Rosemount FISHER-ROSEMOUNT 244EH Скачать руководство пользователя страница 7 | Manualshive

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CONSIDERATIONS

General

Electrical temperature sensors such as RTDs and thermocouples
produce low-level signals proportional to their sensed temperature. The
Models 244EH and 244ER transmitters convert the low-level sensor
signal to a standard 4–20 mA dc signal that is relatively insensitive to
lead length and electrical noise. This current signal is then transmitted
to the control room via two wires.

Mechanical

When choosing an installation location and position, take into account
the need for access to the transmitter.

Wiring Connections

Make wiring connections through the cable entry in the side of the
connection head. Be sure to provide adequate clearance for
cover removal.

Electrical

Proper electrical installation is necessary to prevent errors due to
sensor lead resistances and electrical noise. Shielded cable should be
used in electrically noisy environments.

Environmental

The transmitter electronics module is permanently sealed within the
housing, resisting moisture and corrosive damage. Verify that the
operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.

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Содержание FISHER-ROSEMOUNT 244EH

Страница 1: ...Models 244EH and 244ER PC Programmable Temperature Transmitters 00809 0100 4737 English Rev EA ...

Страница 2: ...marks of General Electric Microsoft Windows Windows 95 and Windows NT are registered trademarks of Microsoft Corp MINIGRABBER is a trademark of Pamona Electronics WAGO is a registered trademark of Kontakttechnik GmbH Cover photo 644 244C901 NOTICE Read this manual before working with the product For personal and system safety and for optimum product performance make sure you thoroughly understand ...

Страница 3: ...11 Field Wiring 2 12 Sensor Connections 2 13 Failure Mode 2 16 Changing Switch Positions 2 16 SECTION 3 Operation Safety Messages 3 1 Warning 3 1 Power Supply 3 1 Surges Transients 3 1 Grounding 3 2 Configuration 3 2 Configuring a Single Transmitter 3 3 Configuring Several Transmitters Identically 3 4 Viewing the Process Variable 3 5 Intermittent Sensor Algorithm 3 5 Case Examples 3 6 Intermittent...

Страница 4: ... Transmitter A 9 Enclosure and Model 244EC Configuration Interface A 9 APPENDIX B Approvals Safety Messages B 1 Hazardous Locations Installations B 1 Locations Certifications B 2 Installation Drawings B 4 APPENDIX C Models 644 and 244E Temperature Transmitters Manual Supplement Old Transmitter C 2 Transmitter Design C 2 Sensor Wiring Diagrams C 2 Special Mounting Considerations C 2 New Transmitter...

Страница 5: ...le 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 m...

Страница 6: ...face Section 2 Installation Tools for installation Mounting Installation Field wiring Section 3 Operation Power Supply Configuration Section 4 Maintenance and Troubleshooting Software Troubleshooting Appendix A Reference Data Specifications Dimensional drawings Ordering information Appendix B Approvals Locations certifications Installation drawings Appendix C Models 644 and 244E Temperature Transm...

Страница 7: ...tion take into account the need for access to the transmitter Wiring Connections Make wiring connections through the cable entry in the side of the connection head Be sure to provide adequate clearance for cover removal Electrical Proper electrical installation is necessary to prevent errors due to sensor lead resistances and electrical noise Shielded cable should be used in electrically noisy env...

Страница 8: ......

Страница 9: ...e the enclosure cover in explosive atmospheres when the circuit is live Verify that the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations certification Enclosure covers must be fully engaged to meet explosion proof requirements Process leaks could result in death or serious injury Install and tighten thermowells or sensors before applying pressure or pr...

Страница 10: ...re Transmitter Set Sensor Type Set Number of Wires Set 50 60 Hz Filter Set Units Set Range Values Set Damping Field Install Set Failure Mode Switch Mount Transmitter Wire Transmitter Power Transmitter Check for Leaks Done 244 244_02A Models 244EH and 244ER Transmitter Mounting apparatus Model 244EC Configuration Interface Transmitter 9 pin connector cable MINIGRABBER clips Model 244EH and 244ER Co...

Страница 11: ...to isolate the transmitter from excessive temperatures Figure 2 2 provides an example of the relationship between transmitter housing temperature rise and extension length Use Figure 2 2 as a guide for determining adequate thermowell extension length Figure 2 2 Model 244EH Connection Head Temperature Rise vs Extension Length Example The transmitter specification limit is 85 C If the ambient temper...

