Contrans T TEU 471, TEU 471-Ex. Intelligent four-wire temperature transmitters EN

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1 Contrans T TEU 471, TEU 471-Ex Intelligent four-wire temperature transmitters Input/sensor connection: Resistance thermometers (2-, 3-, 4-wire circuit) Thermocouples (without, with internal/external reference junction) Resistance teletransmitters Ω, mv, ma, V sensors Output 0/ ma, V Digital interface for communication LCI (parameter setting at the factory) FSK (remote parameter setting, bus operation) Parameter setting with IBIS PC software package (menu-driven to VDI/VDE 2187) Validity check of the inputs Diagnostic and commissioning functions Assistance at every processing level Feedback documentation Rugged compact case in degree of protection IP 20 for rail mounting Digital, low-drift measured-value processing Continuous sensor and self-monitoring Default value strategy in the event of faults 1 or 2 relay outputs for fault or alarm value signalling Explosion protection, intrinsically safe [EEx ia] IIC or [EEx ib] IIC Elektromagnetic compatibility (EMC) General interference immunity to NAMUR recommendation Test socket for the output Electrical isolation

2 Description The temperature transmitter transforms the signal coming from the sensor into a load-independent direct current or voltage signal. The input signals are led to the measuring point selector switch MUX via the input protection circuit. The standard input variables (mv,, V, ma) are matched to the input voltage range of the amplifier by means of a filter network. The pulse-width modulator PWM converts the voltage coming from the amplifier into a pulse-pause ratio. Correction values for the zero and slope are determined from the test measurements (zero and reference voltage) and are stored. The (sensor) break monitoring checks the sensor impedance for a maximum value. The CPU fulfils several tasks. Routines of the monitoring (dead man, watchdog), of the A/D converter (read-in, validity check,...), of the communication (read, write), of the measured value processing (linearization, damping,...) are called up one after the other. The ROM contains the firmware of the transmitter. The EEPROM contains all user-specific parameter setting data (e.g. measuring range, linearization, tag number, etc.) The EE- PROM also contains data concerning the transmitter only, e.g. deviations from the reference voltage or the serial number. In addition, 3 LEDs and 2 relays can be activated. Sensors Ex Filter Input protect. Break monitoring Reference MUX amplifier PWM Fig. 1 Functional diagram (Ex )i electr. isol. EEPROM None Ex CPU ROM RAM 3 LEDs Electrical power is supplied via a transformer with an electrically isolated output voltage. For communicating with the PC either the LKS interface (3 V CMOS) or the FSK interface (electrically isolated) is used. Via an A/D and a U/I converter the signal is made available to the analogue output. E/A FSK LKS Analogue output Relays outputs Z EN power supply Functions modules The function modules shown are activated via the IBIS PC software depending on the measuring task. In the menu branch diagnosis the "readable variables" are displayed. Measured value processing Measuring range adjustment (measuring circuit, sensor selection); sensor break monitoring (break, short circuit), referrence junction measurement for the internal reference junction temperature. Fig. 2 Functions modules Measured value processing Reference junction Auxiliary input Input 1 2 Input weighting value n n Reference junction correction