / W- Anytime 010 050 Meter Rotation Direction 0 - 1 Clockwise / Counter Clockwise n R-Anytime / W- Anytime 0 060 Preset Counter Selector 0-1 Pulse / Volume n R-Anytime / W- Anytime 0 061 Pulse Counter Preset 000001-999999 nnnnnn R-Anytime / W- Anytime 000010 062 Volume Counter Preset 00000.001-99999.999 nnnnn.nnn R-Anytime / W- Anytime 00004.000 063 Correction Factor Application Action 0 - 1 Multiply / Divide n R-Anytime / W- Anytime 0 064 Automatic Reset on Proving Runs 0 - 1 Enable / Disable n R-Anytime / W- Anytime 0 070 Pulse Train Phase 0-1 Single Phase / Dual Phase n R-Anytime / W- Anytime 1 071 Reference Temperature 0 - 200 Degrees nnn.n R-Anytime / W- Anytime 60 080 Prover Mode 0 4 various n R-Anytime / W- Anytime 2 081 Data Logger Mode 0-1 Disable / Enable Data Logging n R-Anytime / W- Anytime 0 082 Back Light Timeout 1-9 Minutes n R-Anytime / W- Anytime 2 083 Temperature Compensation Select 0-1 Disable / Enable Compensation n R-Anytime / W- Anytime 1 085 Consecutive Runs Completed 0-3 ( 0 entry only ) Count n R-Anytime / W- Anytime 0 086 Flow Rate Ramp Up 0 - 120 Seconds nnn R-Anytime / W- Anytime 5 087 Warning Screen Use 0-1 Disable / Enable n R-Anytime / W- Anytime 1


PROGRAMMING & SETUP Parameter Table (continued)

Code Description Range Units Format Access Modes Default Value 110 Current Date 01/01/01-12/31/99 nn/nn/nn R-Anytime / W- Anytime None 111 Current Time 00:00:00-23:59:59 nn:nn:nn R-Anytime / W- Anytime None 141 Keypad No ActivityTimeout 010-999 Seconds nnn R-Anytime / W- Anytime 60 161 Flow Rate Time Base 0-1 Minute / Hour n R-Anytime / W- Anytime 0 195 Printer Baud Rate Selector 0-3 1200, 2400, 4800, 9600 n R-Anytime / W- Anytime 3 300 Temperature Tolerance Limit Action 0-1 Disable / Enable n R-Anytime / W- Anytime 1 310 Flow Rate Tolerance Limit Action 0-1 Disable / Enable n R-Anytime / W- Anytime 1 320 Count Variance Tolerance Limit Action 0-1 Disable / Enable n R-Anytime / W- Anytime 1 6nn Master Meter Correction Factor (1-25) 0.0000 1.9999 n.nnnn R-Anytime / W-Never 1.0000 7nn MMCF Name (1-25) TEXT 20 char. R-Anytime / W-Never various 802 Alarm Status 0000-ffff hhhh R-Anytime / W-Never 0000 860 Total Volume Master Meter 00000.000-99999.999 Unit Volume of Product nnnnn.nnn R-Anytime / W-Never 00000.000 862 Total Volume Meter Under Test 00000.000-99999.999 Unit Volume of Product nnnnn.nnn R-Anytime / W-Never 00000.000 890 Software Release Version example: V2_02 aaaaaa R-Anytime / W-Never None 891 Software Release Date 01/01/00-12/31/99 nn/nn/nn R-Anytime / W-Never None 892 Product ID TEXT aaaaaaaa R-Anytime / W-Never None 893 Unit Serial Number Example(12345678) aaaaaaaa R-Anytime / W-Never None 894 Unit Oscillator Speed 00000000-99999999 HZ nnnnnnnn R-Anytime / W-Never None 900 Number of Records in Prover Log 000-499 nnn R-Anytime / W-Never 000 903 Prover Log Status 0-2 n R-Anytime / W-Never 0 920 Current Prover Record 000-499 nnn R-Anytime / W-Never 000 921 Current Summary Record 000-149 nnn R-Anytime / W-Never 000 950 Number of Records in Summary Log 000-149 nnn R-Anytime / W-Never 000 953 Summary Log Status 0-2 n R-Anytime / W-Never 0


PROGRAMMING & SETUP Parameter Descriptions

Master Meter K-Factor Parameter #001 Value Range: 00000.001-99999.999 Default Value: 00100.000

The Master Meter K-Factor parameter is the calibration K-Factor for the loading rack meter measuring the master meter volume. The units are in pulses per unit volume of product. Examples: When calibrated meter K-Factor equals 0100 enter: 0100 When calibrated meter K-Factor equals 0050 enter: 0050 Meter Under Test K-Factor Parameter #002 Value Range: 00000.001-99999.999 Default Value: 00010.000

The Meter Under Test K-Factor parameter is the calibration K-Factor for the meter measuring the volume. The units are in pulses per unit volume of product. Examples: When calibrated meter K-Factor equals 0100 enter: 0100 When calibrated meter K-Factor equals 0050 enter: 0050 Coefficient of Expansion Master Meter Parameter #020 Value Range: 0.0000000-1.0000000 Default Value: 0.0000186

This parameter is the Coefficient of Expansion Master Meter which is in parts per ten million per degree F/C. This value is the Cts value in the product netting equation. Coefficient of Expansion Prover Can Parameter #021 Value Range: 0.0000000-1.0000000 Default Value: 0.0000186

This parameter is the Coefficient of Expansion Prover Can which is in parts per ten million per degree F/C. This value is the Cts value in the product netting equation. Location Parameter #032 Value Range: 000-999 Default Value: 000

The Location parameter is a site identification number. Meter Number Parameter #034 Value Range: 000-999 Default Value: 000

The Meter Number parameter is an identification number for each meter. API Gravity of Product Parameter #036 Value Range: 30.0-65.0 Default Value: 30.0

The API Gravity of Product parameter is used in a lookup table to find the correct temperature compensation factors when performing temperature compensation. Changing this value changes parameter 037 & 039 automatically. Examples: To have the MMC-9 assign a value of 30.5 enter 30.5. To have the MMC-9 assign a value of 40.0 enter 40.0 Specific Gravity of Product Parameter #037 Value Range: 00.0000-99.9999 Default Value: 1.0000

This parameter is the Specific Gravity of Product. Changing this value changes parameter 036 & 039 automatically.


