Smart Temperature Transmitters - Automaatika

1 Product Data Sheet00813-0100-4728, Rev GAAugust 2001 Models 644H and Provides an installation-ready solutionincluding transmitter , sensor, and thermowell Improves accuracy by 75% using thetransmitter-sensor matching feature Provides local display of measurements anddiagnostics using the LCD meter Provides reliable fault detection for electronicsand sensors using fail-safe alarming Communicates digitally using HART protocolModel 644 RModel 644 HContentHigh Accuracy and Reliability for Control and Safety Applications .. page 2 Specifications .. page 3 Hazardous Locations Certifications .. page 7 Dimensional Drawings.. page 9 Ordering Information .. page 11 Configuration Data Sheet .. page 13 Smart Temperature TransmittersProduct Data Sheet00813-0100-4728, Rev GAAugust 2001 Models 644H and 644R2 High Accuracy and Reliabilityfor Control and Safety ApplicationsThe Model 644 is an ideal transmitter for your control and safety applications. It combines rosemount reliabilitywith the flexibility of digital electronics and is ideal for critical applications that require good performance or Model 644 communicates digitally using HART protocol and one unit can be configured for a variety ofsensors; RTD, thermocouple, millivolts, or ohmsBEST IN CLASS RELIABILITYThe transmitter -Sensor Matching feature eliminatesinterchangeability error, which improves accuracy by75%.

2 LOCAL INDICATIONThe LCD meter provides local indication oftemperature measurement, status, and an installation-ready temperaturemeasurement solution with rosemount s broadoffering of Temperature products. This solution leadsto a reduction in procurement and installation FLEXIBILITYA vailable in a head mount style that can be integrallymounted to a sensor or remotely with the UniversalHead. The rail mount style is great for a DIN rail in acontrol FAULT DETECTIONFail-safe alarming provides reliable fault detection forelectronics and sensors. The hardware safety switchdrives the transmitter output to the correct alarm leveleven if the microprocessor should Temperature SolutionsModel 3144 and 3244MV TemperatureTransmittersField mount style available in HART,FOUNDATION fieldbus, and 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.

3 Sensors, thermowells, andextensionsRosemount has a broad offering of RTD andthermocouples that are designed to meet Data Sheet00813-0100-4728, Rev GAAugust 20013 Models 644H and 644 RSpecificationsFUNCTIONAL SPECIFICATIONSI nputsUser-selectable; sensor terminals rated to V dc. See Accuracy for sensor 4 20 mA, linear with Temperature or input; digital outputsignal superimposed on 4 20 mA signal, available for a HART communicator or control system interfaceIsolationInput/output isolation tested to 500 V ac rms (707 V dc) at 50/60 HzLocal DisplayThe optional five-digit integral LCD meter includes a floating orfixed decimal point. It also displays options for engineering units( F, C, R, K, , and millivolts), milliampere, and percent of display can be configured to alternate between selecteddisplay options. Display settings are preconfigured at the factoryaccording to the standard transmitter configuration. They can bereconfigured in the field using a HART SupplyAn external power supply is required.

4 The transmitter operates to V dc transmitter terminal voltage with load resistancebetween 250 and 1100 ohms. A minimum of V dc powersupply is required with a load of 250 ohms. transmitter powerterminals are rated to V dc. A HART Communicator requiresa loop resistance between 250 and 1100 ohms. Do notcommunicate with the transmitter when power is below 12 V dc atthe transmitter Limits0 99% relative humidity, non-condensingTransient ProtectionThe Model 470 prevents damage from transients induced bylightning, welding, heavy electrical equipment, or switch to the Model 470 Product Data Sheet (document number00813-0100-4191) for more LimitsTurn-on TimePerformance within specifications in less than seconds afterpower is applied to transmitter , when damping value is set to TimeApproximately secondsFailure ModeThe Model 644 features software driven alarm diagnostics. Theindependent circuit is designed to provide backup alarm output ifthe microprocessor hardware or software fails.

5 The alarm levelsare user-selectable using the failure mode switch. If failure occurs,the position of the jumper determines the direction in which theoutput is driven (HI or LO). The jumper switch feeds into thedigital-to-analog (D/A) converter, which drives the proper alarmoutput even if the microprocessor fails. The values at which thetransmitter drives its output in failure mode depends on whether itis configured to standard, custom, or NAMUR-compliant (NAMUR recommendation NE 43, June 1997) operation. The values forstandard and NAMUR-compliant operation are as follows:Custom Alarm and Saturation LevelCustom factory configuration of alarm and saturation level isavailable with option code C1 for valid values. These values canalso be configured in the field using a HART SPECIFICATIONSE lectrical ConnectionsHART Communicator ConnectionsMaterials of ConstructionOperating LimitStorage LimitWith LCD Meter 4 to 185 F 20 to 85 C 50 to 185 F 45 to 85 CWithout LCD Meter 40 to 185 F 40 to 85 C 58 to 248 F 50 to 120 C TABLE 1.

