© Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART ■ Overview ■ Application SITRANS TH300 transmitters can be used in all industrial sectors. Due to their compact size they can be installed in the connection head type B (DIN 43729) or larger. The following sensors/signal sources can be connected over their universal input module: • Resistance thermometers (2, 3 or 4-wire system) • Thermocouples • Resistance-based sensors and DC voltage sources The output signal is a direct current from 4 to 20 mA in accordance with the sensor characteristic, superimposed by the digital HART signal. Transmitters of the "intrinsically safe" type of protection can be installed within potentially explosive atmospheres. The devices comply with the Directive 2014/34/EU (ATEX), as well as FM and CSA regulations. ■ Function "HART" to beat - the universal SITRANS TH300 transmitter • Two-wire devices for 4 to 20 mA, HART • Mounting in the connection head of the temperature sensor • Universal input for virtually any type of temperature sensor • Configurable over HART The SITRANS TH300 is configured over HART. This can be done using a handheld communicator or even more conveniently with a HART modem and the SIMATIC PDM parameterization software. The configuration data are then permanently stored in the non-volatile memory (EEPROM). ■ Benefits • Compact design • Flexible mounting and center hole allow you to select your preferred type of installation • Electrically isolated • Test sockets for multimeters • Diagnostics LED (green/red) • Sensor monitoring open circuits and short-circuits • Self-monitoring • Configuration status stored in EEPROM • SIL2 (with Order code C20), SIL2/3 (with C23) • Expanded diagnostic functions, such as slave pointer, operating hours counter, etc. • Special characteristic • Electromagnetic compatibility to EN 61326 and NE21 Once the sensors and power supply have been correctly connected, the transmitter outputs a temperature-linear output signal and the diagnostics LED displays a green light. In the case of a sensor short-circuit, the LED flashes red, an internal device fault is indicated by a steady red light. The test socket can be used to connect an ammeter at any time for monitoring purposes and plausibility checks. The output current can be read without any interruption, or even without opening the current loop. SITRANS TH200/TH300 (2) Test TC/RTD sensor +1 A D Input A/D Sensors μC1 μC2 μC1 Analog-digital converter Resistance thermometer, thermocouple, resistance-based sensor, mV sensor Microcontroller, secondary circuit (1) D A 4 ... 20 mA Uaux, Iout -2 Output μC2 D/A Uaux Iout Microcontroller, primary circuit Digital-analog converter Auxiliary power supply Output current (1) Electrically isolated (2) LED SITRANS TH 300 function diagram Siemens FI 01 · 2016 2/127 2 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART ■ Technical specifications Input Resistance thermometer 2 Measured variable Temperature Sensor type • to IEC 60751 Pt25 … Pt1000 • To JIS C 1604; a = 0.00392 K-1 Pt25 … Pt1000 • to IEC 60751 Ni25 … Ni1000 • Special type over special characteristic (max. 30 points) Sensor factor 0.25 ... 10 (adaptation of the basic type, e.g. Pt100 to version Pt25 ... 1000) Units °C or °F Response time 250 ms for 1 sensor with opencircuit monitoring Open-circuit monitoring Always active (cannot be disabled) Short-circuit monitoring can be switched on/off (default value: OFF) Measuring range parameterizable max. 0 ... 2200 (see table "Digital measuring errors") Min. measured span 5 ... 