Страница 12: ... Rail Clip Hardware to a Model 244EH Retrofitting a Model 244EH for Use in an Existing Threaded Sensor Connection Head To mount a Model 244EH in an existing threaded sensor connection head former option code L1 order the Model 244EH retrofit kit part number 00644 5321 0010 The retrofit kit includes a new mounting bracket and all associated hardware necessary to facilitate the installation of the M...

Страница 13: ...unting screws through the sensor mounting plate and insert the snap rings optional part number 00644 4432 0001 into the groove of each transmitter mounting screw 4 Insert the transmitter sensor assembly into the connection head Thread the transmitter mounting screw into the connection head mounting holes 5 Assemble the extension to the connection head Insert the assembly into the thermowell 6 Atta...

Страница 14: ...ents or to satisfy code requirements 4 Set the transmitter failure mode switch see Figure 2 13 on page 2 16 5 Pull the sensor wiring leads through the extensions and adapters into the universal head Mount the transmitter in the universal head by threading the transmitter mounting screws into the universal head mounting holes 6 Mount the assembly into the thermowell Seal adapter threads with silico...

Страница 15: ...ssure 3 Attach the sensor to the connection head and mount the entire assembly to the thermowell 4 Attach sufficient lengths of sensor lead wire to the sensor terminal block 5 Attach and tighten the connection head cover Enclosure covers must be fully engaged to meet explosion proof requirements 6 Run sensor lead wires from the sensor assembly to the transmitter 7 Set the transmitter failure mode ...

Страница 16: ...es and adapters Seal the nipple and adapter threads with silicone tape 4 Screw the sensor into the thermowell Install drain seals if required for severe environments or to satisfy code requirements 5 Screw the connection head to the sensor 6 Attach the sensor lead wires to the connection head terminals 7 Attach additional sensor lead wires from the connection head to the transmitter 8 Attach and t...

Страница 17: ...ng minimum PC requirements must be observed 80386 or faster processor 1 MB free disk space 3 5 inch floppy disk drive Mouse or other pointing device 256 color display recommended settings are 16 bit color at 1024 728 screen resolution Microsoft Windows 3 1 Windows for Workgroups 3 11 Windows 95 or Windows NT The configuration software is available in English French German Italian Spanish Chinese J...

Страница 18: ...nect the Model 244EC Click OK 8 The SELECT PROGRAM MANAGER GROUP window appears To accept the default Program Manager group name click OK To specify a different group name either type a new name in the GROUP NAME text box or select one from the list Click OK Procedure for Windows 95 or Windows NT 1 Insert the Models 244EH and 244ER Configuration Software diskette into your floppy disk drive 2 Clic...

Страница 19: ...iguration Interface All necessary power is provided through the configuration leads from the Model 244EC to the transmitter The sensor does not need to be disconnected in order to configure the transmitter To set up the Model 244EC Configuration Interface and prepare it for use refer to Figure 2 10 on page 2 12 and follow the procedure described below 1 Install the 9 volt battery in the Model 244E...

Страница 20: ...that the voltage across the transmitter power terminals does not drop below 12 0 V dc If the sensor is installed in a high voltage environment and a fault condition or installation error occurs the sensor leads and transmitter terminals could carry lethal voltages Use extreme caution when making contact with the leads and terminals NOTE Do not apply high voltage e g ac line voltage to the transmit...

Страница 21: ...hor the sensor lead wires into the appropriate compression terminals and tighten the screws RTD or Ohm Inputs The transmitters will accept a variety of RTD configurations including 2 wire 3 wire 4 wire and compensation loop designs If the transmitter is mounted remotely from a 3 wire or 4 wire RTD it will operate within specifications without recalibration for lead wire resistances of up to 10 ohm...

Страница 22: ...rror Examples of Approximate Lead Wire Resistance Effect Calculations Given Total cable length 150 m Imbalance of the lead wires at 20 C 0 5 Ω Resistance length 18 AWG Cu 0 025 Ω Ω C Temperature coefficient of copper αCu 0 0039 Ω Ω C Temperature coefficient of platinum αPt 0 00385 Ω Ω C Change in Ambient Temperature Tamb 25 C RTD Resistance at 0 C Ro 100 Ω for Pt 100 RTD Pt100 4 wire RTD No lead w...

