Fluke HART 744 User's Manual
Contents
1. pe09s bmp PROCESS SERVICE Example PV Range AO SV TV QV Loop test Pressure zero trim Output trim Sensor trim Device Identification HART Information Documenting Process Calibrator HART Mode Tag PV units LRV URV Damping Transfer function Communication Operations Software version Final assembly number Tag Message Date Description Sensor serial number Sensor lower and upper limits Sensor minimum span temperature devices only Sensor type Sensor connections Manufacturer Model Device HART ID Software revision Hardware revision Number of preambles Figure 2 744 HART Mode Menu Tree Write protect Alarm state HART poll address HART burst mode HART burst command pe03f eps 744 HART Mode Users Guide Sensor From the Active Device screen press the Setup and Sensor softkeys to access the read only Sensor Setup screen This is where you can view information about the sensor in the transmitter including serial number limits and span The limits shown are the absolute limits for the sensor The Upper Range Value URV and Lower Range Value LRV are different and are viewable and programmable through the Basic Setup screen Loop 244 Ganj 7 Measure 5 385 m Source Off Sensor S N 200606 Sensor Lower Limit 0 00 psi sensor Upper Limit 150 002. e Not Available Service Loop Test ME EE Pressure Zero Trim Fa EE ENN Process Detailed process information e e e e 744 HART Mode Users Guide Communication Operations Figure 2 shows the HART Mode menu tree Availability of some elements in the menus depends on which transmitter you are using and whether the transmitter is configured by itself on a current loop or in a multidrop connection Viewing Process Variables From the Active Device screen press the Process softkey to view more device variables and their continuously updated values To see additional information press the Next Page softkey Loop 24V Gan e M Measure 3 382 m Source Off 2088 PT 306 1 Pres 0 01 psi mge 0 063 AO 3 9910 m Next Page Done pe08s bmp Setup Operations The Setup softkey provides access to the following five setup functions e Basic e Sensor e Device Identification e HART Output e HART Information Basic From the Active Device screen press the Setup and Basic softkeys to access the read write Basic Setup screen You can use this screen to clone a transmitter as described at the end of this manual Loop 244 mm HART J SETUP Measure 3 385 m Press ENTER to change item Tag SEEDER PV Unit psi Lower Range Value 0 00 psi Upper Range Value 14 20 psi Damping 0 0000 s Transfer Function Sq root Store Recall Reset Page Page Page Dong
3. a 22 R recall page 19 S sensor 10 sensor trim 13 17 serial communication series resistor service operations 12 setup basic B device identification HART information HART output 11 Do sensor software versions 6l store page 19 supported transmitters T task 744 15 telephone numbers for Fluke 2 trim output 13 17 pressure zero sensor 13 17 U URV la
4. multidrop configurations Note Sensor trim is provided for supported transmitters with a few exceptions as identified in the list of supported transmitters that you can view on the display To display a list of supported transmitters and software versions 1 If the calibrator is connected to a HART transmitter with the Active Device screen showing press the Abort softkey followed by More Choices If the calibrator is not connected to a HART transmitter press the key followed by More Choices Press the Device Revs softkey The Browser screen appears Loop 24V mm Measure 19 087 m Source 12 831 psi Select Manufacturer to see devices Honeywell Kent Moore Products Rosemount Siemens Abort Done pe07s bmp Press amp or Y to highlight the desired manufacturer and press ENTER A list of model numbers appears Press amp or Y to highlight the model number and press ENTER J A list of software versions appears Documenting Process Calibrator HART Mode Supported vs Generic Transmitters Table 1 Supported vs Generic Transmitters Devices Operation Supported Transmitter Generic Transmitter Single Point Multidrop Single Point Multidrop Top Level Active Device screen e e e e Basic read write cloning capability Sensor read only Device Identification read write HART Output read write e e e e HART Information read only e e e
