Temperature head transmitter itemp TC TMT 188

Transcription

1 Technical information TI 077R/24/ae No.: Temperature head transmitter itemp TC TMT 188 Universal head transmitter for thermocouples for an economical, high accuracy temperature monitoring. Fixed range measurement, for installation in a DIN B sensor head Application Economical and technical alternative to direct wiring to DCS or PLC. Fixed adjusted temperature head transmitter for converting various input signals into a scalable 4 to 20 ma analog output signal 2-wire transmitter for a linear temperature proportional analog output Features and benefits High accuracy: 0.08% of span Breakdown information in event of sensor break or short-circuit, enables a quick maintenance intervention Galvanic isolation 2kV (from the sensor input to the output) Long term stability: < 0.05% Electromagnetic compatibility to IEC for use in noisy environments Fully potted electronics allow humidity Captive screws for ease of connection Approvals: FM, CSA and ATEX for high safety standards UL recognized component to UL GL German Lloyd marine approval

2 Operation and system construction Measurement principle Measurement system Electronic monitoring and conversion of input signals in industrial temperature measurement. The itemp TC TMT 188 temperature head transmitter is a two wire transmitter with an analog output. It has measurement input for thermocouples (TC). Input Thermocouples (TC) Input Designation Measurement range limits to NIST Monograph 175, IEC 584 to ASTM E988 to DIN B (PtRh30-PtRh6) [1] E (NiCr-CuNi) J (Fe-CuNi) K (NiCr-Ni) N (NiCrSi-NiSi) R (PtRh13-Pt) S (PtRh10-Pt) T (Cu-CuNi) C (W5Re-W26Re) D (W3Re-W25Re) L (Fe-CuNi) U (Cu-CuNi) 32 to 3308 F (0 to C) -328 to 1679 F (-200 to +915 C) -328 to 2192 F (-200 to C) -328 to 2501 F (-200 to C) -454 to 2372 F (-270 to C) 32 to 3214 F (0 to C) 32 to 3214 F (0 to C) -328 to 752 F (-200 to C) 32 to 4208 F (0 to C) 32 to 4523 F (0 to C) -328 to 1652 F (-200 to C) -328 to 1112 F (-200 to C) min. measurem. range Cold junction Cold junction accuracy Sensor current internal (Pt100) ± 1.8 F (± 1 C) 30 ma Output Output (analog) Output signal Transmission as Source impedance Input current required Current limit Switch on delay Reply time 4 to 20 ma temperature linear (Vpower supply - 8 V) / A (current output) e. g. (24 V - 8 V)/0.025 A = 640 Ω 3.5 ma 25 ma 4 s (during power up Ia = 3.8 ma) 1 s Breakdown information to NAMUR NE 43 Breakdown information is created when the measuring information is invalid or not present anymore and gives a complete listing of all errors occurring in the measuring system. Under ranging Standard 3.8 Over ranging Standard 20.5 Signal (ma) Sensor break; sensor short circuit low To NAMUR NE Sensor break; sensor short circuit high To NAMUR NE ma Electrical connection Power supply Ub = 8 to 35 V, polarity protected Galvanic isolation (In/out) Û = 3.75 kv AC Allowable ripple Uss 5 V at Ub 13 V, fmax. = 1 khz [1] High measuring error increase for temperature lower than 572 F (300 C).

3 Accuracy Reference conditions Calibration temperature 73.4 F ± 9 F(23 C ± 5 C) Thermocouple (TC) Type K, J, T, E, L, U N, C, D S, B, R MoRe5-MoRe41 Measurement accuracy typ. 0.9 F (0.5 C) typ. 1.8 F (1.0 C) typ. 3.6 F (2.0 C) Influence of the internal reference junction Pt100 DIN IEC 751 Cl. B Influence of power supply ±0.01%/V deviation from 24 V [1] Load influence ±0.02%/100 Ω [1] Temperature drift Thermocouple (TC): Td =±(8.3ppm/ F* max. meas. range ppm/ F * preset meas. range) * ϑ ϑ = Deviation of the ambient temperature according to reference condition (73.4 F±9 F). Long term stability 0.18 F/Year [2] [2] [3] ( 0.1 C/Year) or 0.05%/Year Application conditions Installation conditions Installation angle No limit Installation area Connection head accord. to DIN Form B; TAF 10 field housing Ambient conditions Ambient temperature -40 to +185 F (-40 to 85 C), for Ex-areas, see Ex-certification or control drawing Storage temperature -40 to +212 F (-40 to 100 C) Climatic class As per IEC , Class C Moisture condensation Allowed Ingress protection IP00, NEMA 4 (IP66) installed in TAF 10 field housing Vibration protection 4g / 2 to 150 Hz according to IEC Electromagnetic compatibility (EMC) CE Electromagnetic Compatibility Compliance The device meets all requirements listed under IEC Amendment 1, 1998 and NAMUR NE 21. This recommendation is an uniform and practical way of determining whether the devices used in laboratory and process control are immune to interference with an objective to increase its functional safety. Discharge of static electricity IEC kv cont., 8 kv air Electromagnetic fields IEC to 1000 Hz, 10V/m Burst (signal) IEC kV Transient voltage IEC kv unsym. / 0.5 kv sym. HF coupling IEC to 80 Mhz, 10 V Mechanical construction Dimensions Dimensions in inch (mm) [1] Percentages refer to the full scale value. [2] Values under reference operating conditions. % refer to the span. The highest value is valid [3] % is related to the adjusted measurement range (the value to be applied is the greater).

