accutrak linear - all productsconnected within 18 inches of the enclosure. design features...

AccuTrak Linear Valve Position Monitors

" AccuTrak Position Monitors

" AccuTrak Position Transmitters

" Silver Bullet All Classes & Groups

" Module 3 Nonincendive/Explosionproof

" Series 9900 General Purpose/Nonincendive

" Series 9881 Explosionproof

" EPIC 420 All Classes & Groups

POSITIONMONITORINGFOR LINEARVALVESA

CCUTRAK

"AccuTrak Linear

Valve Monitoring and Control ProductsWESTLOCK

BULLETIN NO. AL-10.00

AccuTrak® Position Monitors

All Classes & Groups

Westlock Valve Position Monitors,in both AccuTrak® and EliminatorTM

configurations, are available for themonitoring of linear valves as wellas rotary valves. Integration ofcomponents into one cost-effectiveunit is rapidly becoming the systemof choice by major industrial usersof process controls.

By combining sensors, solenoids,junction housings and local visualposition monitors in one compactunit suitable for weatherproof and hazardous location service,Westlock offers an extremely efficient method of both monitoringand controlling linear valves.Additionally, the economic advan-tages offered by the NationalElectrical Code, through utilization

of hermetically sealed Magnum®

sensors, are reflected in majorcost savings by the elimination ofhazardous location seal fittings,wiring, conduit and their associatedlabor costs. (see comparative cost analysis)

$PROXIMITY

MECHANICAL

300

200

100

050 100 150 200 250

UNITS

MAGNUM

CONVENTIONAL METHOD vsWESTLOCK MAGNUM

INST

ALLE

D CO

STS

(DOL

LORS

-THO

USAN

D S)

StandardSensorOptions

AMPS3

1.52

VAC120240

VDC

24

SPDT

MAGNUM® Proximity SensorsUL, CSA “Simple Apparatus” (Hermetically Sealed) SPDT Form C

Rotary to Linear Convertors for AccuTrak® and Eliminator®

Configurations

VDC

24

125

250

AMPS10

10

VAC125

250

VAC125

250

AMPS15

15

10

.50

.25

SPDT (V3) DPDT (Licon)

Micro-Switch V3

P+F Kriterium 2000Proximity Type (Solid State), Intrinsically Safe, PTB, FM, CSA, CE

3mmD.C. Voltage 2 wire in accordance with DIN19234 (NAMUR)Approx 5%1.5 KHz8 VDC5-25 VDCCam Trigger Present: ≤1mACam Trigger Absent: ≥3mA (15mA max.)-25°C to +100°C

Sensing RangeElectrical Version

HysteresisSwitching FrequencyNominal VoltageInput Voltage RangeOutput/Current Consumption

Operating Temp.

"AccuTrak Linear


Westlock reserves the right to change product designs and specifications without notice, and is not responsible for errors and omissions.

! Available for on-off linear valves, mod-ulating control valves and knife gatevalves.

! Switch options include Micro-Switch® ,Magnum®, GO®, P&F®, and Effector®.

! 0-100% position transmitters in either resistive or current (4-20mA) configurations.

! NEMA 4, 4X, 7, 9, UL, CSA, FM,listings for Hazardous Area applications.

! Housings in aluminum, engineeredresin and stainless steel configurations.

MAGNUM SENSORS

$403$100N/R*N/R*N/R*N/R*

$503$125,750

MECHANICALSWITCHES

$550$100$50$40$20

$170

$830$207,500

PROXIMITYSWITCHES

$630$100$50$80$30

$270

$1160$290,000

2 switches w/ bracketrysolenoidjunction boxseal fittings wire, conduitlabor

TOTAL COSTTOTAL COST (250 Valves)

*Not Required Solenoid: Asco 8320A90Comparative costs were based upon list prices from major manufacturers.

CONVENTIONAL METHOD WESTLOCK

LINEARCONTROLVALVE

Merging Technology with EconomyUL/CSA Listed Valve Position Monitors for Nema 4, 4X, 7, 9; Class 1, Groups C & D, Class II, Groups E, F & G, Divisions 1 & 2, Class I, Groups A & B, Division 2.

NATIONAL ELECTRICAL CODE (1987):

Article 501-5(a) & (b). Conduit Seals,Class I, Division 1 & 2.In each conduit run entering an enclosurefor switches which may produce arcs,seals shall be placed no more than 18inches from such enclosures.

Exception: Conduit runs 1 1/2 inchesand smaller entering an explosionproofenclosure for switches need not besealed if the current-interrupting contacts are enclosed within a chamber hermetically sealed against the entranceof gases or vapors.

Note: For conformance to UL and CSA require-ments, all conduit runs in Class I, Division 1 hazardous locations must have a sealing fittingconnected within 18 inches of the enclosure.

