maintenance power point show

8/4/2019 Maintenance Power Point Show

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ROUTINE SETTING-UP, TESTING AND

MAINTENANCEOF THE DIFFERENT MEASURING DEVIC



Set up:This tachometer is factory calibrated for 8 cylinder

engines. For operation on 4 or 6 cylinder engines, aswitch adjustment must be made.



Testing:

a. Shut engine off if possible,b. Note vehicle battery polarity.c. Set the dwell switch to the positioncorresponding to the number of cylinders in thevehicle.d. Set the ground switch to the positioncorresponding to the polarity of the battery

ground.e. Attach the RED battery lead to the positiveterminal of the battery and the BLACK battery

lead to the negative terminal of the battery.



Set-up :

The green wire reads the electrical pulses fromthe ignition. For most standard ignitions itconnects to the distributor primary or negative

(-) side of the ignition coil.



The torque transducers may be mounted inany position. In the case of horizontalmounting, make sure that the installed flangedplug is not pointed downwards. The transfer ofthe torque is by frictional joints at the bothends of the shaft.

1. Mounting Position



2. Fastening the housing

The torque transducers have very little bearingfriction. Therefore, it is sufficient to secure thehousing against co-rotation. For this purpose,

there is an M4 threaded bore in the housing intowhich an appropriate stop (e.g. a threaded rod)can be screwed. The transducers with measuring

ranges of 100Nm and 200Nm have no suchthreaded bore.



The nominal torques may be staticallyexceeded by max. 50%. If the nominal torqueis exceeded, additional irregular loading is

not permissible; this refers to longitudinalforces, lateral forces and bending moments.

3. Loading Capability



Maintenance:

The torque meter is to a large extent designed tobe maintenance free. Only the slip rings andcarbon brushes are subject to slight wear, whichmust be monitored. For reasons of functionalsafety, the carbon brush dust should be removedfrom the housing of the transducer. To do this,

remove the cover screwed on at the side andcarefully remove the carbon dust or dirt presentusing a fine brush and dry compressed air.



Viscometer

A viscometer (also called viscosimeter ) is aninstrument used to measure the viscosity of

a fluid. For liquids with viscosities which varywith flow conditions, an instrument called arheometer is used. Viscometers only measureunder one flow condition.

http://en.wikipedia.org/wiki/Viscosity

http://en.wikipedia.org/wiki/Fluid

http://en.wikipedia.org/wiki/Flow_conditioning

http://en.wikipedia.org/wiki/Rheometer

http://en.wikipedia.org/wiki/Rheometer

http://en.wikipedia.org/wiki/Flow_conditioning

http://en.wikipedia.org/wiki/Fluid

http://en.wikipedia.org/wiki/Viscosity



Set-up :

1) Assemble the laboratory stand. (Refer to picture.)



3. Verify that the viscometer's powerrequirements match your power source beforeconnecting it to power.

4. For Cone/Plate models, refer to picture



Testing:

The process of choosing a spindle and rotationalspeed for use with your viscometer is ultimately

one of trial and error. This will help to ensure testresults are accurate and repeatable. Theobjective is to choose a spindle that will produce adial or digital display reading between 10% and100% torque. You can check the accuracy of yourViscometer by performing a calibration check.



a ntenance:

There are three different methods for

cleaning the internal components ofViscometer. The Clean-in-Place method, whichis typically used, provides minimal downtime

and effective cleansing of the viscometerduring process system cleaning. The Flushingmethod is used when additional internalviscometer cleansing is required. TheDisassembly and Cleaning method is usedwhen the process system is seriouslycontaminated and the viscometer cannototherwise be cleaned.



PH Meter

A pH meter is an electronic instrument usedfor measuring the pH (acidityor alkalinity) of aliquid (though special probes are sometimes

used to measure the pH of semi-solidsubstances). A typical pH meter consists of aspecial measuring probe (a glass electrode )connected to an electronic meter thatmeasures and displays the pH reading.

http://en.wikipedia.org/wiki/PH

http://en.wikipedia.org/wiki/Acid

http://en.wikipedia.org/wiki/Base_(chemistry)

http://en.wikipedia.org/wiki/Glass_electrode

http://en.wikipedia.org/wiki/Glass_electrode

http://en.wikipedia.org/wiki/Base_(chemistry)

http://en.wikipedia.org/wiki/Acid

http://en.wikipedia.org/wiki/PH



1. Set the pH/mV switch on the pH meter to

the mV position.

2. Connect a shorting plug to the input on thepH meter, or connect a precision mV generatorwith a 0 mV input. Adjust the standardize/zerocontrol on the pH meter for a reading equal to0.0 mV.

3. Disconnect the shorting plug/precision mVgenerator, and connect the electrode that will

be tested.



4. Insert the electrode and the ATC (automatictemperature compensator) in 7.00 pH buffersolution. Allow 30 seconds for the electrode/ATCto reach thermal equilibrium with the buffersolution. Record the polarity and the mV reading.This is the asymmetry potential of the electrode.A perfect electrode would have an A.P equal to 0

mV, but most electrodes read between ±30 mV.



