August 2001 PC-Programmable Temperature …

1 Product Data Sheet00813-0100-4737, Rev FAAugust 2001 Models 244EH and Provide an installation-ready solution usingComplete Point Solutions (CPS) Accept a wide variety of 2-, 3-, and 4-wireRTDs and thermocouple sensor types Configure using the Model 244 ECConfiguration Interface and a standard PC Provide 500 VAC input to output isolation Mount in remote and integral applicationsusing the universal headModel 244 ERModel 244 EHContentThe Model 244E .. page 2 Specifications .. page 3 Hazardous Locations Certifications .. page 7 Dimensional Drawings.. page 8 Ordering Information .. page 10PC-Programmable Temperature TransmitterProduct Data Sheet00813-0100-4737, Rev FAAugust 2001 Models 244EH and 244ER2 The Model 244E PC-ProgrammableTemperature TransmitterThe rosemount Model 244E is a cost-efficient solution for non-critical Temperature monitoring to wiring direct, the Model 244E will save money in cabling and installation costs while deliveringaccurate and reliable READY SOLUTIONSThe Model 244E is part of the rosemount CompletePoint Solutions (CPS) program.

2 CPS guarantees thatthe transmitter , sensor, extension, and thermowellwill be shipped from the factory as an installationready assembly to save on installation Model 244E allows for great flexibility inselecting a sensor type that is appropriate for theprocess being measured. The Model 244E acceptsinputs from a wide variety of 2-, 3-, and 4-wireRTDs as well as thermocouples, millivolt, and ohmsensor Model 244E is designed with 500 VAC input tooutput isolation. This isolation helps to ensure theintegrity of the Temperature measurement inindustrial environments and not damage sensitivesystem Model 244EC Configuration Interface consistsof a programmer, cables, and configuration Model 244EE configuration software, when usedin conjunction with the interface, provides the toolsnecessary to select the sensor type, sensor range,and sensor error action in addition to manyother HEADThe Model 244EH head mount transmitter offersdifferent configurations for mounting.

3 Using theRosemount Universal Head, the Model 244 EHmay be mounted either integrally or remotely tofit the needs of the specific Temperature 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. sensors, thermowells, andextensionsRosemount has a broad offering of RTD andthermocouples that are designed to meet Data Sheet00813-0100-4737, Rev FAAugust 20013 Models 244EH and 244 ERSpecificationsFUNCTIONAL SPECIFICATIONSI nputsUser-selectable using the Model 244EC Configuration Interfaceand the Model 244EC Configuration Software.

4 Sensor terminalsare rated to V dc. See Accuracy .Output2-wire 4 20 mA, linear with Temperature for RTDs andthermocouples and linear with input for millivolts and isolation tested to 500 V ac rms (707 V dc) at 50/60 HzPower SupplyAn external power supply is required. The transmitter operates to V dc. transmitter power terminals are rated V ModeThe Model 244E features software driven alarm diagnostics andan independent circuit. These features are designed to providebackup alarm outputs in case the microprocessor, electronics,hardware, or software fails. The alarm levels are user-selectableusing the failure mode switch. In case of alarm, the position of thejumper determines the direction in which the output is driven (HI orLO).

5 The jumper switch feeds into the digital-to-analog (D/A)converter, which drives the proper alarm output even if themicroprocessor fails. The values that the transmitter drives itsoutput in failure mode depends on whether it is factory configuredto standard or NAMUR compliant operation. The values forstandard and NAMUR-compliant operation are as follows. TABLE 1. Standard vs. NAMUR-compliant specificationsHumidity Limits0 99% relative humidity, non-condensingTransient ProtectionThe Model 470 prevents transmitter damage from transientsinduced by lightning, welding, heavy electrical equipment, orswitch gears. Refer to the Model 470 Product Data Sheet(document number 00813-0100-4191) for more TimeApproximately secondsTemperature LimitsTurn-on TimePerformance within specifications is less than seconds afterpower is applied to transmitter when damping value is set to zerosecondsPHYSICAL SPECIFICATIONSE lectrical ConnectionsStandard(1)(1) Measured in milliamperesNAMUR- Compliant(1)Linear I I High:21 I 23 (default)21 I 23 (default)Fail Low.