25 (see table "Digital measuring errors") Characteristic curve Resistance-linear or special characteristic Thermocouples Measured variable Temperature Sensor type (thermocouples) Connection • Standard connection • Generation of average value • Generation of difference • Type B Pt30Rh-Pt6Rh to DIN IEC 584 • Type C W5 %-Re acc. to ASTM 988 2 identical resistance thermometers in 2-wire system for generation of average temperature • Type D W3 %-Re acc. to ASTM 988 • Type E NiCr-CuNi to DIN IEC 584 2 identical resistance thermometers (RTD) in 2-wire system (RTD 1 – RTD 2 or RTD 2 – RTD 1) • Type J Fe-CuNi to DIN IEC 584 • Type K NiCr-Ni to DIN IEC 584 • Type L Fe-CuNi to DIN 43710 • Type N NiCrSi-NiSi to DIN IEC 584 • Type R Pt13Rh-Pt to DIN IEC 584 Pt10Rh-Pt to DIN IEC 584 1 resistance thermometer (RTD) in 2-wire, 3-wire or 4-wire system Interface • Two-wire system Parameterizable line resistance 100 (loop resistance) • Three-wire system No balancing required • Type S • Four-wire system No balancing required • Type T Cu-CuNi to DIN IEC 584 Sensor current 0.45 mA • Type U Cu-CuNi to DIN 43710 Response time 250 ms for 1 sensor with opencircuit monitoring Units °C or °F Open-circuit monitoring Always active (cannot be disabled) Short-circuit monitoring can be switched on/off (default value: ON) Measuring range parameterizable (see table "Digital measuring errors") Min. measured span 10 °C (18 °F) Characteristic curve Temperature-linear or special characteristic Resistance-based sensors Measured variable Actual resistance Sensor type Resistance-based, potentiometers Units Connection • Normal connection 1 resistance-based sensor (R) in 2-wire, 3-wire or 4-wire system • Generation of average value 2 resistance-based sensors in 2-wire system for generation of average value • Generation of difference 2 resistance thermometers in 2-wire system (R1 – R2 or R2 – R1) Interface • Two-wire system Parameterizable line resistance 100 (loop resistance) • Three-wire system No balancing required • Four-wire system No balancing required Sensor current 0.45 mA 2/128 Siemens FI 01 · 2016 Connection • Standard connection 1 thermocouple (TC) • Generation of average value 2 thermocouples (TC) • Generation of difference 2 thermocouples (TC) (TC1 – TC2 or TC2 – TC1) Response time 250 ms for 1 sensor with opencircuit monitoring Open-circuit monitoring can be switched off Cold junction compensation • Internal With integrated Pt100 resistance thermometer • External With external Pt100 IEC 60571 (2-wire or 3-wire connection) • External fixed Cold junction temperature can be set as fixed value Measuring range parameterizable (see table "Digital measuring errors") Min. measured span Min. 40 ... 100 °C (72 ... 180 °F) (see table "Digital measuring errors") Characteristic curve Temperature-linear or special characteristic mV sensor Measured variable DC voltage Sensor type DC voltage source (DC voltage source possible over an externally connected resistor) Units mV Response time 250 ms for 1 sensor with opencircuit monitoring Open-circuit monitoring Can be switched off © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART Measuring range -10 ... +70 mV -100 … +1100 mV Min. measured span 2 mV or 20 mV Overload capability of the input -1.5 ... +3.5 V DC Input resistance 1 M Characteristic curve Voltage-linear or special characteristic Construction Material Molded plastic Weight 50 g (0.11 lb) Dimensions See "Dimensional drawings" Cross-section of cables Max. 2.5 mm² (AWG 13) Degree of protection to IEC 60529 Output • Enclosure IP40 Output signal 4 ... 