6 Operation ParametersStandard(1)(1) Measured in milliamperesNAMUR- Compliant(1)Linear I I High:21 I 23 (default)21 I 23 (default)Fail Low:I and Sensor TerminalsModel 644 HCompression screws permanently fixed toterminal blockModel 644 RCompression screw permanently fixed to frontpanelWAGO spring clamp terminals are optional (option code G5)Communication TerminalsModel 644 HClips permanently fixed to terminal blockModel 644 RClips permanently fixed to front panelElectronics Housing and Terminal BlockModel 644 HNoryl glass reinforcedModel 644 RLexan polycarbonateEnclosure (Option code J5 or J6)HousingLow-copper aluminumPaintPolyurethaneCover O-ringBuna-NProduct Data Sheet00813-0100-4728, Rev GAAugust 2001 Models 644H and 644R4 MountingModel 644R attaches directly to a wall or a DIN rail. Model 644 Hinstalls in a connection head or universal head mounted directly ona sensor assembly, apart from a sensor assembly using auniversal head, or to a DIN rail using an optional mounting Ratings (Model 644H)Option codes J5 and J6 are NEMA 4X, IP66, and IP68.

7 Optioncode J6 is CSA Enclosure Type SPECIFICATIONSCE Electromagnetic Compatibility Compliance TestingThe Models 644H and 644R meet all requirements listed underIEC 61326: Amendment 1, Supply EffectLess than of span per voltVibration EffectThe Model 644H and Model 644R are tested to the followingspecifications with no effect on performance:StabilityRTDs and thermocouples have a stability of of reading C (whichever is greater) for twelve monthsSelf CalibrationThe analog-to-digital measurement circuitry automaticallyself-calibrates for each Temperature update by comparing thedynamic measurement to extremely stable and accurate internalreference 644 HHead Mount Transmitter78 g ozM5 LCD Meter34 g ozJ5, J6 Universal Head, StandardCover520 g ozJ5, J6 Universal Head, Meter Cover604 g ozModel 644 RRail Mount Transmitter173 g ozFrequencyVibration10 to 60 mm displacement60 to 500 Hz3 g peak accelerationRosemount Conformance to SpecificationsA rosemount product not only meets its published specifications, but most likely exceedsthem.

8 Advanced manufacturing techniques and the use of Statistical Process Controlprovide specification conformance to at least 3 (1). Our commitment to continualimprovement ensures that product design, reliability, and performance will example, the Reference Accuracy distribution for the Model 644 is shown to the Specification Limits are C, but, as the shaded area shows, approximately 68%of the units perform three times better than the limits. Therefore, it is very likely that you willreceive a device that performs much better than our published , a vendor who grades product without using Process Control, or who is notcommitted to 3 performance, will ship a higher percentage of units that are barely withinadvertised specification distribution shown is for the Model644, Pt 100 RTD sensor, Range 0 to 100 C(1) Sigma ( ) is a statistical symbol to designate the standard deviation from the mean value of a normal p i ca l A c cu r ac y3144-GRAPH 3 2 1 1 2 3 Product Data Sheet00813-0100-4728, Rev GAAugust 20015 Models 644H and 644 RAccuracyAccuracy ExampleWhen using a Pt 100 ( = ) sensor input with a 0 to 100 Cspan: Digital accuracy would be C, D/A accuracy would be of 100 C or C, Total = C.

9 TABLE 2. Model 644 Input Options and Span(1)(1) No minimum or maximum span restrictions within the input ranges. Recommended minimum span will hold noise within accuracy specification with dampingat zero (2)(2) Digital accuracy: Digital output can be accessed by HART Communicator or rosemount control (3)(3) Total Analog accuracy is the sum of digital and D/A , 3-, 4-wire RTDs C F C F C FPt 100 IEC 751, 1995 ( = ) 200 to 850 328 to 15621018 of spanPt 100 JIS 1604, 1981 ( = ) 200 to 645 328 to 11931018 of spanPt 200 IEC 751, 1995 ( = ) 200 to 850 328 to 15621018 of spanPt 500 IEC 751, 1995 ( = ) 200 to 850 328 to 15621018 of spanPt 1000 IEC 751, 1995 ( = ) 200 to 300 328 to 5721018 of spanNi 120 Edison Curve No. 7 70 to 300 94 to 5721018 of spanCu 10 Edison Copper Winding No. 15 50 to 250 58 to 4821018 of spanThermocouples(4)(4) Total digital accuracy for thermocouple measurement: sum of digital accuracy + B(5)(5) Digital accuracy for NIST Type B T/C is C ( F) from 100 to 300 C (212 to 572 F.)

10 NIST Monograph 175, IEC 584100 to 1820212 to 33082545 of spanType ENIST Monograph 175, IEC 584 50 to 1000 58 to 18322545 of spanType JNIST Monograph 175, IEC 584 180 to 760 292 to 14002545 of spanType K(6)(6) Digital accuracy for NIST Type K T/C is C ( F) from 180 to 90 C ( 292 to 130 F. )NIST Monograph 175, IEC 584 180 to 1372 292 to 25022545 of spanTy pe NNIST Monograph 175, IEC 584 200 to 1300 328 to 23722545 of spanTy pe RNIST Monograph 175, IEC 5840 to 176832 to 32142545 of spanType SNIST Monograph 175, IEC 5840 to 176832 to 32142545 of spanType TNIST Monograph 175, IEC 584 200 to 400 328 to 7522545 of spanDIN Type LDIN 43710 200 to 900 328 to 16522545 of spanDIN Type UDIN 43710 200 to 600 328 to 11122545 of spanTypeW5Re/W26 ReASTM E 988-960 to 200032 to 36322545 of spanMillivolt Input 10 to 100 mV3 mV mV of span2-, 3-, 4-wire Ohm Input0 to 2000 ohms20 ohm ohm of spanProduct Data Sheet00813-0100-4728, Rev GAAugust 2001 Models 644H and 644R6 Ambient Temperature EffectTransmitters can be installed in locations where the ambienttemperature is between 40 and 85 C ( 40 and 185 F).