PROGRAMMING & SETUP

Parameter Descriptions (continued)

Coefficient of Expansion Product Parameter #039 Value Range: 0.000000-1.000000 Default Value: 0.000444

This parameter is the Coefficient of Expansion Product which is in parts per million per degree F/C. Changing this value changes parameter 036 & 037 automatically. Degree Select Parameter #040 Value Range: 0-1 Default Value: 0

The Degree Select parameter chooses between Fahrenheit and Celsius Degree when performing temperature compensation. See parameter # 083. Examples: Enter 0: For Fahrenheit Enter 1: For Celsius Temperature Low Range Parameter #043 Value Range: 000.0-999.9 Default Value: 000.0

The Temperature Low Range parameter sets the lowest temperature value the Master Meter Computer can operate at and still be considered an acceptable run. Temperatures below this value will generate a Bad Temperature Tolerance tag for this Run. Temperature High Range Parameter #044 Value Range: 000.0-999.9 Default Value: 075.0

The Temperature High Range parameter sets the highest temperature value the Master Meter Computer can operate at and still be considered an acceptable run. Temperatures above this value will generate a Bad Temperature Tolerance tag for this Run. Flow Rate Low Range Parameter #045 Value Range: 00000-65535 Default Value: 00000

The Flow Rate Low Range parameter sets the lowest flow rate value the Master Meter Computer can operate at and still be considered an acceptable run. Flow Rates below this value will generate a Bad Flow Rate Tolerance tag for this Run. Flow Rate High Range Parameter #046 Value Range: 00000-65535 Default Value: 1000

The Flow Rate High Range parameter sets the highest flow rate value the Master Meter Computer can operate at and still be considered an acceptable run. Flow Rates above this value will generate a Bad Flow Rate Tolerance tag for this Run. Count Variance Deviation Allowed Parameter #047 Value Range: 0.00 - 10.0% Default Value: 00.10%

The Count Variance Deviation Allowed parameter sets the amount the Master Meter Computer can deviate from the desired count and still be considered an acceptable run. A value of 10 sets the allowable deviation at 10%, therefore a count between 90% & 110% of the required count would be acceptable in considering a good run.


PROGRAMMING & SETUP Parameter Descriptions (continued)

Meter Rotation Direction Parameter #050 Value Range: 0-1 Default Value: 0

The Meter Rotation Direction parameter identifies a direction of rotation for the master meter. Examples: Enter 0: For a Clockwise Direction Enter 1: For a Counter Clockwise direction Only applies if two phase Master Meter , see parameter # 070. Preset Counter Selector Parameter #060 Value Range: 0-1 Default Value: 1

The Preset Counter Selector parameter determines whether the Master Meter Computer is to count raw pulses or to count in volume. Examples: To select Pulses / Volume counting: Enter 0: For Pulse Counting (uses 061 Pulse Counter Preset) Enter 1: For Volume Counting (uses 062 Volume Counter Preset) Pulse Counter Preset Parameter #061 Value Range: 000001-999999 Default Value: 000001

The Pulse Counter Preset parameter sets the number of un-factored (raw pulses) at which the Master Meter Computer is to stop counting incoming pulses. Volume Counter Preset Parameter #062 Value Range: 00000.001-99999.999 Default Value: 00000.001

The Volume Counter Preset parameter sets the volume (quantity) at which the Master Meter Computer is to stop counting incoming pulses. Correction Factor Application Action Parameter #063 The Correction Factor Application Action parameter sets whether the Master Meter Correction Factors stored in parameters 600-625 are used as a multiplying or dividing factor. When set to a 0 the raw pulse count from the Master Meter is multiplied by the correction factor. When set to a 1 the raw pulse count from the Master Meter is divided by the correction factor. Automatic Reset on Proving Runs Parameter #064 The Automatic Reset on Proving Runs parameter sets whether the MMC-9 automatically rests and runs three consecutive proving runs without operator intervention if no alarms or errors exist. This provides the capability of logging three consecutive good runs in the shortest possible time, in order to get an acceptable proving sequence in one compartment. This parameter applies to GATED proving runs. If parameter 64 = 1 the feature is enabled. If parameter 64 = 0 the feature is disabled. The MMC-9 will stop and display the count generated after each run, and must be reset and re-started by the operator. NOTE: This feature only operates properly if the MMC-9 is in the Logged mode. Incorrect operation results if parameter 64 = 1 and the MMC-9 is operating in the Not Logged mode.