5. 3 following the prompts on the display Documenting Process Calibrator HART Mode Calibrating a Supported HART Transmitter Sensor Trim You can only perform a Sensor Trim on a supported transmitter A Sensor Trim adjusts the Input stage of a HART transmitter If your application does not use the Output stage of the transmitter Sensor Trim is the only adjustment you need to make A Sensor Trim may involve one or more trim points This is controlled by the transmitter s software You can only perform a Sensor Trim on a supported transmitter To perform a Sensor Trim proceed as follows 1 From the Active Device screen press the Service softkey followed by Sensor Trim Loop 24 Gam pe Hi Eie Measure 3 884 m PT 306 1 Source 0 002 psi elect sensor trim operation Perform user trim both Perform user trim lower Perform user trim upper Abort pe17s bmp 17 744 HART Mode Users Guide 2 Use the amp and Y keys to select the Sensor Trim 5 Enter the trim value you want the calibrator to operation and press ENTER J produce and press CENTER or in the case of a pressure transmitter as above press Fetch to load 3 Follow the instructions on the display For pressure the value being measured by the Fluke pressure there is a message to connect a pressure module to module into the dialog box the calibrator and another to press the key to zero the pressur
6. a HART transmitter refer to Figure 1 and proceed as follows Note Ifyou only want a communication connection to a transmitter that is powered in a loop simply clip the HART alligator clips to the loop power terminals on the transmitter press 9 and you are done 1 Connect the calibrator mA jacks to the loop power terminals of the transmitter 2 Plug the HART interface cable into the SERIAL PORT then connect the alligator clips to the same terminals as in step 1 There is no right or wrong polarity 3 Press the key Note The square root symbol on key is there only for calculator mode At all other times there is no square root function associated with the key Documenting Process Calibrator HART Mode Connecting to a HART Transmitter If the transmitter is not powered by a loop power supply press the Loop Power softkey to activate 24V loop power Note The calibrator provides loop power through an internal series resistance of 250 Q If the calibrator Shows a measurement of 0 mA check for reversed current leads If an external loop power supply is used there must be a resistance of between 230 2 and 270 42 connected in series with the external loop supply and the transmitter The calibrator tries Poll Address 0 single transmitter per loop If no connection is made press the Poll softkey to scan Poll Addresses 1 through 15 multidrop Once the calibrator establishes communication with the transmit
7. adjusting the Input stage is called Sensor Trim Adjusting the Output stage is called Output Trim Both adjustments are made from the Service menu For pressure transmitters there is another adjustment called Pressure Zero Trim This adjustment is the same as trimming the lower sensor point at zero All three operations are run from the 744 HART mode Service menu 13 744 HART Mode Users Guide 744 Calibrator Sensor trim Pressure zero trim Loop test Output trim 4 20mA Physical loop variable pe02f eps Figure 3 Block Diagram of a HART Transmitter 14 Calibrating a Supported HART Transmitter An as found and as left transmitter calibration has an easier more automated process for HART transmitters than for analog transmitters The calibration procedure is the same as described in the 744 Users Manual except for how you set up the calibration template and how you adjust the transmitter Note If you are starting a calibration procedure from a loaded Task connect to the HART transmitter first and establish communication before you press Task in analog mode The following procedure assumes that you are familiar with using a 740 Series Documenting Process Calibrator to calibrate analog transmitters and are not running a loaded Task 1 Make the appropriate measuring sourcing and HART interface connections between the calibrator and the transmitter and press to establish comm