Страница 23: ...istance αPt Ro Error due to amb temp variation αCu Tamb Lead Wire Resistance αPt Ro Basic error 7 5 Ω 0 00385 Ω Ω C 100 Ω 19 5 C Error due to amb temp var of 25 C 0 0039 Ω Ω C 25 C 7 5 Ω 0 00385 Ω Ω C 100 Ω 1 9 C Model 244E Sensor Connections Rosemount Inc provides 4 wire sensors for all single element RTDs You can use these RTDs in 3 wire configurations by leaving the unneeded leads disconnected ...

Страница 24: ... parameters To determine the failure mode configuration of a transmitter review the low and high alarm levels on the SERVICE menu provided by the configuration software Changing Switch Positions To change the failure mode on the Model 244EH or 244ER transmitter follow the steps described below 1 If the transmitter is mounted in an enclosure remove the enclosure cover 2 Locate the orange failure mo...

Страница 25: ...The transmitter will withstand electrical transients of the energy level usually encountered in static discharges or induced switching transients However high energy transients such as those induced by lightning strikes welding heavy electrical equipment or switch gears can damage both the transmitter and the sensor To protect against high energy transients install Models 244E into a suitable conn...

Страница 26: ...ocouple the grounded junction serves as this point Do not ground the current signal loop at more than one point NOTE Do not ground the signal wire at both ends CONFIGURATION The Models 244EH and 244ER are designed to be configured using a Model 244EC Configuration Interface connected to a Microsoft Windows compatible PC running the Models 244EH and 244ER Configuration Software program Configuratio...

Страница 27: ... program 3 Select READ FROM XMTR from the menu bar to initiate the transmitter configuration The main configuration window will appear see Figure 3 1 Figure 3 1 Models 244EH and 244ER Configuration Software Main Configuration Window 4 Set the configuration parameters To view a complete list of options for each parameter click the drop down arrow in any parameter box For example on the main configu...

Страница 28: ...s according to a logical system and preserve the default 244 filename extension 7 Click the CANCEL button to close the main configuration window Configuring Several Transmitters Identically To configure several Model 244E transmitters identically perform the following procedure 1 Configure a single transmitter according to Configuring a Single Transmitter on page 3 3 and save the configuration to ...

Страница 29: ...ERMITTENT SENSOR ALGORITHM The electronics of the Model 244E transmitter contains an intermittent sensor algorithm that monitors the input signal during operation The signal diagnostics routine which occurs at each temperature update every 500 milliseconds eliminates output pulsing in an intermittent open sensor condition Further it validates the input signal before the digital to analog D A conve...

Страница 30: ...ed The output changes to reflect this and the transmitter is no longer in a hold period In this case the output delay is 1 75 to 2 00 seconds B If the reading drops back within the original threshold value at Time 0 ms during the hold period the transmitter interprets the reading s outside the threshold value as a spike and the output changes to reflect the latest reading The transmitter is no lon...

Страница 31: ...a The transmitter outputs the corresponding value on the damping curve within 1 75 to 2 0 seconds and updates the output reading every 500 ms thereafter according to the damping equation above At the value to which the damping time constant is set the transmitter output is at 63 of the input change 0 500 1000 1500 2000 2500 3000 3500 4000 Step Changes Greater than Threshold Value Input Time in 500...

Страница 32: ...t signal After validating the input signal the transmitter outputs the value that corresponds to the damping curve at that time Figure 3 3 Damping Function when Input Change is Greater Than the Threshold Value Intermittent Sensor Detect Advanced Feature NOTE The Intermittent Sensor Detect feature is not available when using a Model 244EH with software revision 5 5 1 To determine the software versi...

Страница 33: ...ct feature can be turned ON or OFF using a Model 244E transmitter with software version 5 4 1 or earlier with the Model 244EC software configuration tool when the transmitter is connected to the Model 244EC Configurator Turning the Intermittent Sensor Detect feature OFF does not affect the time needed for the transmitter to output the correct alarm signal after detecting a true open sensor conditi...

Страница 34: ......

Страница 35: ...ct the transmitter to the Model 244EC configurator open the 244EC software configuration tool and then choose Service from the 244EC software menu Model 244EH software version 5 5 1 The configuration of the Intermittent Sensor Detect feature of the Model 244E Temperature Transmitter with version 5 5 1 or greater software cannot be changed with the Model 244EC version 2 0 0 or earlier If you attemp...

Страница 36: ...ilename The file s format may have been corrupted Try reading a backup of the file Error writing to filename The disk may have been corrupted or the filename is not valid Try saving under a different filename Field device did not respond The transmitter did not respond to the inquiry made by the software Verify all connections in the configuration system Verify that the transmitter is functional I...

