Fisher 244EH Appendix, A Reference Data, TRANSMITTER SPECIFICATION Functional, Inputs, Output

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Appendix

Appendix

A Reference Data

TRANSMITTER SPECIFICATION

Functional

Transmitter Specification . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-6 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-9

Inputs

User selectable using the Model 244EC Configuration Interface and the Models 244EH and 244ER configuration software; sensor terminals rated to 42.4 V dc. See Table A-2 on page A-3.

Output

Two-wire 4–20 mA, linear with temperature for RTDs and thermocouples, and linear with input for millivolts and ohms

Isolation

Input to output isolation tested up to 500 V ac rms (707 V dc) at 50/60 Hz

Power Supply

External power supply required. The transmitters operate on 12.0 to

42.4V dc terminal voltage. Transmitter power terminals rated to

42.4V dc.

Load Limitations

 

 

 

 

 

 

Maximum Load = 43.5 3 (Supply Voltage – 12.0)

 

 

1322

4–20 mA dc

 

 

 

 

 

 

 

 

 

(Ohms)

1000

 

 

 

 

 

750

 

 

 

 

 

 

 

 

 

 

 

Load

500

 

Operating

 

24401A-244

250

 

Region

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

10

20

30

40

42.4

 

 

12.0

Supply Voltage (V dc)

 

 

 

 

 

 

Ambient Temperature Limits

Operating

Storage

–40 to 85 °C (–40 to 185 °F)

–50 to 120 °C (–58 to 248 °F)

A-1

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Contents Models 244EH and 244ER PC-Programmable Temperature Transmitters 00809-0100-4737 English Rev. EAPage 00809-0100-4737 Rev EA 10/00 Product ManualModels 244EH and 244ER PC-Programmable Temperature Transmitters ¢00809-0100-4737f¤Page Troubleshooting Table of ContentsInstallation Maintenance andApprovals APPENDIX AReference Data APPENDIX BSAFETY MESSAGES Section1 Introduction MANUAL OVERVIEW Electrical CONSIDERATIONSGeneral MechanicalPage SAFETY MESSAGES Warnings 2 InstallationTOOLS NEEDED FOR INSTALLATION The tools needed for installation are as followsFigure 2-1. Transmitter Installation Flowchart Example MOUNTINGMounting a Model 244EH to a DIN Rail Special Mounting ConsiderationsINSTALLATION PROCEDURES TransmitterHead Mount Transmitter with DIN Plate Style Sensor Head Mount Transmitter with Threaded Sensor Figure 2-6. Typical Model 244EH Transmitter Mounting ConfigurationUsing Threaded Style Sensor and Assembly6. Run sensor lead wires from the sensor assembly to the transmitter Figure 2-7. Typical Rail Mount Transmitter Mounting ConfigurationUsing Integral Mount Sensor and Assembly To complete the assembly, follow the procedure described below644-0000A04B Rail Mount Transmitter with Threaded SensorConfiguration Software Multichannel InstallationsSystem Requirements Choose the procedure that matches the operating system you are using Procedure for Windows 3.1 or Windows for WorkgroupsProcedure for Windows 95 or Windows NT Model 244EC Configuration Interface Setting Up the Model 244EC Configuration InterfaceScreen Conventions Figure 2-10. Complete Transmitter Configuration System FIELD WIRINGRTD or Ohm Inputs Sensor ConnectionsTotal cable length = 150 m Sensor Lead Wire Resistance Effect RTD InputExamples of Approximate Lead Wire Resistance Effect Calculations GivenThermocouple or Millivolt Inputs Figure 2-13. Transmitter Power, Sensor, and Configuration Terminals FAILURE MODE Changing Switch Positions3 Operation POWER SUPPLY Surges/TransientsGrounding CONFIGURATIONConfiguring a Single Transmitter Figure 3-1. Models 244EH and 244ER Configuration Software MainConfiguration Window Configuring Several Transmitters Identically Viewing the Process Variable INTERMITTENT SENSOR ALGORITHMFigure 3-2. Viewing the Process Variable with the 244EC Threshold Value2% of Output Range Case ExamplesCase 1 Open Sensor Case 2 Temperature Change Greater than theCase 3 Temperature Change Within the Threshold Value 2 % of Range Intermittent Sensor Algorithm and Dampingcontinues to approach the input curveaccordingto theequation above Intermittent Sensor Detect Advanced Feature2.0 seconds, the transmitter outputs the reading that corresponds to the damping curve at that time , and continues to calculate andImplementation Transmitter Behavior with Intermittent Sensor Detect ONTransmitter Behavior with Intermittent Sensor Detect OFF Page 4 Maintenance and Troubleshooting SAFETY INFORMATIONTROUBLESHOOTING Model 244EH software version TABLE 4-1. Models 244EH and 244ER Troubleshooting ChartError Message Cause and Possible SolutionsPower Supply TRANSMITTER SPECIFICATION FunctionalAppendix A Reference DataCE Electromagnetic Compatibility Compliance Testing PerformanceUpdate Time Power Supply EffectInput AccuracyTABLE A-2. Model 244E Input Options and Accuracy SensorAmbient Temperature Effect Transmitters can be installed in locations where the ambientMaterials of Construction PhysicalWeight Electrical ConnectionsHead ORDERING INFORMATIONModel Product DescriptionPart Description TABLE A-5. Model 244EC Configuration Interface Ordering InformationTABLE A-6. Transmitter Accessories Typical Model Number 244ECTagging Standard ConfigurationCustom Configuration Unless specified, transmitter will be shipped as followsModel 244ER DIMENSIONAL DRAWINGS TransmitterEnclosure and Model 244EC Configuration Interface Configuration InterfacePage B Approvals HAZARDOUS LOCATIONS INSTALLATIONSLOCATIONS CERTIFICATIONS Factory Mutual FM ApprovalsCanadian Standards Association CSA Approvals Standard Australia Quality Assurance Service SAA KEMA ApprovalsSpecial Conditions for Safe Use Gostandart INSTALLATION DRAWINGSInstallation Drawing Rev. AB Figure B-1. Canadian Standards Association CSA Intrinsic SafetyFigure B-2. Canadian Standards Association CSA Explosion-Proof Installation Drawing Rev. AA00644-0009, Rev. AA Figure B-3. Factory Mutual FM Intrinsic Safety Installation Drawing00644-1049, Rev. AB Figure B-4. Factory Mutual FM Explosion-Proof Installation DrawingC Models 644 and 244E Temperature Transmitters Manual Supplement Models 644H and 244EH Transmitter Design Sensor Wiring Diagrams Special MountingOLD TRANSMITTER ConsiderationsUse with an Existing DIN Plate Style Sensor NEW TRANSMITTERConsiderations HART Communicator Model 644H only 2. Select 1 Off-line, 1 New Configuration, Rosemount, 644 TempEntity Parameters SPECIFICATIONSBASEFFA1 Intrinsically Safe Installation Entity Parameters Factory Mutual3Index Wiring Page Product documentation available at