DESIGN FEATURES

COMPARATIVE COST ANALYSIS (Magnum Sensors)

PO EN

0PEN TouchSetTM CamsCams, secured by set screws, continually lose calibration due to vibration inherent in all pipelines. Self-locking TouchSetTM cams are fastened to a splined shaft and can be set by hand in seconds. Since there are no set screws, the cams will never slip out of adjustment.

BeaconTM

An impact and corrosion resistant valveposition monitor capable of displayingexact valve position from any quadrantat distances of up to 150 feet.

Prewired Terminal BlockPrewired terminal blocks are numbered and color-coded.Generous working space for wiring.

"AccuTrak Linear


AccuTrak® Position Monitors


Position Transmitters forAccuTrak Linear Valve Position Monitors

AccuTrak® Position Transmitters


Westlock transmitter options com-bine local visual display with remoteelectronic signaling for continuousflow device status. Point-to-pointlimit switch signaling is integratedwith on-site visual monitoring and full range analog position transmission in one compactNEMA 4, 4x, 7 & 9 enclosure.

Available in three separate configurations (analog resistive,analog current, or digital sensingwith analog current output),Westlock transmitters offer complete travel range display forcontinuous remote monitoring. The RS, CS, and DT options monitor control valves throughout a 0-100% range. At full open orclosed, switches will additionallyconfirm end position limit.

RS: A 1000 ohm or 10,000 ohmanalog resistive output proportionalto valve position.

CS: A 4-20 mA or analog currentoutput proportional to valve position. The CS current transmit-ter features the latest technologyin solid state transmitter designand delivers one of the lowestoperating voltages in the industry(5 VDC) with a maximum loadresistance of 1650 ohms at 38volts DC.

0-100% PositionTransmission Resistive Output Signal Current Output Signal

Standard Output Signal: 1000 ohms

Power Rating at 70°C: 1 watt

Elements: Conductive Plastic

Rotational Life (no load): 100,000 cycles

Standard Output Signal: 4-20 mA DC, 2 wire

Power Requirements: 5-38 VDC

Max. Load Resistance at 24 VDC: 950 ohms

Operating Temperature: -24°C TO 85°C

Note: For detailed transmitter specifications, see page A-41 of AccuTrak rotary section.

"AccuTrak Linear



DIMENSIONS (inches/mm)

Drive Arm

2"

6.63"

3.49"

2.37"

For Fisher Size 30 thru 87 ActuatorsDT: Westlock has merged absoluteencoder sensing technology withloop-powered analog transmission to create the Spectrum DT full-range position monitor. Establishinga new performance standard, thecommunication mode continues tobe the standard 4-20 mA analogsignal while actual sensing isachieved by a true digital sensor.

The Spectrum DT PositionTransmitter derives its operatingpower from the 4-20mA loop itself,with no need for an external powerconnection. This is a high-level signal not easily affected by outsidenoise. In addition to the advantagesof standardization, reduced fieldwiring costs and immunity frommost electrical noise, the 4-20mAtransmitter offers these benefits:

! Any number of signal receiverscan be series-connected into thesignal circuit without upsetting calibration.

! Multiple transmitters may sharethe same power supply.

! A 4-20mA signal is a "live zero"signal, which distinguishes aprocess condition (4mA) from anopen circuit condition (OmA).

! No position loss on power down.

! Operates in electrically noisy environments.

ROTARY TO LINEAR CONVERTORS

Order standard AccuTrak/Eliminator Models and specifyRotary to Linear Convertor.

Also, please specify ActuatorManufacturer and Model Number.

ORDERING GUIDE (Position Monitors & Transmitters)

"AccuTrak Linear


AccuTrak® Position Transmitters


Silver BulletTM


Linear Valve Position Sensors

In 1981, a change appeared in theNational Electrical Code in the formof an exception for conduit runs of 1 1/2 inches and smaller:"Apparatus which may producearcs or sparks need not be sealedif the current interrupting contactsare enclosed within a chamberhermetically sealed against theentrance of gases or vapors." Thisexception in the Code offered largesavings by the elimination of costlyexternal seal fittings.

Silver BulletTM

The utilization of Magnum SilverBullet hermetically sealed sensorsis not only cost-effective but addscircuit reliability in the form of corrosion resistance and contactintegrity. By utilizing hermeticallysealed sensors in lieu of pottedswitches, up-front costs arereduced $300 per single installation and extend to a totalsavings of $30,000 per one hundred control valves.

Aero ❍ Sensor

All Magnum Silver Bullet Sensorsshare the same fundamentaltechnology as the aerospaceexpertise found in the positionverification systems of satelliteantennas and space shuttle TV cameras.