6 I LimitStorage Limit 40 to 85 C ( 40 to 185 F) 50 to 120 C ( 58 to 248 F)ModelPower and SensorTerminalsCommunicationTer min alsModel 244 EHCompression screwspermanently fixed toterminal blockClips permanentlyfixed to terminal blockModel 244 ERCompression screwpermanently fixed tofront panelClips permanentlyfixed to front panelWAGO spring clamp terminals are optional (option code G5)Product Data Sheet00813-0100-4737, Rev FAAugust 2001 Models 244EH and 244ER4 Materials of ConstructionMountingThe Model 244ER attaches directly to a wall or a DIN rail. TheModel 244EH installs in a connection head or universal headmounted directly on a sensor assembly, apart from a sensorassembly using a universal head, or to a DIN rail using an optionalmounting clip.

7 (See page 9 for more information.)WeightEnclosure Ratings (Model 244EH)Option codes J5 and J6 are NEMA 4X, IP66, and code J6 is CSA Enclosure Type 4 XPERFORMANCE SPECIFICATIONSThe Models 244EH and 244ER maintain a specificationconformance of at least 3 .StabilityRTDs and thermocouples have a stability of of reading C (whichever is greater) for twelve Supply EffectLess than of span per voltVibration EffectThe Model 244EH and Model 244ER are tested to the followingspecifications with no effect on performance:CE Electromagnetic Compatibility Compliance TestingThe Models 244EH and 244ER meet all requirements listed underIEC 61326: Amendment 1, Housing and Terminal Block ConstructionMaterialModel 244 EHNoryl glass reinforcedModel 244 ERLexan polycarbonateCodeOptionsAdd(1)(1) All weights are in grams (ounces).

8 Model 244 EHHead Mount78 ( )J5, J6 Universal Head520 ( )Model 244 ERRail Mount173 ( )FrequencyVibration10 to 60 displacement60 to 2000 Hz3 g peak accelerationRosemount Conformance to SpecificationsYou can be confident that a rosemount product not only meets its publishedspecifications, but most likely exceeds them. Our advanced manufacturing techniquesand use of Statistical Process Control provide specification conformance to at least 3 (1). In addition, our commitment to continual improvement ensures that productdesign, reliability, and performance will improve every example, the Reference Accuracy distribution for the Model 244E TemperatureTransmitter is shown to the right. Our Specification Limits are C, but, as theshaded area shows, approximately 68% of the units perform three times better thanthe limits.

9 Therefore, it is very likely that you will receive a device that performs muchbetter than our published , a vendor who grades product without using Process Control, or who isnot committed to 3 performance, will ship a much higher percentage of units thatare barely within (or even outside of) advertised specification : Accuracy distribution shown is for Model 244E,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 lAccuracy3144-GRAPH 3 2 1 1 2 3 Product Data Sheet00813-0100-4737, Rev FAAugust 20015 Models 244EH and 244 ERAccuracyAccuracy ExampleWhen using a Pt 100 ( = ) sensor input with a 75 to 150 C range, the accuracy will be C of span + C C, whichever is greater.

10 Sample Calculation: [ (150-75)+ ] = C, whichever is less than C, so theaccuracy equals Span(1)Accuracy (whichever is greater)2-, 3-, 4-wire RTDs C F C FPt 100 IEC 751, 1995 ( = ) 200 to 850 328 to of span + C or CPt 100 JIS 1604, 1981 ( = ) 200 to 645 328 to of span + C or CPt 200 IEC 751, 1995 ( = ) 200 to 850 328 to of span or CPt 500 IEC 751, 1995 ( = ) 200 to 850 328 to of span or CPt 1000 IEC 751, 1995 ( = ) 200 to 300 328 to of span or CNi 120 Edison Curve No. 7 70 to 300 94 to of span or CCu 10 Edison Copper Winding No. 1 50 to 250 58 to of span or CThermocouples(2)Type B(3)NIST Monograph 175, IEC 584100 to 1820212 to of span or CType ENIST Monograph 175, IEC 584 50 to 1000 58 to of span or CType JNIST Monograph 175, IEC 584 180 to 760 292 to of span or CType KNIST Monograph 175, IEC 584 180 to 1372 292 to of span or CTy pe NNIST Monograph 175, IEC 584 200 to 1300 328 to of span or CTy pe RNIST Monograph 175, IEC 5840 to 176832 to of span or CType SNIST Monograph 175, IEC 5840 to 176832 to of span or CType TNIST Monograph 175.