lin S lin T 3 Linearization Mean value Difference lin T lin T Damping Scaling Analog output Input weighting Generation of mean value in case of interconnecting several sensors at one input. Generation of sensor characteristics with the same basic data (e.g. Pt 1000 on the basis of the Pt 100 characteristic - 10 x Pt 100). Reference junction correction Correction of the measured value with the internal/external reference junction value in case of measuring with thermocouples. Linearization/mean value/difference to standardized or customized characteristics (max. 32 tiepoints); mean and difference value generation of input and auxiliary input. The characteristics of the standardized sensors are stored in the transmitter. Damping Filter with 1 st order delay. Scaling Lower-range value and upper-range value. Status Readable variables 1 = XEU1 - Sensor signal input 2 = XEU2 - Sensor signal auxiliary input 3 = Tref - Reference junction temperature Default value 4 = WEU3 - Linearized measured value 5 = WMAT - Percentage value of output span 6 = WOUT - Output value in ma/v Z EN Analogue output Adjustment of the output signal for current/voltage, underranging/overranging, behaviour in case of a sensor/apparatus fault. Binary signals (Not shown in the figure). Assignment LED 1+2, binary output 1+2 for signalling of sensor fault, apparatus fault, alarm value. Page 2 of

3 Technical data Input Measuring types Simple: 1 sensor at input Mean value: 1 sensor at input and 1 sensor at auxiliary input or sensors in series at input Difference: 1 sensor at input and 1 sensor at auxiliary input (Mean value, difference only for Ω, mv sources) Measuring circuit (MK) combinations can be switched over MK 41 MK 42 Full modulation Ω mv Ω mv Min. span 6.7 Ω 2 mv 58 Ω 2 mv MK V 0.5 V MK ma 1 ma Measuring range Can be parameterized Input current 100 na/mv for thermocouple measurement Measuring current MK 41: approx ma MK 42: approx. 35 µa Input resistance MK 44: 100 kω MK 45: 5 Ω Overload limit Thermocouple, mv measurement (MK 41/MK 42): V Resistance thermometer and resistance measurement (MK 41, MK 42): Open or short-circuited input permitted Voltage measurement (MK 44): V Current measurement (MK 45): ma Sensor monitoring mv measurement: Break: response threshold > 1.5 MΩ or gradient > 3 mv/s or > 120 mv Ω measurement Response thresh. in case of sensor break: MK 41: > 391 Ω Response thresh. in case of sensor break: MK 42: > 3250 Ω Response threshold in case of short circuit: < 5 Ω Line resistance (Rm = measuring resistance; RL = line resistance of one wire) 2-wire circuit: 10 Ω max. for both wires For MK 41 (mean value, difference): Rm1 + (2RL + Rm2 + (2RL2) < 415 Ω 3-wire circuit: 10 Ω max. per wire 4-wire circuit: 50 Ω max. per wire For MK 41: (Rm + RL) < 415 Ω Internal reference junction Separate input for Pt 100 in 2-wire circuit Linearization on the basis of DIN IEC standard characteristics Resistance thermometers Pt 100, Ni 100 (Extended to e.g. Pt 1000, Ni 50, by means of weighting Pt 100, Ni 100) Thermocouples of type B, E, J, K, L, N, R, S, T, U or customized (32 tiepoints max.) Max. permitted potential 230 V AC Output Output signal (direct / reverse action) 0/ ma (open output permitted) Load 750 Ω (test jack not active) 2) Load 700 Ω (test jack active - standard) V (short-circuit proof) Load > 10 kω Residual ripple 0.5 % Max. permitted potential 50 V AC Full modulation range (can be paramterized) Underranging: /4 ma (test jack not active) 2) /4 ma (test jack active) V Overranging: ma ma (for a load 600 Ω or 2 binary outputs) V V (for 2 binary