8. psi sensor Minimum Span 7 50 psi Done pe10s bmp 10 Device Identification From the Active Device screen press the Setup and Device Identification softkeys to view information about the transmitter You can program the Tag Message Date and Descriptor registers in the transmitter using this screen Loop 244 Ganj 7 SETUP Measure 3 385 m Press ENTER to Change SAW Revision 5 3 153 Serial Number 140019 Tag PT 306 1 Message JDW 2088 Date 00 00 1900 Descriptor ROSEMOUNT Done pe11s bmp HART Output From the Active Device screen press the Setup and HART Output softkeys to access the read write HART Output screen Here you can change the Poll Address 0 single transmitter any other address multidrop and control burst mode Loop 244 Gi SETUP Measure 3 380 m Press ENTER to change item Write Protect No Alarm State Hi HART Poll Address o HART Burst Mode Off HART Burst Command Bene Done pe12s bmp Documenting Process Calibrator HART Mode Communication Operations HART Information From the Active Device screen press the Setup and HART Information softkeys to access the read only HART Information screen This screen shows more complete information about the transmitter model hardware and software revision numbers and how many preambles it sends Loop 24 Gam pr Measure 3 882 m Source Off Manufactur
9. Cloning a Transmitter Press the Store Page softkey to load the settings into the calibrators memory not the transmitter Disconnect the calibrator from the transmitter and connect it to the transmitter you want to configure Press the Abort softkey to establish communication Press the Setup softkey then select Basic to return to the Basic Setup screen Press the Recall Page softkey to refresh the calibrator display with the cloned parameter settings The settings are not transmitted to the transmitter at this time Use the amp or Y and ENTER Jkeys to select parameters one at a time change them or leave them as cloned and press the Send softkey to transmit them to the transmitter 19 744 HART Mode Users Guide 20 A abort 12 active device screen analog mode 12 as found as left B basic setup browser screen C calibrating a HART transmitter 15 cloning 19 communication test leads Bl D device identification 10 E external series resistor 3 G generic transmitters 6 H HART information 11 HART mode HART output Index input stage 13 L loop power 3 loop test LAV 4 model numbers 6 multidrop B 13 21 744 HART Mode Users Guide o output stage output stage output trim phone numbers for Fluke 2 pressure module pressure zero trim process variables 8 PV
10. FLUKE 744 Documenting Process Calibrator HART Mode Users Guide PN 691292 December 1998 1998 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies Table of Contents Introductionis aoc HE ELE EUR LEER e e nan How to Contact Fluke Connecting to a HART Transmitter Supported vs Generic Transmitters rrranrnnnvnnnnrnrrvnnnnenenrenevrnrnvnnnvnnenvnsnrnnnnressvnseneeenen Communication Operations nennen neret Viewing Process Variables ccccccceeeceeeseceeeeeeeeeseeeeeseeeneseaeeseeneeseseeeseseeeneeeaeeesees Setup Operations nenn CIIM T ee Device le e EE HART Output ee ine HART Information cccccccceesceceeseceessceeeseneceeeeeeessaeeeesaeeeceneeessaeeesseeeeseneeeesssessaes Service Operations sissies dennen an aaee ae Saoer EAE a rA e OIEA ER Era SEn Ea RES Disi Interaction between Analog Mode and HART Mode Understanding HART Calibration essen 744 HART Mode Menus for Adiustment AA 744 HART Mode Users Guide Index il List of Tables Table Title Page 1 Supported vs Non Supported Instruments enne iii 744 HART Mode Users Guide List of Figures Figure Title Page 1 Connecting to a HART Transmitter 2 744 HART Mode Ment RN TEE 3 Block Diagram of a HART Transmitter srrrrrnrervrrsvrrvernvvrvernvervnrnrervernrerrernrsrvernvssvernessverne
11. bration of the output stage or to check for proper reading on an external loop reading device To perform a Loop Test 1 From the Active Device screen Press the Service softkey followed by Loop Test 16 Loop 24 Gm pe A Enes Measure 11 330 m PVAO 12 0000 m Select or ENTER test value 4 m 12 m 20 m Done pe15s bmp 2 Press a softkey to command the transmitter to set its analog output to the corresponding value or manually enter a value with the numeric keys In the middle of the screen the transmitter acknowledges the selected PVAO digital representation of the Output stage The calibrator shows the measured value at the top of the screen so you can use Loop Test as a quick way to check the calibration of the transmitter s Output stage Output Trim An Output Trim adjusts the tranmitter s Output stage You can perform an Output Trim on both generic and supported transmitters To perform an Output Trim 1 From the Active Device screen Press the Service softkey followed by Output Trim Loop 24 mir PVAO 4 0000 m 744 Measure 3 991 m Fetch or ENTER value Trim Current Hi m Abort Fetch Send pe16s bmp 2 Press Fetch to load the mA value being measured by the calibrator into the dialog box 3 Press Send to trim the low analog output point 4 To trim the high analog output point repeat steps 2 and