Страница 37: ...ith 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 4 V dc terminal voltage Transmitter power terminals rated to 42 4 V dc Load Limitations Ambient Temperature Limits Operating Storage 40 to 85 C 4...

Страница 38: ...formance The Models 244EH and 244ER maintain a specification conformance of at least 3s Stability 0 1 of span or 0 1 C whichever is greater over 12 month period Power Supply Effect Less than 0 005 of span per volt Vibration Effect The transmitters tested to the following specifications with no effect on performance CE Electromagnetic Compatibility Compliance Testing The Models 244EH and 244ER meet...

Страница 39: ... 2 of span or 1 0 C Type E NIST Monograph 175 IEC 584 50 to 1000 58 to 1832 25 40 0 1 of span or 0 5 C Type jJ NIST Monograph 175 IEC 584 180 to 760 292 to 1400 25 40 0 1 of span or 0 5 C Type K NIST Monograph 175 IEC 584 180 to 1372 292 to 2502 25 40 0 1 of span or 1 0 C Type N NIST Monograph 175 IEC 584 200 to 1300 328 to 2372 25 40 0 1 of span or 1 0 C Type R NIST Monograph 175 IEC 584 0 to 176...

Страница 40: ...ing b 3 reading of span c 3 span 0 006 0 0000054 3 525 0 00001 3 650 0 015 C per C With the ambient temperature 40 C above reference condition temperature the total ambient temperature effect is 40 3 0 015 0 6 C The worst case error would be Reference Accuracy CJC Accuracy Temp Effects 0 65 C 0 5 C 0 52 C 1 67 C Total Probable Error TABLE A 3 Models 244E Ambient Temperature Effects per 1 C 1 8 F S...

Страница 41: ...ly Recognized Test Laboratory such as FM or UL with a Class 2 output Ambient Temperature Limits 32 to 104 F 0 to 40 C Humidity Limits 0 to 99 relative humidity non condensing Power and Sensor Terminals Model 244EH Compression screws permanently fixed to terminal block Clips permanently fixed to terminal block Model 244ER Compression screw permanently fixed to front panel Clips permanently fixed to...

Страница 42: ...FE tape unwired X3 Assemble Transmitter to a Sensor Assembly wrench tight Teflon PTFE where appropriate fully wired Note If ordering X1 X2 X3 specify the same code on the sensor model number Option codes X1 and X3 are not available with CSA Approvals Hazardous Area Certifications C6 or I6 Enclosure Options Threaded Style Temperature Sensor Users Americas and Asia Pacific Remote Integral Mount J6 U...

Страница 43: ...k MINIGRABBER Configuration Lead C539920001 Red MINIGRABBER Configuration Lead C539920002 Universal Clip for Rail or Wall Mount Model 244ER only 03044 4103 0001 Kit Hardware for Mounting a Model 244EH to a DIN rail includes clips for symmetrical and asymmetrical rails 00644 5301 0010 Kit Hardware for Retrofitting a Model 244EH in an existing Threaded Sensor Connection Head former option code L1 00...

Страница 44: ...nfiguration Tagging Standard Configuration 1 1 All standard configuration settings may be changed in the field with the Model 244EC Configuration Interface Sensor Type RTD PT 100 α 0 00385 4 wire 4 mA Value 0 C 20 mA Value 100 C Damping 5 seconds Failure Mode High Upscale LIne Voltage Filter 50 Hz Tag See Tagging below TABLE A 7 Custom Configuration Requirements Specification Option Code Requireme...

Страница 45: ... 34 1 33 60 2 4 33 1 3 Power Terminals 24 1 0 Threaded Sensor Universal Head option code J5 or J6 1 Integral DIN Style Sensor Connection Head 2 Model 244EC Configuration Interface Dimensions are in millimeters inches 1 A U Bolt is shipped with each universal head unless assembly option code X1 X2 or X3 is ordered However since the head can be integrally mounted to the sensor it may not need to be ...

Страница 46: ......

Страница 47: ...d for non incendive operation Individual transmitters are clearly marked with a tag indicating the approvals they carry To maintain certified ratings for installed transmitters they must be installed in accordance with all applicable installation codes and approval drawings Verify that the operating atmosphere of the transmitter is consistent with the appropriate hazardous locations certification ...