Regular cleaning will maximize electrode

performance and ensure a longer working life. Somesuitable cleaners are:

• Organic contamination - use mild liquid detergent,acetone*, methylated spirit or toluol*. If toluol isnecessary, rinse subsequently with acetone ormethylated spirits and finally water.

• Inorganic contamination – use dilute nitric orhydrochloric acid.

Maintenance :



DissolveOxygenMeter

Dissolve oxygen meter is known as O2 sensors.They help determine, in real time, if theair fuel ratio of a combustion engine is rich orlean. Since oxygen sensors are located in theexhaust stream, they do not directly measurethe air or the fuel entering the engine

http://en.wikipedia.org/wiki/Air_fuel_ratio

http://en.wikipedia.org/wiki/Air_fuel_ratio



Set-up:

The Dissolved Oxygen Meter allows users tocustomize the display and ensure accurate results.Access Setup mode by pressing the SETUP/CE key

located in the lower right hand corner of the keypad.The SETUP icon and a flashing 1 will appear in theupper right hand corner of the display. The flashing

number indicates the setup available for adjustment.Use the up or down arrow keys to move from onesetup to another.



Testing :

The meter will beep under certain conditionsonce properly set-up:• when a non-functional key press is made (onebeep)• when measurement stability is reached duringcalibration(three beeps)

• in reading mode, when the display lock isturned on and stability is reached.



The meter is designed to be maintenance-free. If the meter gets dirty, wipe the

surface with a damp cloth. Use a cotton-tipped applicator to clean or dry theconnectors if they get wet.

Maintenance :



Relative HumidityMeter

Relative Humidity Meter(hyrometer) is aninstrument used for measuring the moisturecontent in the environmental air, or humidity.

http://en.wikipedia.org/wiki/Humidity

http://en.wikipedia.org/wiki/Humidity



Set-up:



1. Remove any excess insulation from theduct that prevents the probe fromextending a minimum of 3 in. (76 mm)into the air stream.

2. Use the hole saw to make a 1 in.(25.4 mm) diameter hole in the ductfor inserting the probe.

3. Pull the plastic cover off the housing.



Testing :1.Connect the ARH2 relative humidity Head to

digital multimeter V- W and COM terminals. Forthe stick meter, snap over top of meter. Forother meters, use ADL2 deluxe test leads.

2. Set the multimeter to mVDC range.

3. Bring sensor to equilibrium. This may take afew minutes.

4. Directly read RH% or °F indicated on the

display (multiply by 1000 if using the 2V range).



CO2 analyzer

Here you will find gas analyzers that meetindustry standards relating to personal safetyand that are mainly used to detect and measurelevels of methane, hydrogen sulphide, carbonmonoxide, oxygen and 50 other gases.



Maintenance :

Keep the analyzer clean by wiping it with a softcloth dampened with a mild detergent solution.The unit should not be left out in direct

sunlight, or in other areas where excessive heatexists, for long periods since component damagedue to overheating may result.



Oxygen analyzer

Oxygen Analyzer is an electronic device that

measures the proportion of oxygen (O2) in thegas or liquid being analyzed.

http://en.wikipedia.org/wiki/Oxygen

http://en.wikipedia.org/wiki/Oxygen



Set-up:

To use your Oxygen Analyzer, first installthe batteries, then install the oxygen sensorand then, calibrate the analyzer using the

steps.

Sensor Installation:

1. Remove the new sensor from its protectivebag. Inspect the sensor for damage orelectrolyte leakage.



2. Plug one end of the coiled cable into thereceptacle on the back of the sensor and secureit in place with the capture nut located at thebase of the connector.

3. Plug the other end of the cable into thereceptacle located on the side of the unit and

secure it using the capture nut.



Testing :

1. Plug the power lead into the Analyzer andinto the power point.

2. Turn on the power at the power point.

3. Screw the sample pipe onto the 1/8”

Swagelok tube connector, on the righthand side of the Analyzer.



4. Wait 10 minutes for the oxygen sensor toget over 700°C.



Maintenance :

The oxygen analyzer requires very littlemaintenance, other than calibration, checkingthe batteries and sensor. Occasional cleaningof the plastic surface can be done withisopropyl alcohol. There are no user-serviceable components within the analyzer.



Vibration Monitor

The main purpose of vibration monitor is tomeasure, record, and analyze the vibration levelsat a specific location. From this we are able todetermine the possible effect of these vibrationsand confirm that the vibration levels are belowthe specified threshold.



Set-up :Input Parameters

Parameters are loaded inthe monitor with the free

software. The process iseasy and includes a step-by-step guide. The PC or

laptop is connected tounit with the RS232 setupcable. USB and Ethernetadapters are available



Install Sensor

It is designed to bepermanently mounted on a

pump, motor, spindle, orfan. The monitor has tobe mounted in a radialdirection to the axis ofthe shaft rotation. Thevibration transmissionrate can be checked withan impulse tester.



Teach Baseline

After mounting themonitor, press the Teachbutton. Octavis will learnthe reference baselinefor normal operatingconditions. The earlywarning alarm (yellow) andcritical alarm (red) willtrigger if there is a large

change from the baseline.



