Smart Temperature Transmitters - msp-maad.com

1 Product Data Sheet00813-0100-4724, Rev DAAugust 2001 Models 3144 and The ultimate Temperature transmitter forcontrol & safety applications Sensor Drift Alert and Hot Backup featuresimprove measurement reliability over time 5-year stability reduces maintenance costs Dual-compartment housing providesthe highest reliability in harshindustrial environments Communicates digitally using HART protocolContentThe Ultimate Temperature transmitter for Control and Safety Applications .. page 2 Specifications .. page 3 Hazardous Locations Certifications .. page 7 Dimensional Drawings.

2 Page 9 Ordering Information .. page 11 Configuration Data Sheet .. page 15 Smart Temperature TransmittersProduct Data Sheet00813-0100-4724, Rev DAAugust 2001 Models 3144 and 3244MV2 The Ultimate Temperature transmitter for Control andSafety ApplicationsThe Models 3144 and 3244MV Temperature Transmitters provide superior accuracy, stability, and reliability, makingthem the industry leading Temperature Transmitters used in control and safety applicationsThe Model 3144 is a single-sensor input transmitter . The Model 3244MV has a dual-sensor input capability thatallows the transmitter to accept simultaneous input from two independent sensors.

3 You can use this transmitter formeasuring differential temperatures , averaging Temperature , or redundant Temperature IN CLASS RELIABILITYP rovides industry-leading five year stability, whichreduces maintenance costs. The transmitter -SensorMatching feature eliminates interchangeability error,which improves accuracy by 75%.SUPERIOR HOUSING DESIGND esigned with dual-compartment housing thatprovides the highest reliability in harsh dual-compartment housing provides isolationbetween the electronics and terminal BACKUP CAPABILITYBy automatically switching to the backup sensor ifthe primary sensor fails, the Hot Backup feature canreduce the risk of losing important temperaturemeasurements by 80%.

4 OUTPUT PROTOCOL FLEXIBILITYThe Models 3144 and 3244MV are available in4 20 mA/HART, FOUNDATION fieldbus, andProfibus-PA output protocols that are designed tomeet plant DIAGNOSTICSS ensor Drift Alert enables continuous monitoring ofthe differential Temperature for two sensors. Thisdifferential Temperature measurement should changewhen the sensors drift. If this change exceedsdefined limits, the user is alerted of an unreliablemeasurementRosemount Temperature SolutionsModel 3144 and 3244MV TemperatureTransmittersField mount style available in HART, FOUNDATION fieldbus, and Profibus-PA 644 Smart Temperature TransmitterHead or rail mount styles available with 848T Eight Input Temperature TransmitterEight input transmitter available with FOUNDATION fieldbus 244E Temperature TransmittersHead or rail mount styles that 144H Temperature TransmittersHead mount style for 2- and 3-wire RTD sensorinputs.

5 Sensors, thermowells, andextensionsRosemount has a broad offering of RTD andthermocouples that are designed to meet Data Sheet00813-0100-4724, Rev DAAugust 20013 Models 3144 and 3244 MVSpecificationsFUNCTIONAL SPECIFICATIONSI nputsUser-selectable. See Accuracy Table for sensor 4 20 mA, linear with Temperature or linear with input. Digitaloutput signal superimposed on 4 20 mA signal, available forHART communicator or control system LimitationsNOTEHART Communication requires a loop resistance between 250and 1100 ohms. Do not communicate with the transmitter whenpower is below 12 V dc at the transmitter terminalPower SupplyExternal power supply required.

6 Transmitters operate on V dc transmitter terminal voltage (with 250 ohm load, V dc power supply is required). transmitter power terminalsrated to V isolation tested up to 500 V rms (707 V dc)Update TimeApproximately seconds for a single sensor(1 second for two sensors.)IndicationOptional five-digit LCD meter includes 0 100% bar graph. Digitsare inches (8 mm) high. Display options include engineeringunits ( F, C, R, K, ohms, and millivolts), percent, andmilliamperes. The display can also be set to alternate betweenengineering units/milliamperes, Sensor 1/Sensor 2, and Sensor1/Sensor 2/Differential Temperature .

7 All display options, includingthe decimal point, may be reconfigured in the field using a Model275 HART Communicator or Limits0 100% relative humidityTransient Protection (option code T1)The transient protector helps to prevent damage to the transmitterfrom transients induced on the loop wiring by lightning, welding,heavy electrical equipment, or switch gears. The transientprotection electronics are contained in an add-on assembly thatattaches to the standard transmitter terminal block. The transientprotector has been tested per the following standard: ASME B (ANSI)/IEEE (IEEE 587)/ LocationCategories A2, peak (10 1000 mS Wave)6kV/3kA peak ( 50 mS Wave 8 20 mSCombination Wave)6 peak (100 kHz Ring Wave)4kV peak EFT (5 50 nS Electrical Fast Transient) Loop resistance added by protector: 22 ohms max.

8 Nominal clamping voltages: 90 V (common mode), 77 V(normal mode) Temperature LimitsTurn-on TimePerformance within specifications less than seconds afterpower is applied to transmitterFailure ModeThe Models 3144 and 3244MV features software driven alarmdiagnostics. The independent circuit is designed to provide backupalarm output if the microprocessor hardware or software fails. Thealarm levels are user-selectable using the failure mode jumper. Iffailure occurs, the position of the jumper determines the directionin which the output is driven (HI or LO). The jumper switch feedsinto the digital-to-analog (D/A) converter, which drives the properalarm output even if the microprocessor fails.

9 The values at whichthe transmitter drives its output in failure mode depends onwhether it is configured to standard, or NAMUR-compliant(NAMUR recommendation NE 43, June 1997) operation. Thevalues for standard and NAMUR-compliant operation are asfollows: TABLE 1. Operation ParametersMaximum Load = X (Supply Voltage - ) Supply Voltage (V dc)OperatingRegion4 20 mA dcLoad (Ohms)5001100 Operating LimitStorage LimitWithout LCD Meter 40 to 185 F 40 to 85 C 60 to 250 F 50 to 120 CWith LCD Meter 4 to 185 F 20 to 85 C 50 to 185 F 45 to 85 CStandard(1)(1) Measured in milliamperesNAMUR-Compliant(1)Linear I I High:21 I 23 (default)21 I 23 (default)Fail Low.

10 I Data Sheet00813-0100-4724, Rev DAAugust 2001 Models 3144 and 3244MV4 PHYSICAL SPECIFICATIONSC onduit Connections 14 NPT, (PG11), M20 X (CM20), or JIS G conduit. The M20 X , PG , and JIS G1/2 conduit threadsare provided by an adapter. HART communicator connections arepermanently fixed to power/signal of ConstructionElectronics Housing Low-copper aluminum or CF-8M(cast version of 316 Stainless Steel)Paint PolyurethaneCover O-rings Buna-NWeightMountingTransmitters may be attached directly to the sensor. Optionalmounting brackets B4 and B5 permit remote mounting.