outputs) Output behaviour in the event of fault Fault: Sensor fault or Fault: Sensor/apparatus fault Underranging (= adjusted underranging) Overranging (= adjusted overranging) Default value (parameterizable ma, V) 3) Hold last valid value Binary outputs 1 or 2 relays with changeover contact Switching capacity Pmax = 10 W, 10 VA, cosϕ 0.7 Switching current IUC max = 0.5 A Switching voltage UUC max = 50 V Damping Filter with 1 st order delay (τ = 0 s; s) Adjusted time constant τ Response time T 0 s typical 0.8 s (max. 1 s) 0.9 s approx. 2.7 s 1 s approx. 3.3 s 1.5 s approx. 5.8 s 2 s approx. 8.2 s > 5 s τ Observe certificate of conformity for TEU 471-Ex 2) Test jack bridged 3) Can also be parameterized via the adjusted modulation range (e.g. for over-/underranging signal) Page 3 of 8

4 Technical data Interfaces Local communication interface (LKS) For parameter setting at the factory (Power supply from PC) Frequency Shift Keying (FSK) For remote parameter setting and bus operation Data format HART protocol Power supply Supply voltage 24 V UC 115 V AC 230 V AC (can be switched over to 24 V UC) Alternating voltage -15 % %, Hz Direct voltage V Residual ripple 20% within tolerance range Power consumption 24 V UC: approx. 1.2 W, 1.5 VA 115 V AC: approx. 2 W, 5 VA 230 V AC: approx. 2 W, 8 VA Characteristics under nominal conditions to DIN IEC 770 (MV = measured value; K1, K2, K3 see table) (Examples of calculation, see 10/ EN) Measuring deviation (referred to set span) 0.1 % MV % + K1 Additional error for internal reference junction: 0.25 K Additional error MK 44, MK 45: 0,1 % MV K1 K2 K3 Ω (MK 4 80 mω 20 mω 10 mω Ω (MK 42) 0.75 Ω 0.2 Ω 0.09 Ω mv (MK 41/42) 10 µv 5 µv 2 µv V (MK 44) 1 mv 0.5 mv 0.2 mv ma (MK 45) 2 µa 1 µa 0.4 µa Resistance 0.25 K 0.05 K K thermometer (MK 4 Resistance thermometer (MK 42) 0.25 K 0.05 K 0.1 K Thermocouple > -150 C, except for ttype B (MK 41/MK 42) Thermocouple Type E, K, N, T C Type B > 300 C (MK 41/MK 42) 10 µv 2) +0.2 K 10 µv 2) or 0.2 K (larger value applies) 10 µv 2) +0.6 K 10 µv 2) or 0.6 K (larger value applies) 2 µv 2) 2 µv 2) Non-conformity (contained in measuring deviation) 0.1 % + K2 Effects Ambient temperature (referred to set span) (0.05 % MV % + K3)/10 K In case of internal reference junction additionally 0.1 K / 10 K Power supply (referred to set span) < 0.05 % with 10 % voltage change < 0.05 % with Hz frequency change Effects in the output (referred to output span) With current 0.1 % in load range Ω With voltage 0.1 % of 10 kω... Parasitic voltage in the input (referred to set span) 50 Hz symmetrical < 0.5 % with Ustör(ss) = 0.3 span (τ = 0 s) (increased residual ripple) < 0.5 % with Ustör(ss) = 4 span (τ 0.9 s) 50 Hz asymmetrical (up to Ueff. = 250 V) < % full modulation/span (τ 0.9 s) < 0.05 % full modulation/span (τ = 0 s) DC component of fault voltage (up to U = 250 V) < % full modulation/span (τ 0.9 s) < 0.05 % full modulation/span (τ = 0 s) Time behaviour Response time (damping not active) Typically 0.8 s (1 s max.) Electromagnetic compatibility (EMC) General interference immunity to NAMUR recommendation for: Mains supply tolerances Mains interruption (max. 1 relay active) General and safety data Climatic capabilities Climatic category JSF to DIN Ambient temperature C Transportation and storage temperature C Relative humidity 75 % Condensation None Mechanical stress Tested to DIN IEC 68 Part 2-27 and 68 Part 2-6 Transport Shock: 30g/18 ms During operation Vibration: 2g/± 0.15 mm/ Hz/3 x 5 cycles 2g/± 10 mm/ Hz/3 x1 cycle 2) Compliance with NAMUR guideline on mains interruption only applies to 230 V AC Use temperature corresponding to the slope of 10 µv or 2 µv. Page 4 of