EnvironmentCareful consideration was given tothe environment in which the sensorwill operate. Caustics, acids, chlo-rides and saltwater can be a dailyoccurrence. The Silver Bullet, sup-ported by UL and CSA HazardousLocation, Division 1 & 2 certifica-tion, isolates these critical interiorcontact areas from moisture andcorrosion intrusion. Housed in a316 stainless jacket, the highly corrosion-resistant tungsten con-tacts are hermetically sealed in aninert atmosphere, then encapsulat-ed in a plastic coating to cushionthe sensor in case of shock andvibration and then re-encapsulatedin a premium grade polymerimpervious to moisture, chemicalsand solvents. Contact reliability is maintained against the adverseeffects of transients through thesensors inherent capabilities ofwithstanding momentary surges of up to 5 amps.

CommitmentOur confidence in this product isreflected in our decision to firmlystand behind the Silver Bullet withan unconditional five year warranty.A warranty that confirms our commitment to excellence in theperformance of your equipment.

"AccuTrak Linear


"AccuTrak Linear


Silver BulletTM

2 switches junction boxseal fittings wire, conduitlabor

TOTAL COST

$322$50$80$30

$270

$752

2 sensors junction boxseal fittings wire, conduitlabor

TOTAL COST

$264$50

N/R*$15

$125

$454

CONVENTIONAL METHOD MAGNUM SILVER BULLETTMPotting Hermetic Seal

* Not RequiredComparative costs were based upon list prices from major manufacturers.

COMPARATIVE COST ANALYSIS

National Electrical Code (1987):

Article 501-5(a) & (b).Conduit Seals, Class I, Div. 1 & 2

In each conduit run entering an enclosure for switches which may producearcs, seals shall be placed no more than 18 inches from such enclosures.

Exception: Conduit runs 1 1/2 inches and smaller entering an explosion-proof enclosure for switches need not be sealed if the current-interrupt-ing contacts are enclosed within a chamber hermetically sealed against theentrance of gases or vapors.

Note: For conformance to U.L. and CSA requirements, all conduit runs in Class 1, Division 1 hazardous locations must have a sealing fitting connected within 18 inches of the enclosure.

AdjustableTrigger

Fieldset Arm

FieldsetTM Triggering System

Start-UpAll of a sensors capabilities are made and broken atthe contact point. Sensors that are set for positionat the factory do not always remain that way afterarriving in the field or being connected to pipelinesand conduit systems. Final field adjustment is usually a difficult task when sensors are firmly heldin place by rigid conduit. A simply engineered slide-action FieldsetTM arm takes this fact into consideration by providing a unique double upper and lower trigger for ease of final field setting.

MaintenanceAll Silver Bullets are bolted to heavyduty stainlesssteel brackets. Sensor triggering is accomplishedby stainless steel encapsulated ferromagnetic actu-ators. Eventually, as valve seats wear, a slightreadjustment of position sensors becomes neces-sary. The FieldsetTM triggering system allows fastresetting by the simple turning of a bolt rather thanthe disconnecting of rigid conduit systems.

Silver BulletTM

TECHNICALSPECIFICATIONS

Hermetically Sealed:

High Current:

Full Metal Jacket:

Agency Certification:

Repeatability:

Hysteresis:

Trigger:

Operational Life:

corrosion-resistant / cost-effective

3 amps /120VAC; 2amps /24VDC

316 stainless steel

UL, CSA, NEMA 4, 4X, 7, 9Class I, Groups A, B, C, D; Class II, Groups E, F, G; Div. 1 & 2

.005 in.

.040 in.

Ferromagnetic (stainless steel encapsulated)

600,000 cycles (full rated load)

MATERIALS OFCONSTRUCTION

Solid Tungstun Contacts600,000 cycles (full rated load)

Full Metal Jacket316 Stainless Steel

Hermetically Sealed Capsule

Epoxy ResinPotting

TargetFerromagneticActuation

UL / CSA Haz. Loc:Cert. Nema 4, 4X, 7, 9All Classes & Groups,Divisions 1 & 2

"AccuTrak Linear


"AccuTrak Linear



.624"15.8mm

Ø

1.00"A.F. ON HEX25mm 5/8"- 18 UNF-2A

THREADSX 1.50" LONG

1/2" - 14 NPTCONDUIT OUTLET

1.18"30mm

1.50"38mm

2.18"55mm

3.75"95mm


Full Metal Outer Jacket:Hermetic Seal:Coating:Potting:Contacts:NEMA Rating:IP Rating:Temp. Range (oF):Operational Life:Sensor Actuation: Sensing Distance:

316 Stainless SteelGlass (vacuum)Acid / Alkali ResistantEpoxy ResinTungsten1, 3, 4, 4X, 6, 7, 9, 12, 1365, 67-40oF to 220oF 600,000 cycles (full rated load)Ferromagnetic (stainless steel encapsulated)0.100" (2.54mm) end sensing

Suggested Specification

SILVER BULLETTM

Valve position sensors shall beWestlock Controls Silver Bullet Model_______. Sensor shall be Hermeticallysealed (UL & CSA Recognized) andrated at 3 amps/120 VAC, 2 amps/24 VDC, with FieldsetTM triggeringmechanism. 316 Stainless Steel housing shall meet all NEMA 4, 4X, 7,9 requirements having as standard one1/2" conduit entrance.