12. e module 6 Press Trim 4 Press Continue 7 If prompted to do so repeat steps 2 and 3 following the prompts on the display to trim the remaining L 24V Gm i HART EEE PY 000 psi 5 points ZERO A Last Trim 0 000 psi Note FLUKE 700P04 0 000 psi Select trim points near the range limits unless the Fetch or ENTER value in range transmitter s documentation specifies otherwise PINE If you get an error message that for the selected trim point there is an excess correction sometimes you can solve the problem by doing a Abort Fetch Trim series of Sensor Trims in small steps from the pet8s bmp previous trim point toward the desired trim point Lower Trim E 18 Cloning a Transmitter Cloning copies the Basic Setup information from one transmitter to another You can clone generic and supported transmitters To use the calibrator to clone a transmitter 1 Connect the calibrator to the transmitter you want to clone You only need a communication connection From the Active Device screen press the Setup softkey Use the amp or keys to select Basic from the list on the screen and press ENTER J Loop 24 Gm pr HART J SETUP Measure 3 885 m Press ENTER to change item Tag MERITI PV Unit psi Lower Range Value 0 00 psi Upper Range Value 14 20 psi Damping 0 0000 s Transfer Function Sq root Er Se pe09s bmp Documenting Process Calibrator HART Mode
13. enr 744 HART Mode Users Guide vi Documenting Process Calibrator HART Mode Introduction A Warning To avoid electric shock read the Safety Information in the 744 Users Manual before you use the Fluke 744 Documenting Process Calibrator With analog transmitters you must make a hardware adjustment during calibration With HART Highway Addressable Remote Transducer transmitters adjustments are by remote command These adjustments require the use of a communication tool as well as a calibrator The Fluke 744 hereafter called calibrator provides communication and calibration functions in one tool This manual describes how to use HART mode which is active when the calibrator is communicating over its serial HART interface to a HART transmitter Refer to the 744 Users Manual for safety analog mode operating instructions specifications and other general information All of the calibrator functions described in the 744 Users Manual are available and can be used with HART transmitters The only transmitters addressed in this manual are HART transmitters 744 HART Mode Users Guide How to Contact Fluke To contact Fluke call USA and Canada 1 888 99 FLUKE 1 888 993 5853 Europe 31 402 678 200 Japan 81 3 3434 0181 Singapore 65 276 6196 Anywhere in the world 1 425 356 5500 Or visit us on the World Wide Web Connecting to a HART Transmitter To connect to and begin to communicate with
14. er Rosemount Device 2068 Device ID 200606 S W Revision 5 3 1863 H W Revision 1 Preambles 5 Dane pe13s bmp 11 744 HART Mode Users Guide Service Operations The Service softkey provides access to Loop Test Pressure Zero Trim where applicable Output Trim and Sensor Trim operations For generic transmitters only Loop Test Output Trim and Pressure Zero Trim are available See Table 1 The trim adjustment operations are described later in this manual Note Loop Test and Output Trim are not available if the transmitter is in multidrop mode Abort Softkey The Abort softkey terminates the communication operation underway and returns control to the previous screen From the Active Device screen Abort calls up the browser in which you can view the list of supported transmitters 12 Interaction between Analog Mode and HART Mode Analog mode is normal calibrator operation as described in the 744 Users Manual HART mode is activated when you press the HART key This action starts communication over the HART interface You can switch between HART and analog modes easily by pressing or pressing 35 to go to analog mode from HART mode gaining the benefit of having the transmitter automatically set up analog mode for appropriate measure and source functions if desired For supported transmitters the transition to analog mode goes to the MEASURE SOURCE screen which provides an easy wa