Страница 48: ...ount Drawing 00644 0009 FM Entity Parameters See installation drawing identified on the transmitter approval label and Appendix C Models 644 and 244E Temperature Transmitters Manual Supplement for entity parameters K5 Combination of E5 and I5 NOTE Approval K5 is only available with Model 244EH option codes J5 and J6 Canadian Standards Association CSA Approvals I6 Intrinsically safe for Class I Div...

Страница 49: ... entity parameters Special Conditions for Safe Use X The transmitter must be installed so that its external terminals and communication pins are protected to at least IP20 N1 ATEX II 3 G Type nL Operation Non Incendive Approval Zone 2 only Ex nL IIC T5 Tamb 70 C Type nL certification is only available as a complete assembly with the Rosemount universal head thermometer and thermowell Standard Aust...

Страница 50: ...ociation CSA Ordinary Locations INSTALLATION DRAWINGS The installation guidelines presented by the drawings must be followed in order to maintain certified ratings for installed transmitters Rosemount Drawing 00644 1064 1 Sheet Canadian Standards Association Intrinsic Safety Installation Drawing Rosemount Drawing 00644 1059 1 Sheet Canadian Standards Association Explosion Proof Installation Drawin...

Страница 51: ...B 5 Figure B 1 Canadian Standards Association CSA Intrinsic Safety Installation Drawing 00644 1064 Rev AB ...

Страница 52: ...Rosemount Models 244EH and 244ER PC Programmable Temperature Transmitters B 6 Figure B 2 Canadian Standards Association CSA Explosion Proof Installation Drawing 00644 1059 Rev AA 644 1059A01A ...

Страница 53: ...B 7 Figure B 3 Factory Mutual FM Intrinsic Safety Installation Drawing 00644 0009 Rev AA 644 0009A01A ...

Страница 54: ...Rosemount Models 244EH and 244ER PC Programmable Temperature Transmitters B 8 Figure B 4 Factory Mutual FM Explosion Proof Installation Drawing 00644 1049 Rev AB 644 1049A01A ...

Страница 55: ...tter page C 2 New Transmitter page C 3 Specifications page C 4 This manual supplement is intended to indicate the primary differences between the old and new Models 644 and 244E These differences are as follows Transmitter design Sensor Wiring Diagrams Special Mounting Considerations Specifications ...

Страница 56: ...nd V 4 wire RTD and V T C and mV RTD with Comp Loop 1 Mounting a Model 644H to a DIN Rail G Rail Top Hat Rail 1 Assemble the appropriate rail clip part number 00644 5301 0001 2 Attach the transmitter to a rail or panel 3 Attach the thermowell to the pipe or process container wall and attach sufficient lengths of sensor lead wire Tighten the connection head cover 4 Run the sensor lead wires from to...

Страница 57: ...r to recognize an RTD with a compensation loop 1 2 3 4 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 2 wire RTD and V 3 wire RTD and V 4 wire RTD and V T C and mV 1 RTD with Comp Loop 644 0000B01C Use with an Existing DIN Plate Style Sensor 1 Secure the bottom of the mounting screw sleeve with pliers Remove the mounting screws and springs 2 Once the springs are removed use the new transmitter mounting screws to a...

Страница 58: ...or less 330 ohms or more T6 50 Ta 40 C 30 V or less 340 ohms or more T5 50 Ta 60 C 28 V or less 300 ohms or more T5 50 Ta 60 C 28 V or less 300 ohms or more 25 V or less 200 ohms or more 25 V or less 240 ohms or more 22 V or less 180 ohms or more 22 V or less 190 ohms or more T4 50 Ta 80 C 30 V or less 330 ohms or more 28 V or less 250 ohms or more 25 V or less 240 ohms or more 22 V or less 190 oh...

Страница 59: ...Configuration software 2 9 Interface 2 11 Multichannel 2 9 Transmitter 2 5 Rail clip hardware 2 4 Rail mount transmitters 2 8 Integral mount sensor 2 7 Threaded sensor 2 8 Tools 2 2 Installation Drawings B 4 Intermittent Sensor Algorithm 3 5 Advanced feature 3 8 Case Examples 3 6 Damping 3 7 Implementation 3 9 Introduction 1 1 L Locations Certifications B 2 M Maintenance 4 1 Manual Overview 1 2 Ma...

Страница 60: ...Rosemount Model 3244MV MultiVariable Temperature Transmitter with Profibus PA I 2 Wiring diagrams 2 13 Sensors diagram 2 15 terminal 2 16 ...

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