4 Weight approx. 1.4 oz (40 g) Materials Terminals Housing: PC Potting: PUR Cable up to max. 16 AWG - secure screws Terminal connections Power supply and current output Sensor connection Certification CE mark This unit complies with the legal requirements laid out within the EU regulations. GL approval GL Germanische Lloyd ship building approval UL recognized UL recognized component to UL Hazardous area approvals FM IS, Class I, Div 1+2, Group A, B, C, D CSA IS, Class I, Div 1+2, Group A, B, C, D ATEX II 1G EEx ia IIC T6/5/4 ATEX II 3G EEx na IIC T4/T5/T6 ATEX II 3D in compliance with EN IEC 60529: Degrees of protection by housing (IP-Code) IEC 61010: Safety requirements for electrical measurement, control and laboratoy instrumentation Other standards and guidelines IEC 61326: Electromagnetic compatibility (EMC requirements) NAMUR: Standardization association for measurement and control in chemical and pharmaceutical industries. ( NEMA: Standardization association for the electrical industry Further documentation System information SI 008R/24/ae Operating manual itemp Pt100 TMT 187/TC TMT 188 BA 104R/24/ae Operating short manual itemp Pt100 TMT 187/TC TMT 188 KA 120R/09/a3 Operating short manual TAF 10 Field housing KA 093R/09/a2 Additional documentation for use in explosion-hazardous areas: ATEX II 1G XA 004R/09/a3 ATEX II 3G XA 010R/09/a3 ATEX II 3D XA 026R/09/a3 Control Drawings: FM IS, NI CSA IS, NI

5 Howtoorder itemp TC TMT 188 head transmitter Head transmitter for temperature measurement, connection to thermocouples (TC), internal reference junction, 2-wire technology with 4 to 20 ma analog output, In/Out galvanic isolation, failure mode according to NE 43, for mounting in Form B head to DIN 43729, UL recognized component, ship building approval GL. Certification A - Version for non Ex areas, UL recognized, ship building approval GL B - ATEX II 1G EEx ia IIC T4/T5/T6 C - FM IS, Class I, div. 1+2, Group A, B, C, D D - CSA IS, Class I, div. 1+2, Group A, B, C, D E - ATEX II 3G EEx na IIC T4/T5/T6 F - ATEX II 3D G - ATEX II 1G EEx ia IIC T6, II 3D H - ATEX II 3G EEx na IIC T6, II 3D Temperature sensor B - Type B -32 to 3308 F (0 C C) min. C - Type C -32 to 4208 F (0 C C) min. D - Type D -32 to 4523 F (0 C C) min. E - Type E -328 to 1679 F (-200 C C) min. J - Type J -328 to 2192 F (-200 C C) min. K - Type K -328 to 2501 F (-200 C C) min. L - Type L -328 to 1652 F (-200 C C) min. N - Type N -454 to 2372 F (-270 C C) min. R - Type R -32 to 3214 F (0 C C) min. S - Type S -32 to 3214 F (0 C C) min. T - Type T -328 to 752 F (-200 C C) min. U - Type U -328 to 1112 F (-200 C C) min. Measurement range [1] LA to 140 F NA - 0 to 100 F NB - 0 to 200 F NC - 0 to 300 F ND - 0 to 500 F NE - 0 to 750 F NG - 0 to 1000 F NI - 0 to 1500 F NK - 0 to 2500 F NL - 0 to 3200 F AA - 0 to 100 C AB - 0 to 150 C JA to 200 C Model A - Standard model B - Works calibration certificate, 6 test points K - Standard model, North America region TMT188- Order-Code [1] More ranges available on request

6 TI 077R/24/ae/04.03 Mat.-Nr CV5