Value Range: 0-1 Default Value: 0




Pulse Train Phase Parameter #070 Value Range: 0-1 Default Value: 1

The Pulse Train Phase parameter selects whether a single phase pulse or a dual phase pulse is to be used for master meter operations. Examples: Enter 0: For Single Phase Pulse Operation Enter 1: For Dual Phase Pulse Operation See parameter # 070. Reference Temperature Parameter #071 The Reference Temperature parameter sets the temperature the MMC-9 uses for calculating net volume. This value is referenced only during the calibration of the Master Meter. Prover Mode Parameter #080 Value Range: 0-4 Default Value: 0

The Prover Mode Parameter selects between one of five calibration routines. The menu selection on the MMC-9 also automatically sets this parameter. Examples: Enter 0: For Selftest1 Enter 1: For Selftest1 Enter 2: For Totalizer Meter Calibration Enter 3: For Gated Meter Calibration Enter 4: For Master Meter Calibration Data Logger Mode Parameter #081 Value Range: 0-1 Default Value: 0

The Data Logger Mode parameter sets the logging mode of operation. In the data logging mode prover records and summary averaging records are created when performing Totalizer and Gated Meter Calibration. Examples: Enter 0: To Disable Data Logging Enter 1: To Enable Data Logging

Back Light Timeout Parameter #082 Value Range: 1-9 Default Value: 1

The Back Light Timeout parameter sets the timeout period in minutes, where the backlight is turned off if no meter pulses are received or the keypad is not pressed within the timeout period. The backlight is turned on the instant pulses are received or when any key is pressed. Temperature Compensation Select Parameter #083 Value Range: 0-1 Default Value: 0

The Temperature Compensation Select parameter selects between enabling and disabling temperature compensation. Examples: Enter 0: To Disable Temperature Compensation Enter 1: To Enable Temperature Compensation




Consecutive Runs Completed Parameter #085 Value Range: 0-3 (display) Default Value: 0

This parameter stores the count of consecutive runs completed toward creation of a summary record. It is provided for reference only. The user can only write this value to zero (0), thereby clearing the count and forcing the MMC-9 to perform three new runs to get consecutive records. This value automatically clears to zero upon creation of the Summary Record. Flow Rate Ramp Up Parameter #086 The Flow Rate Ramp Up parameter sets the time, in seconds, the MMC-9 ignores the flow rate. This allows for the changing flow rates during ramp up to steady state flow. Warning Screen Use Parameter #087 Value Range: 0-1 Default Value: 1

Setting this parameter to a zero value turns off the Conditional Warning Screen. This screen warns the user that the proving run just completed has either a temperature, flow, or count deviation tolerance error. Setting this parameter to a one, enables the screen to be displayed by the program if needed. Current Date Parameter #110 Value Range: 01/01/00 12/31/99 Default Value: Current Date

The Current Date parameter sets the current Date of the Master Meter Computer. Use the cursor Right and Left keys on the keypad to move the cursor to the number you wish to change to match the current date, then use either the numeric keys or the UP or the DOWN keys to increase or decrease the value. When the time is correct, Press ENTER. Current Time Parameter #111 Value Range: 00:00:00 23:59:59 Default Value: Current Time

The Current Time parameter sets the current of the Master Meter Computer. Use the cursor Right and Left keys on the keypad to move the cursor to the number you wish to change to match the current time, then use either the numeric keys or the UP or the DOWN keys to increase or decrease the value. When the time is correct, Press ENTER. Keypad No Activity Timeout Parameter #141 Value Range: 010-999 Default Value: 60

The Keypad No Activity Timeout parameter sets the time the Master Meter Computer will remain in the programming mode without any keypad activity. When this time is reached the Master Meter Computer will return to the idle mode.

Flow Rate Time Base Parameter #161 Value Range: 0-1 Default Value: 0

The Flow Rate Time Base parameter determines if the rate function is calculated in units per minute or units per hour. Examples: Enter 0: For Units per Minute Enter 1: For Units per Hour




Printer Baud Rate Selector Parameter #195 Value Range: 0-3 Default Value: 3

The Printer Baud Rate Selector parameter is used to select the baud rate for the printer communication port. Examples: To select the various baud rates: Enter 0: For 1200 Baud Enter 1: For 2400 Baud Enter 2: For 4800 Baud Enter 3: For 9600 Baud Temperature Tolerance Limit Action Parameter #300 Value Range: 0-1 Default Value: 1

The Temperature Tolerance Limit Action parameter is used to enable or disable temperature tolerance checking when performing calibration operations. Examples: Enter 0: To disable temperature tolerance checking Enter 1: To enable temperature tolerance checking Flow Rate Tolerance Limit Action Parameter #310 Value Range: 0-1 Default Value: 1

The Flow Rate Tolerance Limit Action parameter is used to enable or disable flow rate tolerance checking when performing calibration operations. Examples: Enter 0: To disable flow rate tolerance checking Enter 1: To enable flow rate tolerance checking Count Variance Tolerance Limit Action Parameter #320 Value Range: 0-1 Default Value: 1

The Count Variance Tolerance Limit Action parameter is used to enable or disable count variance tolerance checking when performing calibration operations. Examples: Enter 0: To disable count variance tolerance checking Enter 1: To enable count variance tolerance checking Master Meter Correction Factor Parameter #601 - 625 Value Range: 0.0000-1.9999 Default Value: 1.0000

These twenty-five locations store the Master Meter Correction Factor values for use when proving. The values in these locations are automatically updated when the master meter is proven. Access is intended for viewing only.

MM Correction Factor Name Parameter #701 - 725 Value Range: 20 Char. Text Default Value: various

These twenty-five locations store the text name associated with each factor. Used for ease of identification when selecting the factors, the names should reflect the location and condition of the product meter for which the factor is to be used.