5 Technical data Connections, case, mounting Electrical connections Degree of protection to DIN Class of protection to VDE 0411, IEC 348 Explosion protection Manufacturer s code 49/11-45 Ex Certificate of conformity PTB No. Ex-93.C.2015 X Screw terminals for 2.5 mm 2 incl. thimbles IP 20 Degree of contamination II Overvoltage category II Input/output; III Netz Test voltage to VDE 0411 Mains against inp./output 4 kv Input against output 4 kv Outputs against each other 0.75 kv Input/output/mains against protective conductor 1.5 kv Material Polycarbonate GR Colour RAL 7032 Position Any Weight Approx. 1 kg Disconnect Y capacitors I Input circuit Type of protection intrinsic safety TEU 471-Ex.A: [EEx ia] IIC / IIB or TEU 471-Ex.B: [EEx ib] IIC / IIB Ambient temperature +70 C max. Mounting Outside the hazardous area For maximum values and permitted connection data of the transmitter see Table Maximum values of the transmitter Resistance measurement Thermocouple measurement Ex. A Ex. B Ex. A Ex. B Uo 8.9 V 8.9 V 8.9 V 8.9 V IK 23.9 ma 23.9 ma 23.9 ma 23.9 ma P 160 mw 160 mw 160 mw 160 mw Li 330 µh 500 µh 330 µh 500 µh Ci 397 nf 500 nf 397 nf 500 nf } Perm. La 2.1 mh 49.9 mh II B see Perm. Ca 2320 nf 69.5 µf certificate Perm. of La 1.6 mh 49.9 mh conformity Perm. } II C Ca 295 nf 6.5 µf Connection diagrams T1 11 T2 T1 a) b) c) d) e) f) g) T L/1 N/2 PE FSK + 0 L1 N h) j) k) l) m) n) o) Z a) Resistance thermometer or resistance measurement in two-wire circuit (jumper for MK 42 or upper-range value > 391 Ω) b) Resistance thermometer or resistance measurement in three-wire circuit (jumper for MK 42 or upper-range value > 391 Ω) c) Resistance thermometer or resistance measurement in four-wire circuit (jumper for MK 42 or upper-range value > 391 Ω) d) Resistance thermometer or resistance measurement in two-wire circuit difference (T1-T2) or mean value e) Resistance teletransmitter in two-wire circuit (MK 42) (jumper for MK 42 or upper-range value > 391 Ω) f) Thermocouple or mv measurement (with/without internal referrence junction g) Thermocouple or mv measurement, difference (T1-T2) or mean value h) Current or voltage measurement j) Protective conductor k) Output signal current or voltage l) Binary output 1 m) Binary output 2 (not for FSK version) n) FSK connection o) Power supply Page 5 of 8

6 Standard parameters Measuring circuit combination MK 41/42 MK 44 MK 45 Tag number / / / Measuring point description / / / Bus address 00000: : :00 Type of measurement Single Single Single Sensor Pt 100/3-wire circuit V-linear ma-linear Measuring range C V ma Output ma ma ma Underranging value 3.6 ma 3.6 ma 3.6 ma Overranging value 22 ma 22 ma 22 ma Output behaviour in case of sensor fault Overranging Damping 0.90 s 0.90 s 0.90 LED1/binary output 1 Assignment Sensor fault Alarm value Alarm value Behaviour min. min. Circuit Operating current Operating current Operating current Switch point 0 V 0 ma LED2/binary output 2 Assignment Alarm value Alarm value Alarm value Behaviour max. max. max. Circuit Operating current Operating current Operating current Switch point 100 C 10 V 20 ma Dimensional drawings Z Z Dimensions in mm Page 6 of