TestingEvery electrical component in everySilver Bullet is 100% tested at incominginspection and every unit then receivesa final, complete functional test.

Warranty5 year unconditional warranty

Contact Arrangement:Contacts:Current Rating:Agency Certification:

Operating Time:Initial Contact Resistance:Repeatability:Hysteresis:Conduit Connection:Leads:Contact Ratings:

SPDT, Form C (normally open), DPDT Form CC (normally open)Solid Tungsten3 Amps / 120 VAC, 2 Amps / 24 VDC

Underwriters Labs, Canadian Standards, NEMA 4, 4X, 7, 9 Class I, Groups A, B, C & D. Class II, Groups E, F & G, Division 1 & 2

3.0 m Sec..50 ohms (Max).005 in..040 in.1/2" - 14 NPTFactory Sealed with 18" minimum, 4 conductor PVC insulated

SPDT. Form C (Normally Open) 3 amps/120 VAC, 2 amps/24 VDCWire: 4 conductor, 18AWG.

DPDT. Form CC (Normally Open) 3 amps/120 VAC, 2 amps/24 VDCWire: 7 conductor, 18AWG.

Bracket:Hardware:Actuation Trigger:Sensing Distance:Trigger Arm:

Stainless SteelStainless steelFeromagnetic (stainless steel encapsulated).100" (2.54 mm) end sensingDual FieldsetTM Adjustment

ADAPTION

ELECTRICAL

MECHANICAL

SILVER BULLET

MODEL

316SPDT

MODEL

316DBDPDT

316 Stainless SteelNEMA 1, 3, 4, 4X, 6, 7, 9, 12, 13UL Listed, CSA certified 4, 4X, 7, 9Hazardous Location Class I, Groups A, B, C, D; Class II, Groups E, F, & G; Divisions 1 & 2

ORDERING GUIDE

Silver BulletTM


Module3®

Nonincendive /ExplosionproofDesigned with a clear-sighted con-cept of true monitoring proficien-cy, each component is engineeredto safely interact with every othercontrol element. The high-currenthermetically sealed sensors aremanufactured of 316 stainlesssteel. The NEMA 4, 4X, 7, 9Hazardous Location enclosure issupported by UL and CSA certifica-tion. The optional ASCO® solenoid is an integral part of the unit andhas been tested as such by UL andCSA under explosive conditions.

Magnum SensorsThe Silver Bullet supported by UL and CSA Hazardous Location,Division 1 and 2 certification offersthe process industry the kind ofcorrosion resistance and high-current capacity required in theindustrial environment. Rated at3 Amps, 120 VAC and 2 Amps,24 VDC, the Magnum Silver Bulletis first hermetically sealed and thansafely encased in a 316 stainlesssteel housing.

Integrated Linear Valve Monitoring

A cost effective,integrated systemthat both monitors and controls valveposition.

OSHA Acceptable Triggering System

Designed with safety intelligence,the Module3, OSHA Acceptabletriggering system meets all of therequirements for conformance tothe Code of Federal RegulationsSection 1910.219. Noting thenecessity to increase safety withinthe process industry, Westlock has redesigned the conventionalmethod of tripping switches (theutilization of exposed metal arms)into a unique system; a systemhaving no component projectbeyond the largest periphery of theshaft collar. All outside edges aresmoothly rounded and all screwsare countersunk so that nothingprotrudes beyond any moving surface. Double recessed upperand lower triggers offer fingertipcontrol for ease of sensor setting.

Knife Gate ValvesThe MOD3 has been expanded toinclude the monitoring and controlof knife gate valves. Combinedwith the Magnum Silver Bullet, theMOD3/Silver Bullet combinationoffers the process industry a versatile range of optional config-urations for position sensing andsolenoid actuator control. Eachassembly is UL and CSA certifiedand suitable for use in NEMA 4,4x, 7, 9, Class I, Groups B, C &D, Class II, Groups E, F & G,Division 1 & 2 and Class I, GroupA, Division 2 hazardous areas.