Alarm Status Parameter #802 Value Range: 0000-ffff Default Value: 0000

The ONLY alarm available in the MMC-9 is the EEProm Failure Alarm. The Alarm Status parameter gets set if the eeprom gets corrupted. Total Volume Master Meter Parameter #860 Value Range: 00000.000-99999.999 Default Value: 00000.000

The Total Volume Master Meter A parameter records a temporary product volume that the master meter has recorded. The total gets reset when power is cycled. Total Volume Meter Under Test Parameter #862 Value Range: 00000.000-99999.999 Default Value: 00000.000

The Total Volume Meter Under Test parameter records a temporary product volume that the Meter Under Test meter has recorded. The total gets reset when power is cycled. Software Release Version Parameter #890 Value Range: V1_00 Default Value: None

The Software Release Version Parameter records the version of the software used to create the firmware in the Master Meter Computer. This Parameter is read-only and cannot be changed. Software Release Date Parameter #891 Value Range: 01/01/00-12/31/99 Default Value: None

The Software Release Date Parameter records the date the software used in the Master Meter Computer was created. This Parameter is read-only and cannot be changed. Product ID Parameter #892 Value Range: TEXT Default Value: None

The Product ID Parameter records the type of device. This Parameter is read-only and cannot be changed. Unit Serial Number Parameter #893 Value Range: example (12345678) Default Value: None

The Unit Serial Number records a unique number for each Master Meter Computer, this helps device tracking. This Parameter is read-only and cannot be changed. Unit Oscillator Speed Parameter #894 Value Range: TEXT Default Value: None

The Unit Oscillator Speed parameter records the controller processing speed for the Master Meter Computer. This Parameter is read-only and cannot be changed. Number of Records in Prover Log Parameter #900 Value Range: 000-499 Default Value: 000

The Records in Prover Log parameter contains the number of records in the prover log.



Prover Log Status Parameter #903 Value Range: 0-2 Default Value: 0

The Prover Log Status parameter records the current status of the prover run. This parameter is read only and cannot be written to. Examples: 0: No Errors 1: Some Records Overwritten 2: Data Corrupted

Current Prover Record Parameter #920 Value Range: 000-499 Default Value: 000

The Current Prover Record parameter contains the current prover record number. Current Summary Record Parameter #921 Value Range: 000-149 Default Value: 000

The Current C Record parameter contains the current summary record number. Number of Records in Summary Log Parameter #950 Value Range: 000-149 Default Value: 000

The Number of Records in Summary Log parameter contains the number of records in the Summary log. Summary Log Status Parameter #953 Value Range: 0-2 Default Value: 0

The Summary Log Status parameter records the current status of the Summary run. This parameter is read only and cannot be written to. Examples: 0: No Errors 1: Some Records Overwritten 2: Data Corrupted


Changing Parameter Values

For specific instructions on setting up the MMC-9 for your application, see the section on Configuring The MMC-9 that follows. The parameter table and descriptions above allow the MMC-9 to be customized to meet the specific needs of the user. To review and change the parameter settings, the following steps should be utilized:

Press the [PROGRAM] button on the keypad. The display will change to the following screen:

Parameter Code To Access 000

NOTE: This screen has a timeout feature. If no entry is made for some period of seconds, the MMC-9 will revert to the Main Menu screen.

Enter the parameter number that you wish to access by entering three numeric digits and pressing the [ENTER] key. The user may use the left-right [] button to move the cursor to the second or third digit to speed access. The user may use the up-down [v NEXT ^] button to scroll through the parameters until the desired number is reached.

When the desired parameter code is entered, the display changes to:

Parameter xxx nn.nnnn

Where xxx is the parameter code desired and nnn.nnnn is the current value stored in that parameter. NOTE: The cursor is positioned over the first digit in the current value.

At this point, the user may elect to keep the current value. If so, pressing the [ESCAPE] key returns the user to the parameter selection screen. If the user decides to change the value, proceed to the next step. Alternately, the user may use the up-down [v NEXT ^] button to scroll through the parameters until the desired number is reached.

Enter the new value for the parameter. The format of the value must meet the limitations of the parameter as specified in the table. Complete the entry by pressing the [ENTER] key. The user may use the left-right [] button to move the cursor to the second or third digit to speed access. The user may use the up-down [v NEXT ^] button to scroll through the parameters until the desired number is reached.

Upon pressing the [ENTER] key, the screen changes to:

Save? nn.nnnn Yes No

Pressing the [YES] key will enter the new value into non-volatile memory. Pressing the [NO] key

will keep the old value in the parameter. In either case, the user is returned to the Parameter Number To Access screen.

When parameter viewing and changing is completed, the [ESCAPE] key may be pressed several times until the MAIN MENU screen is displayed.


SELF TESTING THE MMC-9

The MMC-9 has built-in self testing functionality. Because of the critical nature of pulse accumulation counts and their impact on reliability, it is important to be able to confirm the accuracy of the counters and the associated hardware. With the internal testing features provided, the user can quickly determine if the hardware and software are functioning correctly. Two special plugs are furnished with the MMC-9 to facilitate these tests. Prior to initiating the tests, these plugs should be inserted into the GC-1000 and GCT-1 connectors, replacing the cables normally used for interface to the meters. The MMC-9 has two high-speed counter circuits in it. Two tests are provided to verify proper operation of the two counters. The first test verifies the Master Meter input counter circuitry, wiring, and software by sending exactly 1000 pulses out of the microprocessor and routing them back into the accumulator and display. The pulses are coupled out of the GC-1000 connector and back in through the same connector by installation of a test plug on the GC-1000 connector. In this manner, the connector and all internal wiring are verified. The second test verifies the Meter Under Test input counter circuitry, wiring, and software. This test counts MUT pulses coming in and utilizes the gating function of the MMC-9 to accumulate the exact counts determined by the PRESET value programmed in. The pulses are coupled out of the GCT-1 connector and back in through the same connector by installation of a test plug on the GCT-1 connector. In this manner, the connector and all internal wiring are verified. Self Test 1 To perform Self Test One, the following steps should be utilized:

Make certain that the Self Test Plug is installed in the GC-1000 connector. Verify that the MASTER METER Pulse Light illuminates, indicating that pulses are being received. From the main menu screen, press the [2] key, selecting the SELF TEST MODE. The display will change to the following screen:

[SELF-TEST] 1 = SELF_TEST1 2 = SELF_TEST2

Select [1] for SELF-TEST # 1. The display will change to the following screen:

SELF-TEST TEST1 MODE CYCLE = NNNNNN PRESS RESET KEY

As instructed, press the [RESET] key. This will clear any residual counts in the accumulator and

prep the MMC-9 for a test cycle. The display will change to the following screen:

SELF-TEST TEST1 MODE CYCLE = 000000 PRESS RUN STOP KEY

Press the [RUN/STOP] key.