Explosive GasDetector

A gas detector is a device which detects thepresence of various gases within an area,

usually as part of a safety system. This typeof equipment is used to detect a gas leak andinterface with a control system so a process

can be automatically shut down.

http://en.wikipedia.org/wiki/Gas

http://en.wikipedia.org/wiki/Gas



The vibration sensor is

most sensitive parallelto the mounting bolt.

Mount vibration sensoron both sides of engineblock.



Mount vibration sensor on a rigid location on thecooler frame closer to centerline of fan shaft.

Mount vibration sensors on engine block and

compressor frame.



Testing :

In order to ensure the safe and accurateoperation of Portable Gas Detectors, they needto be periodically calibrated against reference

test gases that are traceable to NationalPhysical Laboratory standards. Therecommended calibration period for Status

Scientific Controls gas detectors is six monthsalthough the frequency may need to be increasedwhere continual exposure to the target gases is

experienced.



Between calibrations it is also recommended

that the response of the detector ischecked using an appropriate test gascylinder. These cylinders are available in'large aerosol' form and may be suppliedindividually or as part of a Field CalibrationKit.



Maintenance :

Most gas detectors are either battery-operated, or have a battery back-up system fora 110-volt electrical power supply. Often, thereis a “test” button on the gas detector that willallow you to make sure that the detector’s alarmand batteries are working properly.



Smoke

DensityDetector

Detects and measures the amount of light blockedin smoke emitted by diesel engines from cars,trucks, ships, buses, motorcycles, locomotives andlarge stacks from industrial operations. The smoke

meter readout displays the smoke density giving ameasure of the efficiency of combustion.



Set-up:



Testing:



Maintenance :

A routine maintenance schedule is recommendedto assure clean lens of the light source, receiverand pressure sealing flanges. The frequency of lenscleaning should be determined for each installationand will depend on the existing ambient conditions.The lamp in the light source should be scheduledfor annual replacement. The calibration of the

system should be rechecked following lampreplacement.



Oil MessDetector

Monitors and detects oil spills as they occur inreal-time accelerates response time. It graphicallypinpoints the location of the spill, andautomatically denotes the type of fluid spilled bymatching the frequency of the fluid detected

within the known range of spectral signatures



Smoke Detector

A smoke detector is a device that detectssmoke, typically as an indicator of fire.Commercial, industrial, and mass residential

devices issue a signal to a fire alarm system ,while household detectors, known as smokealarms, generally issue a local audible and/orvisual alarm from the detector itself.

http://en.wikipedia.org/wiki/Smoke

http://en.wikipedia.org/wiki/Fire_alarm_system

http://en.wikipedia.org/wiki/Alarm

http://en.wikipedia.org/wiki/Alarm

http://en.wikipedia.org/wiki/Fire_alarm_system

http://en.wikipedia.org/wiki/Smoke



Set-up:

Mount smoke detectors high though the ceilingmount is preferable, as they will go off sooner.Place it 4-12 inches from the ceiling and in turn,mount ceiling detectors 4 inches from the wall.Smoke rises, so if you have a odd-shaped ceiling,opt for the highest point on the ceiling to placethe detector.



Testing:Have someone go to a part of the house farfrom the smoke detector as possible whenconducting a function test, to determinewhether the alarm can be clearly heard at that

distance. It has to be loud enough to awakenthe deepest sleeper.To test whether the unit will actually work in a

fire, you will need a small spray can of smokedetector test aerosol.



Maintenance:

Try changing the batteries and cleaning thedetector to remove any dust that may beblocking the openings.



Heat Detector

A heat detector is a fire alarm device

designed to respond when the convictedthermal energy of a fire increases thetemperature of a heat sensitive element.

S



Set-up:

Mounting of the detector



There are 4 conducting pieces on the orientation

base, each carrying a terminal with number. Thedetector bus in the wiring tube can be connectedwith any two diagonal conducting pieces “1” and“3”. “2” is for anode of the remote LED and “4” isfor the cathode. These are used to fix thedetector accessorily.



Testing:

Warning: Power up only after all the detectorshave been installed.

1. The detector must be tested by simulationfire half a year in order to check thedetector works normally.

2. After testing, reset the detector throughfire alarm control panel. Notify the properauthorities the system is back in operation. If

the detector fails in the test, please



Maintenance:

Maintain your heat detector by changing thebatteries at least every 6 months. Ensure itcontinues working properly by wiping it with adry cloth every time you change thebatteries, to keep dust from accumulating onthe sensors.



Flame Detector

Flame detectors are optical equipmentfor the detection of flame phenomenaof a fire.



Set-up:

The ame detector will detect res atdistances of up to 40 metres, but the amesize at such distances needs to be

proportionally greater in order to be sure



Maintenance:

Any built up dust or oil film on the surfaceof the UV tube will significantly reduce its’

sensitivity. The exposure of the UV tubeshould be cleaned at its’ surface at regularintervals; half-yearly under normalenvironments). In cleaning, take care thatno undue force is applied to the UV tube.)



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