20 mA, 2-wire with communication acc. to HART Rev. 5.9 • Terminals IP00 Auxiliary power 11 ... 35 V DC (to 30 V for Ex ia and ib; to 32 V for Ex nA/nL/ic) Explosion protection ATEX Max. load (Uaux –11 V)/0.023 A Overrange 3.6 ... 23 mA, infinitely adjustable (default range: 3.80 mA ... 20.5 mA) Error signal (e.g. following sensor fault) (conforming to NE43) Certificates and approvals EC type test certificate PTB 05 ATEX 2040X • "Intrinsic safety" type of protection II 1 G Ex ia IIC T6/T4 II 2 (1) G Ex ia/ib IIC T6/T4 II 3(1) G Ex ia/ic IIC T6/T4 II 1D Ex iaD 20 T115 °C 3.6 ... 23 mA, infinitely adjustable (default value: 22.8 mA) • "Operating equipment that is nonignitable and has limited energy" type of protection II 3 G Ex nL IIC T6/T4 II 3 G Ex nA IIC T6/T4 Sample cycle 0.25 s nominal Explosion protection: FM for USA Damping Software filter 1st order 0 ... 30 s (parameterizable) Protection Against reversed polarity Electrically isolated Input against output (1 kVeff) • FM approval FM 3024169 • Degree of protection IS / Cl I, II, III / Div 1 / GP ABCDEFG T6, T5, T4 Cl I / ZN 0 / AEx ia IIC T6, T5, T4 NI / Cl I / Div 2 / GP ABCDFG T6, T5, T4 NI / Cl I / ZN 2 / IIC T6, T5, T4 Measuring accuracy Digital measuring errors See Table "Digital measuring errors" Reference conditions Explosion protection to FM for Canada (cFMUS) • Auxiliary power 24 V 1 % • FM approval FM 3024169C • Load 500 • Degree of protection • Ambient temperature 23 °C • Warming-up time > 5 min Error in the analog output (digital/analog converter) < 0.025 % of span Error due to internal cold junction < 0.5 °C (0.9 °F) IS / Cl I, II, III / Div 1/ GP ABCDEFG T6, T5, T4 NI / Cl I / DIV 2 / GP ABCD T6, T5, T4 NIFW / Cl I, II, III / DIV 2 / GP ABCDFG T6, T5, T4 DIP / Cl II, III / Div 2 / GP FG T6, T5, T4 Cl I / ZN 0 / Ex ia IIC T6, T5, T4 Cl I / ZN 2 / Ex nA nL IIC T6, T5, T4 Other certificates EAC Ex(GOST), NEPSI, IEC, EXPOLABS Influence of ambient temperature • Analog measuring error 0.02 % of span/10°C (18 °F) • Digital measuring errors - with resistance thermometers 0.06 °C (0.11 °F)/10°C (18 °F) - with thermocouples 0.6 °C (1.1 °F)/10°C (18 °F) Auxiliary power effect < 0.001 % of span/V Effect of load impedance < 0.002 % of span/100 Long-term drift • In the first month < 0.02 % of span • After one year < 0.2 % of span • After 5 years < 0.3 % of span Factory setting: • Pt100 (IEC 751) with 3-wire circuit • Measuring range: 0 ... 100 °C (32 ... 212 °F) • Fault current: 22.8 mA • Sensor offset: 0 °C (0 °F) • Damping 0.0 s Conditions of use Ambient conditions Ambient temperature range -40 ... +85 °C (-40 ... +185 °F) Storage temperature range -40 ... +85 °C (-40 ... +185 °F) Relative humidity < 98 %, with condensation Electromagnetic compatibility acc. to EN 61326 and NE21 Siemens FI 01 · 2016 2/129 2 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART Digital measuring errors Thermocouples Resistance thermometer Input Input 2 Measuring range Min. measured span Digital accuracy °C/(°F) °C (°F) °C (°F) Pt25 -200 ... +850 (-328 ... +1562) 10 (18) 0.3 (0.54) Pt50 -200 ... +850 (-328 ... +1562) 10 (18) 0.15 (0.27) Pt100 ... Pt200 -200 ... +850 (-328 ... +1562) 10 (18) 0.1 (0.18) Pt500 -200 ... +850 (-328 ... +1562) 10 (18) 0.15 (0.27) Pt1000 -200 ... +350 (-328 ... +662) 10 (18) 0.15 (0.27) Pt25 -200 ... +649 (-328 ... +1200) 10 (18) 0.3 Pt50 -200 ... +649 (-328 ... +1200) 10 (18) Pt100 ... Pt200 -200 ... +649 (-328 ... +1200) 10 Pt500 -200 ... +649 (-328 ... +1200) Pt1000 Ni 25 ... Ni1000 Min. measured span Digital accuracy °C °C/(°F) °C (°F) Type B 100 ... 1820 (212 ... 3308) 100 (180) 21) (3.6)1) Type C (W5) 0 ... 