Self Test 1 (continued)

The CYCLE count will increment up to 1000 and stop.

SELF-TEST TEST1 MODE CYCLE = 001000 PRESS RESET KEY

Repeat the test several times by pressing the [RESET] and the [RUN/STOP] keys. Note that the

GATE Indicator Light flashes while the count increments, indicating that the accumulator is active or Gated ON.

The test PASSES if the count increments up to 1000 and stops. The test FAILS if the count fails to increment from zero, or fails to stop at exactly 1000. NOTE: The count will remain at zero if the Self Test Plug is not connected.

Self Test 2 To perform Self Test Two, the following steps should be utilized:

Make certain that the Self Test Plugs are installed in both the GC-1000 and GCT-1 connectors. Verify that the MASTER METER Pulse Light illuminates, indicating that pulses are being received. Verify that the METER IN TEST Pulse Light illuminates, indicating that pulses are being received. From the main menu screen, press the [2] key, selecting the SELF TEST MODE. The display will change to the following screen:

[SELF-TEST] 1 = SELF_TEST1 2 = SELF_TEST2

Select [2] for SELF-TEST # 2. The display will change to the following screen:

SELF-TEST TEST2 MODE CYCLE = NNNNNN MUT = NNNNN.NNN PRESS RESET KEY

As instructed, press the [RESET] key. This will clear any residual counts in the accumulator and

prep the MMC-9 for a test cycle. The display will change to the following screen:

SELF-TEST TEST2 MODE CYCLE = 000000 MUT = 00000.000 PRESS RUN STOP KEY

Press the [RUN/STOP] key.


Self Test 2 (continued)

The MUT count will increment up to the PRESET value and stop. The preset value is determined by Program Parameter 061 or 062 as selected by Program Parameter 060. The CYCLE count will increment up to a number that can be determined mathematically by using the formula below.

SELF-TEST TEST2 MODE CYCLE = 010000 MUT = 00100.000 PRESS RESET KEY

Repeat the test several times by pressing the [RESET] and the [RUN/STOP] keys. Note that the

GATE Indicator Light flashes while the count increments, indicating that the accumulator is active or Gated ON.

The test PASSES if the MUT count increments up to the preset value and stops AND the CYCLE count mathematically agrees.

The test FAILS if the count fails to increment from zero, or fails to mathematically agree. NOTE: The count will remain at zero if either Self Test Plug is not connected.

CYCLE COUNT FORMULAS When the Preset Counter Selector (Parameter 060) = Pulse Count Preset (0) CYCLE Count = MMKF X PCP When the Preset Counter Selector (Parameter 060) = Volume Count Preset (1) CYCLE Count = MMKF X MUTKF X VCP Where: MMKF = Master Meter K-factor (Parameter 001) MUTKF = Meter Under Test K-Factor (Parameter 002) PCP = Pulse Count Preset (Parameter 061) VCP = Volume Count Preset (Parameter 062) A Note Regarding Self-Test Pulse Generation The MMC-9 generates 100 master meter pulses for each 1 meter under test pulse. For this reason, caution should be exercised when attempting to demonstrate or practice Gated Mode proving using the two test plugs. If the ratio of Master Meter K-factor (Program Parameter 001) to Meter Under Test K-factor (Program Parameter 002) is not set to 100:1, the Correction Factor generated will not be a number near 1.0000. Instead, it will be offset from 1 by the difference of the k-factor ratios. For instance if the ratio of the two k-factors is 100:10, the Correction Factor produced will be approximately 0.1000. It is recommended that for training and demonstration purposes, the default values for Parameters 001 & 002 be used. Remember to reset the values to the correct number prior to returning to live proving.


DATA LOGGING Data Logging in the Master Meter Counter allows for archival storage of proving information. The information is stored in non-volatile memory. Three types of records are stored. PROVING records contain the dynamic data that make up a single proving run. SUMMARY records are the results of averaging three consecutive proving records to obtain an average weighted factor. MASTER METER CORRECTION FACTOR records store the factor values used by the MMC-9 to correct the master meter pulse stream to a standard volume. Tables of the data contained in each type of record are listed below. Records are stored with an identifying number that increments with each record added. In the case of the PROVING records, the last 450 proving runs logged are stored. As a run is completed, the data for the record replaces the oldest record stored. This is known as a circular file. In the case of SUMMARY records, the last 150 records are stored. When a run average is acknowledged by the user, the data for the three run average replaces the oldest record stored. Thus, the data stored is for the most recent 150 SUMMARY records. There are 25 MASTER METER CORRECTION FACTOR records maximum. Unlike the other two types of data stored, these records are not automatically overwritten. The user must direct the MMC-9 to store the data calculated from a Master Meter Proving run into a specific record. More on the creation and storing of the Master Meter Proving data can be found in the section on Master Meter Proving. Turning ON / OFF Logging There are two methods for turning on and turning off the logging mode. The first method is to change a flag value in the Program Parameter table. The Program Parameter Code that controls LOGGING is parameter code number 081. Setting this parameter to a zero (0) turns off logging. Setting this parameter to a one (1) turns on logging. Refer to the section on Changing Parameter Values for exact details. The second method of turning on or off the LOGGING of data is to press the [ F1 ] key. Pressing this key once will change the mode to the opposite of its current state. To indicate the status of LOGGING, the proving screens have a text message indicating the status. The screens below indicate the differences between the two messages in the Totalizer Mode. Similar screen messages are displayed in the Gated Mode and Master Meter Proving Mode.

