Using the HART Communicator with Micro Motion - Emerson

1 Using the HART Communicator with Micro Motion 9700 Series TransmittersFebruary 1994 Temperature Coefficients forFlow and DensityPlease read this important notice if the sensor/transmitter/peripheralcombination has not been factory-calibrated by Micro further improve the performance of our products, Micro Motion haschanged the way sensor tube temperature is measured. A new RTD andmounting method have resulted in improved overall performance through:l Improved response time to changes in fluid temperaturel Improved immunity to changes in ambient temperaturel Improved temperature input to the processorAs a result of the RTD change, the temperature coefficients for flow anddensity that are stated in this manual might be different from the values onthe sensor serial number tag.

2 The serial number tag carries the latest andcorrect values for the sensor. Failure to use the correct temperaturecoefficients may result in performance outside the correct temperature coefficient will give you the bestflowmeter performance, Micro Motion recommends Using the values listedon the sensor serial number tag when reconfiguring the transmitter andperipheral device. If the sensor, transmitter, and peripheral wereordered together as a flowmeter, they are factory-calibrated with thecorrect coefficients, and no reconfiguration is Motion , Inc.

3 Micro MotionUSA Europe7070 Winchester CircleBoulder, CO 80301 Tel (303) 530-8400(800) 522-6277 Fax (303) 530-8459 Groeneveldselaan 83903 AZ VeenendaalThe NetherlandsTel +31 (0) 318 549549 Fax +31 (0) 318 549559 Micro Motion 1997, Micro Motion , rights reservedP/N 1004596, Rev. A (6/97)FISHER-ROSEMOUNT Managing The Process Better. e$ recycled paperITable of Contents1 Introduction to the Model 275 HART Communicator .

4 This instruction manual .. to 9700 Series transmitters .. operation .. outputs .. 32 Transmitter Setup for the Model 275 HART Communicator .. to a Micro Motion transmitter .. to milliamp output wiring terminals .. to wire loops .. transmitter switches or jumpers .. setting for RFT9739 .. setting for RFT9712/RFT9729 .. 83 Getting Started with the Model 275 HART Communicator .. crystal display .. keys.. function keys .. and shift keys .. select .. entry.. key .. options to the hot key menu .. an option from the hot key menu.

5 174 Process Variables .. field device variables .. output variables .. variables for RFT9739 .. variables for RFT9712/RFT9729 .. status.. control .. 23II5 Diagnostics and Service: Test/Status .. messages .. diagnostic tools .. indicators .. LED .. range and sensor failure messages.. failure messages .. device not characterized .. failed .. flow .. saturated .. messages .. Communicator self-test .. 356 Loop Test .. test overview .. output testing .. output test in diagnostics/service branch.

6 Output test in detailed setup branch .. output testing .. test in diagnostics/service branch .. output test in detailed setup branch .. the output test.. 467 Diagnostics and Service: Calibration.. overview .. zero .. the auto zero .. zeroing failure .. auto zero for the RFT9739 .. time .. limit .. calibration .. measurement theory .. density calibration for RFT9739 .. density calibration for RFT9712 or RFT9729 .. density calibration for RFT9739 .. calibration for RFT9739 .. viscosity calibration.

7 Viscosity calibration for version and higher .. calibration for RFT9739 .. 708 Milliamp Output Trim .. for output trim .. output trim in diagnostics/service branch .. output trim in detailed setup branch .. 749 Basic setup.. setup overview .. tag .. outputs .. units for milliamp outputs .. values for milliamp outputs .. output scaling .. 81 III10 Detailed Setup: Characterize .. overview .. characterization .. Flow calibration factor .. Field calibration for flow measurement .. characterization for RFT9739.

8 Characterization for RFT9712 or RFT9729 .. factor for RFT9739 .. characterization for RFT9739 .. Pressure polling for viscosity .. Viscosity calibration factor .. Field device tag .. Pressure input range .. compensation for or higher-revision RFT9739 .. Pressure polling for pressure compensation .. Pressure correction factors for flow and density .. Flow calibration pressure .. Field device tag .. Pressure input range .. 10311 Detailed Setup: Measurement Units.. units overview.

9 And totalizer units .. units for flow rates and totals.. units.. API gravity .. API standard volume .. units .. and pressure units for RFT9739 .. Choosing units of viscosity or pressure .. Special considerations for units of viscosity and pressure . measurement units to the transmitter .. 12012 Detailed Setup: Configure Field Device Variables .. device variables overview .. cutoffs .. Flow cutoffs for most applications .. Flow cutoffs for viscosity measurement.

10 Direction .. damping .. Internal damping on flow outputs .. Damping on density outputs from RFT9739 .. Internal damping on temperature outputs from RFT9739 . flow limits .. 131IV13 Detailed Setup: Configure Outputs.. outputs.. outputs .. Milliamp output variables .. Range values for milliamp outputs .. Read-only sensor range limits and minimum span.. Flow cutoffs for milliamp outputs .. Added damping on RFT9739 outputs.. Milliamp output testing .. Milliamp output trim.