2300 (32 ... 4172) 100 (180) 2 (3.6) Type D (W3) 0 ... 2300 (32 ... 4172) 100 (180) 12) (1.8)2) Type E -200 ... +1000 (-328 ... +1832) 50 (90) 1 (1.8) Type J -210 ... +1200 (-346 ... +2192) 50 (90) 1 (1.8) Type K -230 ... +1370 (-382 ... +2498) 50 (90) 1 (1.8) Type L -200 ... +900 (-328 ... +1652) 50 (90) 1 (1.8) (0.54) Type N -200 ... +1300 (-328 ... +2372) 50 (90) 1 (1.8) 0.15 (0.27) Type R -50 ... +1760 (-58 ... +3200) 100 (180) 2 (3.6) (18) 0.1 (0.18) Type S -50 ... +1760 (-58 ... +3200) 100 (180) 2 (3.6) 10 (18) 0.15 (0.27) Type T -200 ... +400 (-328 ... +752) 40 (72) 1 (1.8) -200 ... +350 (-328 ... +662) 10 (18) 0.15 (0.27) Type U -200 ... +600 (-328 ... +1112) 50 (90) 2 (3.6) -60 ... +250 (-76 ... +482) 10 (18) 0.1 (0.18) to IEC 60751 to JIS C1604-81 Resistance-based sensors Input Measuring range (°F) 1) The digital accuracy in the range 100 to 300 °C (212 to 572 °F) is 3 °C (5.4 °F). 2) The digital accuracy in the range 1750 to 2300 (3182 to 4172 °F) is 2 °C (3.6 °F). Measuring range Min. measured span Digital accuracy mV sensor Input Resistance 0 ... 390 5 0.05 Resistance 0 ... 2200 25 0.25 Measuring range Min. measured span Digital accuracy mV mV V mV sensor -10 ... +70 2 40 mV sensor -100 ... +1100 20 400 The digital accuracy is the accuracy after the analog/digital conversion including linearization and calculation of the measured value. An additional error is generated in the output current 4 to 20 mA as a result of the digital/analog conversion of 0.025 % of the set span (digital-analog error). The total error under reference conditions at the analog output is the sum from the digital error and the digital-analog error (poss. with the addition of cold junction errors in the case of thermocouple measurements). 2/130 Siemens FI 01 · 2016 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART ■ Selection and Ordering data Article No. Temperature transmitter SITRANS TH300 for installation in connection head, type B (DIN 43729), two-wire system 4 ... 20 mA, communication capable to HART, with galvanic isolation • Without explosion protection } 7NG3212-0NN00 • With explosion protection - to ATEX } 7NG3212-0AN00 - to FM (CFMUS) } 7NG3212-0BN00 Further designs Order code Add "-Z" to Article No. and specify Order code(s) with test protocol (5 measuring points) C11 Functional safety SIL2 C20 Functional safety SIL2/3 C23 Customer-specific programming Add "-Z" to Article No. and specify Order code(s) Accessories Article No. MiniDVD for temperature measuring instru- } ments With documentation in German, English, French, Spanish, Italian, Portuguese and SIPROM T parameterization software A5E00364512 2 HART modem } • With USB connection 7MF4997-1DB SIMATIC PDM operating software See Section 8 DIN rail adapters for head transmitters 7NG3092-8KA (Quantity delivered: 5 units) Connecting cable 4-wire, 150 mm, for sensor connections when using head transmitters in the high hinged cover (set with 5 units) 7NG3092-8KC } Available ex stock. We can offer shorter delivery times for configurations designated with the Quick Ship Symbol . For details see page 9/5 in the appendix. 1) For customer-specific programming for RTD and TC, the start value and the end value of the required measuring span must be specified here. 2) For this selection, Y01 or Y09 must also be selected. 