7 Information for customized parameter setting Input/ Thermocouple type B E J K L N R S T U sensor: Other type Internal refer. junction External With temperature, Resistance thermometer Pt 100 Ni 100 Other type 4) Without Sensor circuit 3-wire 2) 4-wire 2) 2-wire Resistance teletransmitter Ω Current ma 3)2) Voltage V 3)2) Measuring: Start, End, range Unit: C K F RK Other unit Output: At current output ma ma Behaviour upon Sensor fault 4) Sensor and unit fault 4) Overranging Underranging Hold last valid value Default value, 5) Binary output 1: Sensor fault signalling 6) Signalling of sensor and unit fault 6) LED 1 or alarm value signalling Behaviour: max. min. Switch point 4), Binary output 2: Sensor fault signalling 6) Signalling of sensor and unit fault 6) LED 2 or alarm value signalling Behaviour: max. min. Switch point 4), Additional information (if necessary) Tag number: Type of measurement 1 Simple (1 sensor at the input) Mean value ( sensors in series at the input) Mean value ( 1 sensor each at the input and auxiliary input) Difference (1 sensor each at the input [+] and auxiliary input [ ]). Damping: Time constant, (s) Output: Reverse action characteristic Entry fields = mark with cross = please enter value If linearization is required, please attach linearization table (max. 32 tiepoints) Code No. V45 2) Not for measurement types 4 and 5 3) Single-channel only 4) See measuring range for unit 5) Unit as for output signal (ma/v) 6) Not for current and voltage measurement Stock versions (set to standard parameters) Explosion Input Output Binary Interface Power Catalog No. Delivery time L6 1 wk protection signals supply DM None MK41 0/ ma none LKS 230 V AC ** None MK 41 0/ ma None LKS 24 V UC ** None MK 41 0/ ma 2 relays LKS 230 V AC ** None MK 41 0/ ma 2 relays LKS 24 V UC ** EExib MK 41 0/ ma None LKS 24 V UC ** Business unit temperature transmitters and process interface, Alzenau Product support: Alfred Streißguth, phone +49 (60 23) , fax Page 7 of 81

8 Contrans T TEU 471, TEU 471-Ex Intelligent four-wire temperature transmitters Ordering information Catalog No Code EUR LZ/deliv. Contrans T Transmitter TEU 471, TEU 471-Ex V11471A ,00 ** Explosion protection None 1-4 W Input EEx ib 2 28,20 ** 4 W Input EEx ia 3 28,20 ** 4 W Input (measuring circuit combination MK) MK 41/42 Temperature measurement/resistance teletransmitter 1 - measurement MK 44 Voltage measurement (without explosion protection only) 4 9,74 ** MK 45 Current measurement (without explosion protection only) 5 9,74 ** Output 0/ ma V Binary signals None 0-1 binary output with relay (NO contact) 1 54,30 ** 2 binary outputs with relay (NO contact) (with LKS interface only) 2 81,70 ** Interface LKS (local communication interface) for parameter setting at the factory 1 - FSK (frequency shift keying) for remote parameter setting and bus operation 4 73,20 ** Power supply 230 V AC can be switched over to 24 V UC) 1 9,22 ** 115 V AC (without explosion protection only) 3 9,22 ** 24 V UC 5 - Additional Ordering information Customized parameter setting (Enclose questionnaire for each unit) ,90 ** Operating manual (specify total quantity required) German (no specification for 1 copy) (...pcs.) Z2D 8,69 ** English (always state Code-No.) (...pcs.) Z2E 8,69 ** French (always state Code-No.) (...pcs.) Z2F 8,69 ** 1 copy without extra charge Accessories / add-on parts Catalog No EUR LZ/deliv. Software IBIS application TEU 471 see data Sheet V11497A ,70 * 1 W LKS adapter see data Sheet ,80 * 1 W FSK modem with connection cable see data Sheet ,00 * 1 W Module with 1 relay output ,40 * 1 W Module with 2 relay outputs ,30 * 1 W Set of resistors for changing the measuring circuit combinations ,53 * 1 W Parameter setting program Smart Vision see ABB Automation Products GmbH Borsigstrasse 2 D Alzenau Phone +49 (0) Fax +49 (0) Subject to technical changes. Printed in the Fed. Rep. of Germany 10/ 10:99