"AccuTrak Linear


Module3®

Technical Specifications

OSHAAcceptable

Hazardous Location EnclosureUL/CSA Certified

High-current hermetically sealed 316 SSMagnum sensor

OSHAAcceptabletriggering system

10 point pre-wired terminal block

Comparative Cost Analysis

The Module3 applies the economicadvantages offered by the NationalElectrical Code. which states, “In hazardous locations, apparatuswhich may produce sparks need not be sealed if the current inter-rupting contacts are enclosedwithin a hermetically sealed chamber.” Through the utilization of hermetically sealed Magnumsensors, substantial savings arerealized by the elimination of costlyseal fittings. Integration of all components into a single housingprovides additional savings throughthe elimination of junction boxes,wiring and labor.

*Not Required Comparative costs were based upon list prices from major manufacturers.(Solenoid: Asco 8320A90)

CONVENTIONAL METHODPotted Switches

MODULE3

Hermetically Sealed Sensors

2 switchesjunction boxsolenoid valveseal fittingswire, conduitfield labor

TOTAL COST

MODULE3 w/bracket junction boxsolenoid valveseal fittingswire, conduitfield labor

TOTAL COST

$322$65

$100$80$70

$340

$977

$442N/R*$100N/R*N/R*N/R*

$542

"AccuTrak Linear


Housing

Hermetic Seal

Temp. Range

Operational Life

Sensor Actuation

Sensing Distance

Agency Certification

Operating Time

Initial Contact Resistance

Repeatability

Hysteresis

Contact Ratings

Warranty

316 Stainless Steel

Glass (vacuum)

-40°F to 220° F

600,000 Cycles (full rated load)

Ferromagnetic (stainless steel encapsulated)

0.100" End Sensing

UL, CSA

3.0 m Sec.

.50 Ohms (max.)

.005 in.

.030 in.

SPDT Form C (Normally Open)3 Amps / 120 VAC,2 Amps / 24 VDC

5 Year Unconditional

MAGNUM SENSOR

Certified for hazardous andhighly corrosive areas.

MATERIALS OFCONSTRUCTION

Solid Tungstun Contacts600,000 cycles (full rated load)

Full Metal Jacket316 Stainless Steel

HermeticallySealed Capsule

Epoxy ResinPotting

TargetFerromagneticActuation

UL / CSA Haz. Loc:Cert. Nema 4, 4X, 7, 9All Classes & Groups,Divisions 1 & 2

"AccuTrak Linear


Module3®

3.36

3.5089

85SQ.

4.25

114

108

4 HOLES1/4"-20

TOP VIEW SIDE VIEW

1.538

4.5


ORDERING GUIDE

MATERIALS OF CONSTRUCTION CONDUIT ENTRY OPTIONSHousing

Coating

Conduit Entries

Terminal Strip

Aluminum

Double Polyurethane

2-3/4” (3-3/4” optional)

10 contacts

APPROVALS / CERTIFICATIONUL (Underwriters Laboratories, Inc.)

CSA (Canadian Standards Association

MODULE32-SPDT Sensors*

Triggering System(OSHA Acceptable)

MODULE3 for Knifegate Valves2-SPDT Sensors*

ASCO Solenoid**

Nema 4, 4x, 7 & 9Class I, Groups B, C & DClass II, Groups E, F & G, Div. 1 & 2Class I, Group A, Div. 2

Nema 4, 4x, 7 & 9Class I, Groups B, C & DClass II, Groups E, F & G, Div. 1 & 2Class I, Group A, Div. 2

Nema 4, 4x, 7 & 9Class I, Groups B, C & DClass II, Groups E, F & GDivisions 1 & 2Class I, Group A, Div. 2

Nema 4, 4x, 7 & 9Class I, Groups B, C & DClass II, Groups E, F & GDivisions 1 & 2Class I, Group A, Div. 2

To Be Specified byCustomer

Please specifyActuator andModel Number

Stainless Steel

3479

E34792-SPDT Sensors w/ Solenoid

B

A

C

Model 3479: A & B Standard (3/4" NPT)Model E3479: A (solenoid) & B Standard

(A: 1/2" NPT Male, B: 3/4" NPT)

Please specify if optional conduit entries are required. (C)

Suggested Specification MOD-ULE3

Valve position monitor shall be WestlockControls Module3 Model __________.Sensors shall be Magnum, Hermeticallysealed (UL & CSA Recognized) and ratedat 3 amps/120 VAC, 2 amps/24 VDCwith OSHA acceptable triggering system.Complete assembly shall be UL & CSAcertified for Class I, Groups B, C & D,Class II, Groups E, F & G, Divisions 1 & 2.

Solenoid Transition Coupling (1/2” NPT) Model E3479 Only

AREA CLASSIFICATIONS

Nema 4, 4x, 7, 9Class I, Groups B, C, DClass II, Groups E, F, G, Divisions 1 & 2Class I, Group A, Division 2

+

+

E3479 + 3162-SPDT Sensors w/ Solenoid

*The Mod3 is also available with solid-state sensors rated for Intrinsically-safe applications. Please contact factory for IS Options.**Hazardous area ratings of solenoid must meet Classes and Groups for intended use.