3) For this selection, Y01 must also be selected. Y172) 4) Internal cold junction compensation is selected as the default for TC. Measuring point descriptor, max. 16 characters Y232) 5) Measuring point message, max. 32 characters Y242) For customer-specific programming, for example mV and ohm, the start value and the end value of the required measuring span and the unit must be entered here. Pt100 (IEC) 2-wire, RL = 0 U023) Pt100 (IEC) 3-wire U033) Pt100 (IEC) 4-wire U043) Thermocouple type B U203)4) Thermocouple type C (W5) U213)4) 7NG3212-0NN00-Z Y01+Y17+U03 Y01: -10 ... +100 °C Y17: TICA123 Thermocouple type D (W3) U223)4) Ordering example 2: Thermocouple type E U233)4) Thermocouple type J U243)4) Thermocouple type K U253)4) Thermocouple type L U263)4) Thermocouple type N U273)4) Thermocouple type R U283)4) Thermocouple type S U293)4) Thermocouple type T U303)4) Thermocouple type U U313)4) With TC: CJC external (Pt100, 3-wire) U41 With TC: CJC external with fixed value, specify in plain text Y50 Special differing customer-specific programming, specify in plain text Y095) Fail-safe value 3.6 mA (instead of 22,8 mA) U362) Cable extension Transmitter with installed cable extension 200 mm (7.87 inch), for Pt100 in four-wire system W01 Measuring range to be set Specify in plain text (max. 5 digits): Y01: ... to ... °C, °F Y011) Measuring point no. (TAG), max. 8 characters Supply units see Chapter "Supplementary Components". Ordering example 1: 7NG3212-0NN00-Z Y01+Y23+U25 Y01: -10 ... +100 °C Y23: TICA1234HEAT Factory setting: • Pt100 (IEC 751) with 3-wire circuit • Measuring range: 0 ... 100 °C (32 ... 212 °F) • Fault current: 22.8 mA • Sensor offset: 0 °C (0 °F) • Damping 0.0 s Siemens FI 01 · 2016 2/131 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART ■ Dimensional drawings Mounting on DIN rail Ø 44 (1.73) 2 33 (1.30) (1) s Te (2) 1 HART® t + t SIEMENS 1 2 – (2) 2 3 6 4 3-W 3 (3) (1) Te s + - 6 5 4 SITRANS TH300, mounting of transmitter on DIN rail 5 (4) 50.5 (1.99) 33 (1.30) 59.6 (2.35) 26.3 (1.04) 14 (0.55) M4 x 30 1(+) and 2(-) 3, 4, 5 and 6 Test (+), Test (-) Auxiliary power supply Uaux, output current IOut Pt100 sensor (for connections, see Sensor connection assignment) Measurement of the output current with a multimeter (1) (2) (3) (4) Test terminal Mounting screw M4x30 LED for operation indication Internal diameter of center hole 6.3 (0.25) SITRANS TH300, dimensions and pin assignment, dimensions in mm (inch) 2/132 Siemens FI 01 · 2016 DIN rail adapter, dimensions in mm (inch) © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH300 two-wire system, universal, HART ■ Schematics 6 5 4 3 3 5 4 3 5 4 2 6 + - 6 5 4 5 + TC - 6 + - 6 5 4 Cold junction compensation Internal/fixed value Two-wire system 1) 3 3 5 4 3-W 3-W 4 3 R Two-wire system 1) 3 6 5 4 RTD 3 6 + - 3-W 4 6 + - 6 + - 6 5 4 5 RTD 3 3 4 3-W 3 3-W 3 Thermocouple Resistance 3-W Resistance thermometer 6 + - 6 5 4 5 + TC - R RTD 6 + - 6 5 4 3 3 4 Cold junction compensation with external Pt100 in two-wire system 1) 3 3 6 + - 4 6 5 3-W 4 3-W 3 3 Three-wire system 3-W Three-wire system 6 + - 4 5 4 6 5 5 5 + TC - 4 3-W 3 6 + - 6 5 4 Cold junction compensation with external Pt100 in three-wire system Four-wire system 3 3 5 4 3-W Four-wire system 3 RTD R 6 + - 6 5 4 5 RTD2 3 3 4 3-W RTD 6 + - 4 5 + TC2 - R2 6 5 + TC1 - R1 RTD1 Generation of average value / difference 1) Generation of average value / difference with internal cold junction compensation Programmable line resistance for the purpose of correction. Voltage measurement 3 4 4 3-W 3 6 + - Current measurement 6 5 3 4 6 + - Connection of auxiliary power supply (Uaux) + 6 5 4 5 + 3 3-W 1) Generation of average value / difference 1) Te 5 - 1 R U st + Uaux HART® SIEMENS 1 + I Te s t – 2 2 3 6 5 6 SITRANS TH300, sensor connection assignment Siemens FI 01 · 2016 2/133