15. ter the Active Device screen appears In the case of a multidrop configuration you must choose a transmitter from a list and press EIER 744 HART Mode Users Guide Loop 24V mr Measure 13 118 m Source 12 676 psi 2088 PT 306 1 PY 12 69 psi PvA O 19 1260 m PV LRV 0 00 psi PV URV 14 20 psi Select operation for this device Abort Service Setup Process pe06s bmp The Active Device screen provides the following information for all transmitters supported or generic Poll address if not 0 Model number and Tag ID PV Primary Variable PVAO digital representation of the Analog Output PV LRV PV Lower Range Value PV URV PV Upper Range Value Softkeys for accessing HART operation menus Documenting Process Calibrator HART Mode Connecting to a HART Transmitter RTD Transmitter we 2 E 9 q AS Z AON a gt pe01c eps Figure 1 Connecting to a HART Transmitter 744 HART Mode Users Guide Supported vs Generic Transmitters The transmitters In addition the calibrator is programmed to use device dependent commands for a selection of HART calibrator communicates with virtually all HART transmitters and their software versions These are supported transmitters All other transmitters are generic Table 1 shows the operations that are available for supported vs generic transmitters in single point and
16. unication 2 Press to switch to analog mode Documenting Process Calibrator HART Mode Calibrating a Supported HART Transmitter Loop 24 Gam pe Measure 3 3984 m PT 306 1 Source Off MEAS PY SOURCE psi Abort pe14s bmp You are presented with a set of choices for analog mode Use the amp and Y keys to select one of the measure source choices This is where you select measure mA analog output or measure PV which does not involve the Output stage of the transmitter See Figure 3 Press ENTER J Press the As Found softkey Use the amp and keys followed by to select an instrument calibration procedure You ll see that the calibration template is preloaded with appropriate data You can make changes to any item if you wish 15 744 HART Mode Users Guide 7 Proceed with calibration as usual described in the 744 Users Manual 8 Press the Adjust softkey This returns you to HART mode and presents you with the Service menu for the transmitter 9 Do an Output Trim a Sensor Trim or both These are Service Operations and are described later in this manual When you have finished with the trim procedures press the Done softkey 10 Press the As Left softkey and repeat the calibration procedure to verify that the transmitter passes Loop Test The Loop Test feature sends a command to the transmitter to set its output stage to a specified value Use this to check the cali
17. y to proceed with an as found calibration For generic transmitters the transition to analog mode involves choosing the MEASURE or SOURCE screen from which you select the appropriate function For supported or generic transmitters when you press to return to HART mode the Active Device screen is displayed The HART serial communication connection remains active as you switch between HART and analog modes Understanding HART Calibration An analog transmitter has one stage of electrical conversion from a measured physical parameter to a 4 20 mA current loop output A HART transmitter has the three stages shown in Figure 3 Depending on how the transmitter is used in your application you may need to test and adjust the Input stage the Output stage or both For example if your application requires the Primary Variable PV to be correct when read by a host computer you must calibrate the Input stage If your application requires that the 4 20 mA current output value accurately reflect what the Input stage is measuring you must calibrate both the Input and Output stages Transmitters in multidrop systems in which more than one is wired in parallel do not use their Output stages at all Their analog outputs are all held at an idling level of 4 mA no matter what the Input stage is measuring Documenting Process Calibrator HART Mode Understanding HART Calibration 744 HART Mode Menus for Adjustment In 744 HART mode
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