Catalog 2004 Rosemount 244ER PC-Programmable …

1 Product Data Sheet00813-0100-4737, Rev GACatalog 2004 Rosemount Accepts a wide variety of 2-, 3-, and 4-wire RTDs and thermocouple sensor types Configure using the Rosemount 244EC Configuration Interface and a standard PC Provides 500 VAC input to output isolation Available in a rail mount package that is designed for the close corridors of a control room External hardware switch provides reliable alarmContentThe Rosemount 244ER ..page Temperature-104 Specifications ..page Temperature-105 Hazardous Locations Certifications ..page Temperature-108 Dimensional Drawings..page Temperature-109 Ordering Information .. page Temperature-110 Rosemount 244ER PC-Programmable Temperature TransmitterProduct Data Sheet00813-0100-4737, Rev GACatalog 2004 Rosemount 244 ERTemperature-104 The Rosemount 244ER PC-Programmable Temperature TransmitterThe Rosemount 244ER is a cost-efficient solution for non-critical temperature monitoring applications.

2 Compared to wiring direct, the 244ER will save money in cabling and installation costs while delivering accurate and reliable 244ER allows for great flexibility in selecting a sensor type that is appropriate for the process being measured. The 244ER accepts inputs from a wide variety of 2-, 3-, and 4-wire RTDs as well as thermocouples, millivolt, and ohm sensor 244ER is designed with 500 VAC input to output isolation. This isolation helps to ensure the integrity of the temperature measurement in industrial environments and not damage sensitive system Rosemount 244EC Configuration Interface consists of a programmer, cables, and configuration software. The 244EC configuration software, when used in conjunction with the interface, provides the tools necessary to select the sensor type, sensor range, and sensor error action in addition to many other Temperature SolutionsRosemount 3144p Temperature TransmitterField mount style available with HART 3244MV Temperature TransmitterField mount style available with FOUNDATION fieldbus and Profibus-PA 644 Smart Temperature TransmitterHead or rail mount styles available with HART and FOUNDATION fieldbus 848T Eight Input Temperature TransmitterEight input transmitter available with FOUNDATION fieldbus 3420 Fieldbus Interface ModuleProvides an interface between FOUNDATION fieldbus instruments and systems without fieldbus capability using standard interface 248 Temperature TransmitterHead mount style (DIN B)

3 Available with HART protocol and complete temperature sensors, thermowells, and extensionsRosemount has a broad offering of RTD and thermocouples that are designed to meet plant Data Sheet00813-0100-4737, Rev GACatalog 2004 Temperature-105 Rosemount 244 ERSpecifications FUNCTIONAL SPECIFICATIONSI nputsUser-selectable using the 244EC Configuration Interface and the 244EC Configuration Software. Sensor terminals are rated to V dc. See Accuracy on page 4 20 mA, linear with temperature for RTDs and thermocouples 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 on to V dc. transmitter power terminals are rated to V ModeThe 244ER features software driven alarm diagnostics and an independent circuit. These features are designed to provide backup alarm outputs in case the microprocessor, electronics, hardware, or software fails.

4 The alarm levels are user-selectable using the failure mode switch. In case of alarm, the position of the jumper determines the direction in which the output is driven (HI or LO). The jumper switch feeds into the digital-to-analog (D/A) converter, which drives the proper alarm output even if the microprocessor fails. The values that the transmitter drives its output in failure mode depends on whether it is factory configured to standard or NAMUR compliant operation. The values for standard and NAMUR-compliant operation are as follows. TABLE 1. Standard vs. NAMUR-compliant specificationsHumidity Limits0 99% relative humidity, non-condensingUpdate TimeApproximately secondsTemperature LimitsOperating Limit 40 to 85 C ( 40 to 185 F)Storage Limit 50 to 120 C ( 58 to 248 F)Turn-on TimePerformance within specifications is less than seconds after power is applied to transmitter when damping value is set to zero secondsPHYSICAL SPECIFICATIONSE lectrical ConnectionsPower and Sensor Terminals Compression screw permanently fixed to front panelCommunication Terminals Clips permanently fixed to front panelMaterials of ConstructionElectronics Housing an Terminal Block Constructon Materials Lexan polycarbonateMountingThe 244ER attaches directly to a wall or a DIN rail.

