Fisher 244EH, 244ER manual Section, Introduction, Safety Messages

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Section

Section

1 Introduction

SAFETY MESSAGES

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1 Transmitter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1 Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

Procedures and instructions in this manual may require special precautions to ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol (1 Introduction). Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol.

Failure to follow these installation guidelines could result in death or serious injury.

Make sure only qualified personnel perform the installation.

TRANSMITTER OVERVIEW Thank you for choosing the Model 244E. Features of the Model 244EH and Model 244ER transmitters include:

Configuration using the Model 244EC Configuration Interface and a Microsoft® Windows®-based PC running the Models 244EH and 244ER Configuration Software

The ability to convert RTD and thermocouple inputs to 4–20 mA, 2-wire outputs that are less susceptible to electrical noise

The capability to linearize RTD and thermocouple inputs with temperature

Electrical input-output isolation

Electronics that are completely encapsulated in epoxy and enclosed in a metal housing, making the transmitter extremely durable and ensuring long-term reliability

A compact size and two housing options allowing mounting flexibility for the control room or the field

Rosemount Inc. has a full range of compatible connection heads, sensors, and thermowells to provide complete assemblies for process temperature measurements. Refer to Volume 1 of the Rosemount Temperature Sensors and Assemblies Product Data Sheet (document number 00813-0100-2654) for thread mount sensors and accessories, or refer to Volume 2 (document number 00813-0100-2654) for DIN-style sensors and accessories.

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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 BSection SAFETY MESSAGES1 Introduction MANUAL OVERVIEW Electrical CONSIDERATIONSGeneral MechanicalPage SAFETY MESSAGES Warnings 2 InstallationThe tools needed for installation are as follows TOOLS NEEDED FOR INSTALLATIONFigure 2-1. Transmitter Installation Flowchart Example MOUNTINGMounting a Model 244EH to a DIN Rail Special Mounting ConsiderationsTransmitter INSTALLATION PROCEDURESHead 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 SensorMultichannel Installations Configuration SoftwareSystem Requirements Procedure for Windows 3.1 or Windows for Workgroups Choose the procedure that matches the operating system you are usingProcedure for Windows 95 or Windows NT Setting Up the Model 244EC Configuration Interface 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 CONFIGURATIONFigure 3-1. Models 244EH and 244ER Configuration Software Main Configuring a Single TransmitterConfiguration Window Configuring Several Transmitters Identically INTERMITTENT SENSOR ALGORITHM Viewing the Process VariableFigure 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 andTransmitter Behavior with Intermittent Sensor Detect ON ImplementationTransmitter Behavior with Intermittent Sensor Detect OFF Page SAFETY INFORMATION 4 Maintenance and TroubleshootingTROUBLESHOOTING 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 INSTALLATIONSFactory Mutual FM Approvals LOCATIONS CERTIFICATIONSCanadian Standards Association CSA Approvals KEMA Approvals Standard Australia Quality Assurance Service SAASpecial 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