When data is LOGGED the following message is displayed :

TOTAL MODE LOGGED NNNNN.NNN NNNNNN MM PRESS RESET KEY

When data is NOT LOGGED the following message is displayed :

TOTAL [NOT] LOGGED NNNNN.NNN NNNNNN MM PRESS RESET KEY


DATA LOGGING (continued) Viewing Logged Data To view LOGGED data, the following steps should be utilized:

From any screen, press the [DATA] key, selecting the DATA DISPLAY MODE. The display will change to the following screen:

1=View Summary Data 2=View Prover Data 3=View MMeter Corr. Factor Locs

Select [1] for SUMMARY records, [2] for PROVING records, or [3] for Master Meter Correction

Factors. When View Summary Data [1] is selected, the display will change to the following screen:

Summ: nnn PUL.: nnnnnnnnn VOL.: nnnnnnn.nnn Corr: n.nnnn

The record displayed is the newest record saved. The display contains the first 4 lines of the data stored in the record. At this point the user may

access the other items in the record by scrolling up and down using the [ v CURSOR ^ ] keys. Refer to the table below for a complete listing of items stored in the record.

Use the [ v NEXT ^ ] keys to step to the next record backward or forward in sequence. Summary Data Table Contents

1. Summ: Record Number (0 149) nnnnn

2. PUL.: Average Master Meter Pulses nnnnnnnnn

3. VOL.: Average Master Meter Volume nnnnnnn.nnn

4. Corr: Average Correction Factor n.nnnn

5. Temp: Temperature(Average) nnn.n

6. Flow: Flow Rate(Average) nnn

7. Run1: Proving Run Record A nnnnn

8. Run2: Proving Run Record B nnnnn

9. Run3: Proving Run Record C nnnnn


DATA LOGGING (continued) Proving Run Data Table Contents

1. Prov: Run Number (0 449) nnnnn

2. Date: Date nn/nn/nn

3. Time: Time nn:nn:nn

4. Loct: Location nnnn

5. MNum: Meter Number nnn

6. MMKF: Master Meter K-Factor nnnnn.nnn

7. TMKF: Meter Under Test K-Factor nnnnn.nnn

8. APIg: API Gravity of Product nn.n

9. Flow: Flow Rate (Average) nnn

10. Temp: Temperature (Average) nnn.n

11. RunI: Run Indicator (Good vs. Bad) aaaa

12. PUL.: Master Meter Raw Pulses nnnnnnnnn

13. VOL.: Master Meter Volume nnnnnnn.nnn

14. Ovol: Observed Vol. or MUT Vol. nnnnn.nnn

15. Corr: Correction Factor MUT n.nnnn

16. NetV: Net Volume nnnnnnn.nnn

17. Coef: Coefficient of Expansion (Meter) n.nnnnnn

Mater Meter Correction Factor Data Table Contents

1. Loc#: Correction Factor Number (1-25) nn

2. Fact: Correction Factor n.nnnn

3. Descriptive Name ( 20 characters)


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN The objective of this section of the manual is to prepare the master meter for use by correcting its accuracy. Certain techniques and practices referred to in this section depend upon a general knowledge of meter proving. If the user is not experienced in meter proving, it is necessary to obtain this general knowledge prior to operation of the master meter. Failure to follow standard practices may result in unreliable results, product spills, or potential for personal injury. The American Petroleum Institute publishes guidelines for meter proving and it is strongly recommended that their publications be reviewed prior to proving the master meter. Prior to use in proving rack meters, the master meter must be calibrated. In the Master Meter Counter, two factors are applied to the pulse train coming out of the master meter. The first factor is the K-factor. This is the nominal pulses per unit volume (gallon or liter) that the meter produces regardless of what product and flow rate is in use. The MMC-9 stores the Master Meter K-Factor in Program Parameter 001. It remains a constant. For the purpose of this example, let us assume a nominal K-Factor of 100 pulses per gallon. The second factor is the M-Factor or Correction Factor as referred to in this manual. The Correction Factor takes into account the specific conditions of the master meter being proven. These conditions primarily include the gravity and flow rate of the product through the meter. Typical Correction Factors are numbers very close to unity. They may be slightly larger than one, or slightly smaller than one. For the purpose of this example, let us assume a Correction Factor of 0.9698. It is this CF value that we are going to determine by proving the master meter. Creating A Master Meter Correction Factor Table As stated previously, the Correction Factor takes into account the dynamics of the product environment. Flow rate and product density affect the pulse count from the meter and there must be a way to compensate for these variations. The Correction Factor allows this. The MMC-9 stores up to twenty-five Correction Factors. The minimum number of factors stored for the master meter is one. How many factors ultimately will be used is dependent upon site configuration, company policy, practicality, and tolerances. Example: A typical products terminal might dispense two distillate fuels and three grades of gasoline. Having five products may dictate that at least five Master Meter Correction Factors be established. The loading rack product meter presets always include two flow rate settings, a low flow rate of about 120 gpm and a high flow rate of 600 gpm. If the loading rack product meter presets can accommodate two factors whos use is dependent upon the flow rate through the meter, then Master Meter Correction Factors are needed for each flow rate. Thus our site requires ten Master Meter Correction Factors. One for each product at two different flow rates. The master meter will require proving at each of the flow rates and in each of the products before it is ready to use. This is commonly done during the normal meter proving cycle at the facility, as the product meters are proven into a volumetric can. Prior to proving, the MMC-9 Master Meter Correction Factor data files should be set up. The setup consists of determining how many factors are needed, as in the example above, and creating names for the factors. There are a maximum of 25 MMCFs possible. The factors are identified as numbers 01 25. The factors and the names are stored in Program Parameters 6nn and 7nn respectively, where nn is the factor number.

Determine the total number of products that require unique Master Meter Correction Factors. This decision is primarily driven by product density variation and its affect on volume.

