Varec 4532 manual Spot, VH28 Lower Limit

Page 44

Operation and Description of Instrument Function	Average Temperature/Water Bottom Sensor and Converter

2.0°C 2.0°C 2.0°C 2.0°C 3.0°C 3.0°C 3.0°C

3.5°C 3.5°C

= V (volume factor)

Element #5: 4.5°C (T5)

Element #4: 4.0°C (T4)

Element #3: 2.0°C (T3)

Element #2: 3.0°C (T2)

Element #1: 3.5°C (T1)

(3.5°C x 2 + 3.0°C x 3 + 2.0°C x 4) / (2 + 3 + 4) = 2.67°C

Spot

The same number of elements (resistance and material) are located in each input cable in the probe. Average calculation is performed based on the sum of submerged element temperature values / total number of element submerged.

to Converter

Pt100 element #5:

24.5°C (T5)

Pt100 element #4:

24.0°C (T4)

Pt100 element #3:

26.0°C (T3)

PT100 element #2:

25.5°C (T2)

Pt100 element #1:

25.0°C (T1)

input signal cable

Probe end

Gas (Vapor) phase

Liquid Level

Liquid phase

Liquid average temperature = (T1 + T2 + T3) / 3 = 25.5°C

VH28 Lower Limit

Item type: read and write

Default value: -20.5°C

RANGE: -999.9°C ~ 999.9°C

Low limit temperature alarm setpoint.

34	Installation and Operations Manual

Image 44

Contents Installation Page Copyright Disclaimer of Warranties Safety Precaution Definitions Safety Precautions Average Temperature/Water Bottom Sensor and Converter Contents Operation and Description of Instrument Function Index Varec, Inc Contents Installation and operation overview IntroductionIntroduction Software historySystem functional diagram HartSafety instructions Power supply WiringGrounding ReturnDirect voltage Safety instructions Scope of delivery IdentificationDevice designation Nameplate CE marks, declaration of conformity Installation Design, dimensionsRecommended procedure Incorrect procedure Flexible tube UnpackingInstallation Instructions Special conditions for safe useInstallation Mounting Mounting instructionMounting on a fixed roof tank Top anchor methodTensioning wire mounting Thermo well method Thermo well applicationAnchor weight method Flexible tube is stabilized by an anchor weightAnchor weight mounting Mounting on a floating roof tank Thermo well method Guide ring and anchor weight method 10Guide ring and anchor weight applicationMounting Wiring Terminal Connection 1 4532 ATC terminal2 6000 Series Servo Tank Gauge terminal 3 4590 TSM i.s. terminal4532 ATC Grounding Wiring Device set up 4590 TSM OperatingLocal Hart connection As a Varec tank gauging instrument As a standalone generic Hart instrument4532 ATC specific parameter set up on the 4590 TSM Device set up 6000 Series Servo Tank Gauge2 4532 ATC configuration on 6000 Series Servo Tank Gauge Preparation of 6000 Series Servo Tank GaugeGVH480 Diagnostic GVH447 Reference ZeroGVH449 Reference GVH450~459 Temp No.1~10Operating Temperature measurement Primary values VH00 ~ VH09 Operation and Description of Instrument FunctionHart Device designation Device DataElement Temperature 1 VH10 ~ VH15 Element Temperature 2 VH20 ~ VH29Advanced Spot VH28 Lower LimitVH46 Hysteresis Width Item type read and write Default 10mm VH29 Upper LimitVH48 Gas Offset VH49 Liquid OffsetWB Adjustment and Operation Power VH60 ~ VH69 VH53 Element Point Item type select DefaultVH55 Element Volume Item type read and write Range 1 ~ WB primary and Advanced temp VH50 ~ VH59Temperature Adjustment VH70 ~ VH79 VH71 Zero AdjustVH72 Adjust Span VH69 Ref VoltageVH73 Temperature VH74 PositionVH75 Resistance VH76 Resistance AdjVH79 Protect Code VH81 Temperature Unit VH80 Present ErrorError code VH82 Element Number VH83 No. of PreamblesVH84 Distance Unit VH85 Kind of IntervalDevice setting 2 VH90~VH99 VH88 Short ErrorVH89 Open Error VH90 Device ID Number Item type read and write DefaultVH92 Error Dis. Sel VH94 Polling AddressVH95 Manufacture ID VH96 Software VersionMaintenance Exterior cleaningRepairs Repairs to Ex-approved devicesReplacement GVHTroubleshooting System error messagesSpare parts 1Spare PartsAnchor weight Low profile AccessoriesAnchor weight Tall profile Wire hook, Top anchor 3Wire hook dimensionTechnical data Technical data at a glanceTechnical data Order Structure Process connection SUS304Order Structure Declaration of Contamination Declaration of Contamination FormDeclaration of Contamination Form Index Index 4532 Your official representative Your offical representative