3479+

316


"AccuTrak Linear


Module3®


AccuTrak® 9900

General Purpose /Nonincendive

Engineered For The Monitoring And Control OfSanitary Diaphragm Valves

The 9900 Series offers anextremely compact, efficient andeconomical means of monitoringand controlling sanitary diaphragmvalves. By combining three separateproducts into one pre-integratedunit; junction housing, position sensors and solenoid valve, thehigh cost of wiring, seal fittingsand field labor is totally eliminated.

Designed for NEMA 4, 4x; Class I,Group A, B, C, D; Class II, Group F,G; Division 2 hazardous area applications, the 9900 enclosure is of a high integrity nylon resin forprotection against caustic, alcoholor detergent washdowns.

Engineered Resin Enclosure

An FM approved nylon enclosurewith local visual indicator assuresboth strength and corrosionresistance. Extra conduit entrancesallow for integration of solenoidvalves.

TouchsetTMTriggers

Thumbscrew triggeradjustments eliminate setscrews and provide instantaneoushand setting of position sensors.

9 Point Terminal Block

9 pt. slide-out terminal block provides for simplicity of wiring and integration of local solenoid valves.

Magnum® ProximitySensors

Hermeticallysealed against explosive gasses and liquids, Magnum sensors provide maximumresistance against moisture and corrosion. Each sensor is rated at3A/120 VAC, 2A/24 VDC.

AMPS

3

1.5

2

VAC

120

240

VDC

24

SPDT

StandardSensorOptions

MAGNUM® Proximity SensorsHigh Current Proximity Sensor, SPDT Form CUL, CSA (Hermetically Sealed)

Micro-Switch V3 SPDT Form C, UL, CSA

SPDT Form C

15A,125/250 VAC • 10A, 24 VDC • .5A,125 VDC

.25A, 250 VDC

-25°C to +148°C

Electrical Version

Electrical Characteristics

Operating Temp.Gold plated contact available (“Simple Apparatus” - I.S. applications)

"AccuTrak Linear


AccuTrak® 9900


ACTUATOR

3.2582

TOP VIEW

3.25

ACTUATOR

1/2" NPT (MALE)

3/4" NPT

84

50

82

Mounting Plate 3/16"

4.76mm

SEE NOTE

1.95

3.31

TOP VIEW

3/4" NPT(2 Places)

ACTUATOR

3.2582

3.2582

84

50

Mounting Plate 3/16"

4.76mm

SEE NOTE

1.95

3.31


3.25"

SLIDE-OUTTERMINALBLOCK

MAGNUMSENSORS

TOUCHSETTRIGGERS

3.31"

VISUALINDICATORTOP VIEW

CROSS-SECTION SIDE VIEW

CONSTRUCTION & DIMENSIONAL DATA

ACCUTRAKTMORDERING GUIDE

ELIMINATORTM with Solenoid* Solenoid Valve

To Be Specified by Customer*

NEMA

NEMA

NEMA

*Hazardous area ratings of solenoid must meet Classes and Groups for intended use.

FM (Factory Mutual Research)

CSA (Canadian Standards Association)


Nema 4, 4x Nonincendive

Class I, Groups A, B, C, D, Div. 2

Class II, Groups F, G, Div. 2

ENCLOSUREConduit Entries

Terminal Points

2- 3/4 NPT

9 Points standard

APPROVALS / CERTIFICATION

EliminatorTM E9900Enclosure: Nylon Resin

AccuTrakTM 9900Enclosure: Nylon Resin

NOTE: For units withvisual indicators, overallheight is dependentupon stroke of actuator.

NOTE: For units with visual indicators, overallheight is dependent upon stroke of actuator.

99182 Mechanical SPDT Switches

NEMA 4, 4X

99202 Magnum SPDT Sensors

NEMA 4, 4X, NonincendiveClass I, Grps. A, B, C, D, Div. 2Class II, Grps. F,G, Div. 2

E99182 Mechanical SPDT Switches

NEMA 4, 4X

E99202 Magnum SPDT Sensors

NEMA 4, 4X, NonincendiveClass I, Grps. A, B, C, D, Div. 2Class II, Grps. F,G, Div. 2

MATERIALS OF CONSTRUCTION

Enclosure Nylon Resin

"AccuTrak Linear



AccuTrak® 9881

Explosionproof

Engineered for theMonitoring and Control ofSanitary Diaphragm Valvesin Explosionproof Areas

The Westlock Accutrak /Eliminator 9881 is specificallyengineered for the monitoring andcontrol of sanitary diaphragmvalves. Certified to UL and CSA,the 9881 series utilizes high current, hermetically sealedMagnum® proximity sensors thateliminate the costly requirementsof installing seal fittings in Division2 hazardous areas while add-itionally providing the high level ofcorrosion resistance required bytoday's process industries.