Determine if one meter factor for the full flow range is adequate or if multiple flow rate factors are needed. This decision is based on rack equipment ( how many meter factors are accommodated) and company policies governing how many are to be used.

Create a descriptive name for each of the MMCFs. You are limited to 20 characters maximum. For our example, we will use: UL GASOLINE - 120GPM.

Modify the Master Meter Correction Factor NAME in Program Parameter 701 to contain the first factor name for your site. Refer to the section on Changing Parameter Values for detailed instructions on this procedure. SUGGESTION: Place the names in the same order as they are going to be used when proving if possible.


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN Creating A Master Meter Correction Factor Table (continued)

The Program Parameter Screen will appear as shown below:

Parameter 701 UL GASOLINE 120GPM

The cursor or blinking rectangle, is initially positioned over the left most character in the NAME. Use the [ v NUMBER ^ ] key to step through the alphabet and change a character. Use the [< CURSOR >] key to move the cursor left and right in the name. When the name has been updated, press the [ ENTER ] key and save the changes. Step to the next Master Meter Correction Factor NAME by using the [ v NEXT ^ ] key.

This completes setting up the Master Meter Correction Factor Table. You are ready to create the factors that are stored by proving the master meter. Mechanical Setup Refer to the drawing in the Appendix titled Proving The Master Meter for a typical setup. The setup for proving the master meter is similar to that used when normally proving the rack meters with a volumetric can. The can should be positioned near the loading arms but slightly forward or behind its normal position to allow for having the master meter cart hooked in-line also. Connect the master meter between the prover can and the loading arm. Make certain that the drain and air vents on the master meter are closed. Electrical Setup IMPORTANT: Connect the MMC-9 to an earth ground point using the supplied ground cable first. Connect the MMC-9 to the master meter using the GC-1000 cable. Connect the temperature probe to the MMC-9 and install it into the thermo-well on the master meter cart. NOTE: The GCT-1 cable is not needed for proving the master meter. Making The Initial Wet Down Run CAUTION: Be certain to follow all recommended practices, policies, and procedures when moving fuel in the loading rack. Failure to do so may result in equipment damage or injury! NOTE: If the facility does not have a written procedure for proving with a volumetric can, it is highly recommended that a copy of the American Petroleum Institute (API) procedure be studied and followed during this process. Because of the limited scope of this document, the steps involved in proving with a volumetric can cannot be completely included here. Specific setup and steps are generalized for the purpose of this procedure. The initial wetting of the master meter and connecting hose should be carefully controlled to prevent shocking or slugging the meter with fuel. A manual valve in the loading arm line should be throttled to limit flow to a very slow flow rate until the master meter, hose, and prover fill piping is liquid full. Do NOT attempt to use the butterfly valve on the master meter cart for this function as it will not protect the master meter. Once the master meter, hose, and prover fill line are liquid full, the manual valve controlling flow can be opened gradually, flushing any residual air from the lines into the prover can. It is desirable to attain full flow rate for a brief time to ensure any entrained air is moved out. Observe the MASTER METER Pulse Light during the product flow to ensure that pulses are being sent to the MMC-9 from the master meter.


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN Making The Initial Wet Down Run (continued) Optionally, the accumulation of pulses in the MMC-9 can be observed during this flow. To do so, perform the following steps:

From the home screen, press the [3] key, selecting the PROVER MODE. The display will change to the following screen:

[PROVER] 1 = TOTALIZER MODE 2 = GATED MODE

Select [1] for TOTALIZER MODE. The display will change to the following screen:

TOTAL [NOT] LOGGED 00000.000 000000 MM PRESS RUN STOP KEY

If the display indicates TOTAL MODE LOGGED then press the [F1] key once to turn off logging. If the display indicates PRESS RESET KEY then press the [RESET] key to clear the

accumulator. Press the [ RUN/STOP ] key. This action gates ON the accumulator and permits the MMC-9 to

collect pulses from the master meter. The display changes to:

TOTAL [NOT] LOGGED 00000.000 000000 MM ENTER KEY TO ACCEPT STOP KEY TO ABORT

The MMC-9 may be left in this mode indefinitely. As line flushing, filling, and wet-down runs are

performed, the registers will accumulate the pulses and display them. The [ RUN/STOP ] and the [RESET] keys can be used to clear the total if desired.

Continue to flow product into the prover can until it reaches the normal sight-glass registration indicator. As this is a wet-down run, the exact volume dispensed is irrelevant. Set one of the following Programming Parameters to match the density of product in the master meter. The density may be entered by putting in the API Gravity (Parameter 036), or the specific gravity (037), or the coefficient of expansion (039). Regardless of which one is changed, the other two parameters will convert to their respective units and change also.

Code Description 036 API Gravity Of Product 037 Specific Gravity of Product 039 Coefficient of Expansion Product

Make certain to change this value each time the product changes in the Master Meter. NOTE: Before continuing the calibration, ensure that Parameter 083 Temperature Compensation is turned ON.


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN Making Correction Factor Runs At this point the equipment is ready to begin calibration and develop a Master Meter Correction Factor.

From the home screen, press the [1] key, selecting the CALIBRATION MODE. The display will change to the following screen:

MM MODE LOGGED 00000.000 000000 MM PRESS RUN STOP KEY

If the display indicates MM MODE [NOT] LOGGED then press the [F1] key once to turn on

logging. Note: The below step is also the starting point for the 2nd and 3rd runs.

If the display indicates PRESS RESET KEY then press the [RESET] key to clear the accumulator.