5 Weight173 g ( oz)PERFORMANCE SPECIFICATIONSS tabilityRTDs and thermocouples have a stability of of reading or C (whichever is greater) for twelve Supply EffectLess than of span per voltVibration EffectThe 244ER is tested to the following specifications with no effect on performance:CE Electromagnetic Compatibility Compliance TestingThe 244ER meets all requirements listed under IEC 61326: Amendment 1, (1)(1) Measured in milliamperesNAMUR- Compliant(1)Linear I I Fail High:21 I 23 (default)21 I 23 (default)Fail Low:I I FrequencyVibration10 to 60 displacement60 to 2000 Hz3 g peak accelerationProduct Data Sheet00813-0100-4737, Rev GACatalog 2004 Rosemount 244 ERTemperature-106 Accuracy TABLE 2. Accuracy/Input OptionsAccuracy ExampleWhen using a Pt 100 ( = ) sensor input with a 75 to 150 C range, the accuracy will be C of span + C or C, whichever is greater. Sample Calculation: [ (150-75)+ ] = C, whichever is less than C, so the accuracy equals OptionsSensor ReferenceInput RangesRecommended Min.

6 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 CType NNIST Monograph 175, IEC 584 200 to 1300 328 to of span or CType 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, IEC 584 200 to 400 328 to of span or CDIN Type LDIN 43710 200 to 900 328 to of span or CDIN Type UDIN 43710 200 to 600 328 to of span or CType W5Re/W26 ReASTME 988-960 to 200032 to of span or CMillivolt Input 10 to 100 mV3 mV + of span2-, 3-, 4-wire Ohm Input0 to 2000 ohms20 + of span(1) No minimum or maximum span restrictions within the input ranges.

7 Recommended minimum span will hold noise within accuracy specification with damping at zero seconds.(2) Total digital accuracy for thermocouple measurement: sum of digital accuracy + C (cold junction accuracy).(3) Accuracy for NIST Type B thermocouple is C from 100 to 300 Conformance to SpecificationsYou can be confident that a Rosemount product not only meets its published specifications, but most likely exceeds them. Our advanced manufacturing techniques and use of Statistical Process Control provide specification conformance to at least 3 (1). In addition, our commitment to continual improvement ensures that product design, reliability, and performance will improve every example, the Reference Accuracy distribution for the 244ER Temperature transmitter is shown to the right. Our Specification Limits are C, but, as the shaded area shows, approximately 68% of the units perform three times better than the limits.

8 Therefore, it is very likely that you will receive a device that performs much better than our published , a vendor who grades product without using Process Control, or who is not committed to 3 performance, will ship a much higher percentage of units that are barely within (or even outside of) advertised specification limits.(1) Sigma ( ) is a statistical symbol to designate the standard deviation from the mean value of a normal : Accuracy distribution shown is for 244E, Pt 100 RTD sensor, range 0 to 100 Specification LimitUpperSpecificationLimitTypical Accuracy3144-GRAPH 3 2 1 1 2 3 Product Data Sheet00813-0100-4737, Rev GACatalog 2004 Temperature-107 Rosemount 244 ERAmbient Temperature Effect Transmitters can be installed in locations where the ambient temperature is between 40 and 85 C ( 40 and 185 F). To maintain excellent accuracy performance, each transmitter is individually characterized over this ambient temperature range at the factory.

9 The transmitters automatically adjust for component temperature drift caused by changing environmental conditions. TABLE 3. Ambient Temperature Effects Temperature Effects ExampleExample 1:When using a Type J thermocouple with a 50 C to 600 C temperature range at an ambient temperature of 60 C and a reading of 25 C, the ambient temperature effect according to C is: [fixed value (a) + (% of reading (b) x reading) = (% of span (c) x span)] = [ + ( x ( 25)) + ( x 650)] = C per the ambient temperature 40 C above reference condition temperature, the total ambient temperature effect is: 40 x = CExample 2:When using a Type J thermocouple with a 50 C to 600 C temperature range at an ambient temperature of 60 C and a reading of 525 C, the ambient temperature effect according to C is: [fixed value (a) + (% of reading (b) x reading) = (% of span (c) x span)] = [ + ( x 525) + ( x 650)] = C per the ambient temperature 40 C above reference condition temperature, the total ambient temperature effect is.

10 40 x = CExample 3:The worst case error would be: Reference Accuracy + CJC Accuracy + Temp Effects = C + C + C = probably error:Sensor Options(1)Fixed Value% of reading% of Span(if reading > 0)(if reading is < 0)2-, 3-, 4-wire RTDsPt 100 ( = ) C of spanPt 100 ( = ) C of spanPt C of spanPt C of spanPt C of spanNi C of spanCu C of spanThermocouplesType B (100 C reading < 300 C) C of span(300 C reading < 1000 C) C of span(reading 1000 C) C of spanType C of spanType J, K, DIN C of spanType C of spanType R, S (reading < 200 C) C of span(reading 200 C) C of spanType T, DIN C of spanType W5 C of C Millivolt mV of span2-, 3-, 4-wire of span(1) Change in ambient is with reference to the calibration temperature of the transmitter 68 F (20 C) from ++ C=Product Data Sheet00813-0100-4737, Rev GACatalog 2004 Rosemount 244 ERTemperature-108 Product CertificationsApproved Manufacturing LocationsRosemount Inc.