Designed for NEMA 4, 4x, 7, 9applications, the 9881 enclosureis a high integrity aluminum housing with a polyurethaneenamel coating for protectionagainst caustic, alcohol or detergent washdowns. As anoption, an aluminum housingencapsulated in nylon is availablefor full compliance with the safetyclearances issued by the FDA foruse in food processing applications.

The 9881 Series offers anextremely efficient and economicalmeans of monitoring and control-ling sanitary diaphragm valves. By combining three separateproducts into one pre-integratedunit; junction housing, positionsensors and solenoid valve, the high cost of terminationenclosures, wiring, seal fittingsand field labor is totally eliminated.

MagnumSensors

High Integrity Enclosure

Aluminum housing, with polyurethaneenamel coating, assures bothstrength and corrosion resistance.Extra conduit entrances allow forintegration of solenoid valves.

Magnum® ProximitySensors

Hermeticallysealed againstexplosive gasses and liquids,Magnum sensors provide maximumresistance against moisture andcorrosion. Each sensor is rated at3A/120 VAC, 2A/24 VDC.

TouchsetTM Triggers

Thumbscrew triggeradjustments eliminateset screws and provideinstantaneous hand setting of position sensors.

Terminal BlockAn easily accessible 8-pointprewired, numbered and color-coded terminal block is provided for simplification of wiring.

1 2

3 4

5 6

7 8

Contact Arrangement

Contact Ratings

Initial Contact Resistance

Seal

Approvals

Temperature Range

Operational Life

Repeatability

Warranty

SPDT, Form C (Normally Open)

3 Amps/120 VAC, 2 Amps/24 VDC

.50 ohms (Max)

Hermetic

UL, CSA

-40°F to +185°F

600,000 Cycles (full rated load)

.005 inches

5 Year Unconditional

"AccuTrak Linear



1084.25

4 HOLES.20 DIA.CLEARANCE

TOP VIEW

3

4.25

3/4" NPT(2 Places)

ACTUATOR

3.36

108

85

765"/127mm

Mounting Plate.25 / 6.35

1" required for removal of cover

SQ.

ACTUATOR

1/2" NPT (MALE)

3/4" NPT

1" required for removal of cover

85

1084.25

4 HOLES.20 DIACLEARANCE

TOP VIEW

3

4.25

5"/127mm

Mounting Plate.25 / 6.35

ACTUATOR

108

76

3.36 SQ.


ACCUTRAKTM2-SPDT Sensors

ELIMINATORTM2-SPDT Sensors with Solenoid*

Solenoid Valve

To Be Specified by Customer*

NEMA


Nema 4, 4x, 7, 9

Class I, Groups B, C, D,

Class II, Groups E, F, G, Div. 1 & 2

Class I, Group A, Div. 2

EliminatorTM E9881Enclosure: Aluminum

AccuTrakTM 9881Enclosure: Aluminum

9881Class I, Groups B, C & DClass II, Groups E, F & G,Divisions 1 & 2Class I, Group A, Div. 2

E9881Class I, Groups B, C & DClass II, Groups E, F & G,Divisions 1 & 2Class I, Group A, Div. 2

NEMA

NEMA

*Hazardous area ratings of solenoid must meet Classes and Groups for intended use.

UL (Underwriters Laboratories Inc.)

CSA (Canadian Standards Association)

APPROVALS / CERTIFICATION

ENCLOSUREConduit Entries

Terminal Strip

2 - 3/4”

8 contacts standard

MATERIALS OF CONSTRUCTION

Housing

Cover

Coating

Shaft

Aluminum

Aluminum

Polyurethane Optional: NylonEncapsulated

Stainless Steel

ORDERING GUIDE

"AccuTrak Linear


AccuTrak® 9881


EPIC® 420

Nonincendive / Explosionproof

Non-Contact Position Monitoringfor Linear Control Valves

Output

Terminal Voltage Req.

Linearity

Span Adjustment

Zero Adjustment

Resolution

Hysteresis

4 to 20 mA nominal, proportional to stem position.

14.5 to 35 Volts DC, Reverse polarity protected.

± 1% maximum deviation from straight line.

0.5" to 1.25" stroke, continuously adjustable. Longerstrokes available upon request.

± 30% of calibration span, considered centered whenmagnet travel range is centered on valve strokerange. Continuously adjustable.

Infinite.

Negligible.

Temperature Range

Temperature Effect

Humidity

Voltage Effect

Reverse Polarity

Mounting Attitude

Output Update Rate

Startup Stabilization

-20°F to 185°F.