Press the [ RUN/STOP ] key. This action gates ON the accumulator and permits the MMC-9 to collect pulses from the master meter. The display changes to:

MM MODE LOGGED 00000.000 000000 MM ENTER KEY TO ACCEPT STOP KEY TO ABORT

Do not press any keys at this point. The MMC-9 is ready for the volumetric can to be filled. Follow normal calibration procedures to fill

the can into the visual sight glass. When flow has completely stopped, press the [ ENTER ] key. The display changes to:

Ave. Temp. = nnn.n nnnnn.nnn nnnnn GR nnnnn.nnn nnnnn NT Yes Key To Proceed

Note the readings if desired and press the [YES] key for the next screen. These runs are not

stored in the MMC-9 and it is recommended to record this and the following data gathered during the calibration run.

Enter Average Temperature IN Proving Can = nnn.n

The average prover can temperature is entered into the screen above, followed by the [ENTER]

key. The [< CURSOR >] key will speed data entry, allowing the user to skip preceeding numbers that do not change.


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN Making Correction Factor Runs (continued)

Upon entry, the screen changes to:

Enter: Vol In Can nnnnn.nnn Metered Volume Nnnnn.nnn

The gross prover can volume is entered into the screen above, followed by the [ENTER] key. The

[< CURSOR >] key will speed data entry, allowing the user to skip preceding numbers that do not change.

Upon entry, the screen changes to:

Correction Factor: n.nnnn Yes Key To Proceed

Press [YES], the screen changes to:

MM MODE LOGGED nnnnn.nnn nnnnnn MM PRESS RESET Run n

Make two more filling runs (runs 2 and 3) starting on the previous page. Note: The new Master Meter Correction Factor should be a number very near one (1.0000). If it is not, the user should first examine the Master Meter K-factor (Program Parameter 001) for accuracy. Then the MMC-9 temperature circuitry, and finally, verify the prover can volume and temperature are accurate. Verify both of the Self-Test functions read properly. Upon completing the third run and accepting the correction factor by pressing the [YES] key, the

following screen will appear:

New Master Meter Correction Factor = n.nnnn Save? Yes No

Pressing the [NO] key on the previous screen aborts the run. Pressing the [YES] key accepts the new factor calculated and changes the screen to:

Select New Master Meter Correction Factor Location Enter (1-25) = nn

At this point the user selects one of the 25 correction factor locations to store the new factor in.

The location entered should be the name defined earlier that matches the meter under test.


CALIBRATING THE MASTER METER WITH A VOLUMETRIC CAN Making Correction Factor Runs (continued)

If current factor is the default value (1.0000) the factor is saved and the screen returns to the

Master Meter Proving display. If a non-default value is in the location, the screen changes to:

Over Write The MM Correction Factor? Yes No

Responding [NO] to this question will discard the calibration run information and not change the

Correction Factor. Pressing the [YES] key in response to this question will store the Correction Factor. In either case, the screen returns to the Master Meter Proving display.

Continue to calibrate the master meter for each product and flow rate, placing the Master Meter Correction Factor generated after each run into a unique location (1-25). Remember, accuracy when proving the rack meters starts with the accuracy of the MM Correction Factors.


PRODUCT METER PROVING The user has been taken step by step through the setup and calibration of the Master Meter Counter in the preceding chapters. This chapter will describe the function of actually using the MMC-9 proving system during normal use to prove load rack meters. WARNING: The Master Meter Counter must be properly setup and a Master Meter Correction Factor table built prior to Product Meter Proving with the MMC-9. Failure to successfully complete these steps before proceeding will result in incorrect operation of the unit, with unreliable results. Totalizer Mode There are two methods available to prove loading rack meters. Each method has its own advantages. The Totalizer Mode accumulates pulses and calculates a total volume from the start of a truck compartment through to the end of that compartment. The total volume registered by the meter under test is then entered as the OBSERVED VOLUME. Three compartment runs are accumulated. The MMC-9 then calculates an average CORRECTION FACTOR for the current meter under test, meter factor.

Advantage: When using a single meter factor for the rack meter, this method maintains the highest accuracy. This is because the flow rate ramp-up and ramp-down shift in accuracy is averaged into the factor. Accuracy is best when the volume of fuel used to prove is close to the average compartment size during normal loading.

Disadvantages: It requires three full compartment loads to produce an average factor. In some

operations, this means multiple trucks with the same fuel requirement. When attempting to produce multiple factors for different flow rates, accuracy is

reduced due to the averaging in of the ramp-up and ramp-down shifts. Gated Mode The second method of proving is the Gated Mode. It is in this mode that the MMC-9 exceeds all other methods when comparing speed vs. accuracy. In the Gated Mode the MMC-9 compares pulses from the meter under test and the master meter during a window of flow. Upon command from the user, the MMC-9 begins to monitor the meter under test pulse stream. Upon detection of a pulse from the meter under test, the accumulator for the master meter pulse is Gated on, and begins accumulation. When a preset volume or pulse count is achieved in the meter under test accumulator, the master meter accumulator is gated off. The software then compares the two accumulators and creates a CORRECTION FACTOR for the current meter under test, meter factor.

Advantages: Three runs can be made in a single compartment volume. There is no need for three compartments of a single product to be loaded. Multiple small trucks hauling the same fuel are not needed.

If multiple factors are to be used in factoring the meter under test, this method

automatically produces the single flow rate factor at the required flow rate only. This is due to not averaging the factor over the ramp-up and ramp-down flows.

Disadvantage: Proving occurs at a single flow rate, whatever flow rate is running at the time of the

flow window. Correction Factors The net result of both processes described above is a CORRECTION FACTOR. Depending upon the type of loading rack meter preset in use, one of several methods are utilized to use the new calibration. Each method will be discussed at the end of the step by step procedure.


PRODUCT METER PROVING Consecutive Runs According to API procedures for proving custody transfer meters, new factors for use must be the average of three proving runs. The runs must be consecutive runs. A counter in the MMC-9 keeps track of the number of runs t

he mmc 9 manual 05 may 08

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