Less than .01%/°F, combined zero and spaneffect, at full span.

10% to 90%, non-condensing.

Less than 0.1% for any voltage within the range of 14.5 to 35 volts.

Protected from damage by internal diode.

Any position.

Nominally 20 times per second.

Within 4 seconds of power application.

Power Supply Requirements

TechnicalSpecifications

1200

1000

800

600

400

200

0

1025

0 10 20 30 40 50

14.5 V 35 V

LO

OP

RE

SIS

TA

NC

E C

AP

AB

ILIT

Y (

OH

MS

)

MAXIMUM SUPPLY VOLTAGE

OPERATINGRANGE

Non-Contact Position TransmitterThe EPIC® non-contact position transmitter represents a significantdeparture from previous attempts to reliably measure stem position of linear control valves. As opposedto conventional devices, no linkages,levers, rotary or linear seals are utilized. A static slide-by actuationassembly, attached to the valve stem,is the only "moving" part in the entiretransmitter. Sensing is performedtotally by non-contacting means,based upon characterization of fluxstrength as a function of axial position.

A solid state sensor is employed,whose output is a function of bothflux density and excitation voltage.That property allows the use of aninternal bridge circuit for highly accurate zero adjustment, where onearm of the bridge is comprised of thesensor, and the other comprised of aresistive divider for zero reference.

Transmitter output is 4-20 mA,2 wire, with compliance voltageranging from 14,5 to 35 volts.Output updating takes place 20times per second, allowing use of the transmitter for applicationsheretofore not possible with transmitters of other types. Theinherent reliability of the transmitterpermits use of advanced controlstrategies, where knowledge of valveposition can be used in predictiveand other algorithms.

*NOTE: Foe linear graphs displaying deviation from straight line (0.4” to 20”) see technical manual #374

4-20mA

"AccuTrak Linear



EPIC®ORDERING GUIDE

420Aluminum:Class I, Groups B, C & DClass II, Groups E, F & G, Div. 1 & 2Class I, Group A, Div. 2

MATERIALS OF CONSTRUCTIONHousing

Cover

Aluminium

Aluminium

APPROVALS / CERTIFICATIONUL (Underwriters Laboratories, Inc.)CSA (Canadian Standards Association)


Nema 4, 4x, 7, 9

Class I, Groups B, C, D

Class II, Groups E, F, G, Divisions 1 & 2

Class I, Group A, Division 2


4.25108

4 HOLES1/4"-20 x 3/8"ON 3.36 SQ.

4.75

OPTIONALSOLENOID

TOP VIEW

STANDARD: 1-3/4" NPTCONDUIT ENTRANCE

121

3.62 92

1.65

SIDE VIEW

3/4" NPT

42

Predictive DiagnosticsEPIC® provides operating personnelthe capability of bringing a higherdegree of intelligence to the final control element. On-board electronicsallow remote monitoring and diagnos-tics that continuously monitor controlvalve positioning performance, allowingcomparison with the ideal. Reportingof deviations affords plant personnelthe ability to detect problems beforethey become serious enough to trig-ger an alarm or shutdown.

Need For Diagnostic CapabilityIn terms of diagnostics, one of themost common problems in controlvalves is a form of "stickiness" developing in the packing or guidebushings.

In addition, most pneumatic actua-tors do not provide infinite positioning"stiffness". That is, a sudden decreaseof force required to stroke the valvewill cause the actuator to strokefurther than intended with the actuator air signal held constant.

In practice, the mass of actuator and valve moving parts is low enoughthat a rapid "jump" in position willoccur due to the fall in friction at theonset of stroking. The "jump" is rapidenough that the positioner cannot correct quickly enough to prevent theresulting overshoot.

As age, wear, and other factors taketheir toll, the "jump" effect often be-comes more pronounced. The resultingovershoot may become severe enoughthat the positioner continually tries tocorrect the situation, resulting in aconstant "hunting" condition.

Early Detection and DiagnosticsWith proper signal processing, theEPIC transmitter is ideal for detectingthe onset of such effects. Early diagnosis allows maintenance or othercorrective action to be scheduled;therefore avoiding a severe problem.The key in detection lies in determina-tion of maximum rate of positionchange, or alternatively, in a comparisonbetween rate of change of position signal and the actual position change of the valve.

Rate of valve position change may bedetermined by taking EPIC transmitterreadings at finite intervals, perhapsonce per second. The change in position during each interval may becompared with a maximum allowablevalue. In essence, the techniquedescribed here amounts to taking afirst time derivative of position bynumerical means.

"AccuTrak Linear


EPIC® 420

IndexPosition MonitorsPosition TransmittersSilver BulletModule 3AccuTrak 9900AccuTrak 9881EPIC 420

accutrak linear - all productsconnected within 18 inches of the enclosure. design features...

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