© Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH100 two-wire system (Pt100) ■ Overview ■ Application Used in conjunction with Pt100 resistance thermometers, the SITRANS TH100 transmitters are ideal for measuring temperatures in all industries. Due to its compact size it can be installed in the connection head type B (DIN 43729) or larger. 2 The output signal is a direct current from 4 to 20 mA that is proportional to the temperature. Parameterization is implemented over the PC using the parameterization software SIPROM T and the modem for SITRANS TH100/TH200. If you already have a "modem for SITRANS TK" (Article No. 7NG3190-6KB), you can continue using this to parameterize the SITRANS TH100. 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 The SITRANS TH100 dispenses with electrical isolation and universal sensor connection to provide a low-cost alternative for Pt100 measurements. Mode of operation Its extremely compact design makes the SITRANS TH100 ideal for the retrofitting of measuring points or for the use of analog transmitters. The measured signal supplied by a Pt100 resistance thermometer (2, 3 or 4-wire system) is amplified in the input stage. The voltage, which is proportional to the input variable, is then converted into digital signals by a multiplexer in an analog/digital converter. They are converted in the microcontroller in accordance with the sensor characteristics and further parameters (measuring range, damping, ambient temperature etc.). The transmitter is available as a non-Ex version as well as for use in potentially explosive atmospheres. The signal prepared in this way is converted in a digital/analog converter into a load-independent direct current of 4 to 20 mA. For the parameterization, the SIPROM T software is used in combination with the modem for SITRANS TH100/TH200. An EMC filter protects the input and output circuits against electromagnetic interferences. ■ Benefits • Two-wire transmitter • Assembly in connection head type B (DIN 43729) or larger, or on a standard DIN rail • Can be programmed, which means that the sensor connection, measuring range, etc. can also be programmed • Intrinsically-safe version for use in potentially explosive areas Input Pt100 EMC_1 IC MUX A/D Uref Ic 6 A/D 5 Pt100 4 Output D/A U/I EMC_1 MUX μC 3 EMC_2 Uaux Iout D/A Resistance thermometer Input level with protective components Constant current source Multiplexer Analog-digital converter Digital-analog converter Voltage transformers, current transformers, constant voltage and reference voltage source Output level with protective components Auxiliary power supply Output current Microcontroller μC Linearization functions and storage of all data Uref + U I EMC_2 Uaux, Iout 4 ... 20 mA - SITRANS TH100, function diagram 2/116 Siemens FI 01 · 2016 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH100 two-wire system (Pt100) ■ Technical specifications Construction Input Resistance thermometer Weight 50 g Measured variable Temperature Dimensions See dimensional drawing PT100 to IEC 60751 Material Molded plastic Characteristic curve Temperature-linear Cross-section of cables Max. 2.5 mm2 (AWG 13) Type of connection 2-, 3- or 4-wire circuit Degree of protection to IEC 60529 Resolution 14 bit Sensor type Measuring accuracy • Span <250 °C (450 °F) • Span >250 °C (450 °F) < 0.25 °C (0.45 °F) < 0.1 % of span Repeatability < 0.1 °C (0.18 °F) Measuring current approx. 0.4 mA Measuring cycle < 0.7 s Measuring range -200 ... +850 °C -328 ... +1562 °F) Measuring span 25 ... 1050 °C (77 ... 1922 °F) Unit °C or °F Offset programmable: -100 ... +100 °C (-180 ... +180 °F) Line resistance Max. 20 (total from feeder and return conductor) Noise rejection 50 and 60 Hz • Enclosure IP40 • Terminals IP00 Certificates and approvals Explosion protection ATEX EC type test certificate • "Intrinsic gas safety" type of protection • "Non-sparking" type of protection • "Intrinsic dust safety" type of protection Explosion protection FM for USA • FM approval • Degree of protection Output Output signal 4 ... 20 mA, two-wire Auxiliary power 8.5 ... 36 V DC (30 V for Ex ia and ib; 32 V for Ex nL/ic; 35 V for Ex nA) Max. load (Uaux - 8.5 V)/0.023 A Overrange 3.6 ... 23 mA, infinitely adjustable (default range: 3.84 ... 20.5 mA) Error signal (following sensor fault) (conforming to NE43) 3.6 ... 23 mA, infinitely adjustable (default range: 3.6 mA or 22.8 mA) Damping time 0 ... 30 s (default value: 0 s) Protection Against reversed polarity Resolution 12 bit Accuracy at 23 °C (73.4 °F) < 0.1 % of span Temperature effect < 0.1 %/10 °C (0.1 %/18 °F) Effect of auxiliary power < 0.01 % of span/V Effect of load impedance < 0.025 % of max. span/100 Long-term drift • < 0.025 % of the max. span in the first month • < 0.035 % of the max. span after one year • < 0.05 % of the max. span after 5 years Explosion protection FM for Canada (cFMUS) • FM approval • Degree of protection Other certificates Software requirements for SIPROM T PC operating system 2 PTB 05 ATEX 2049X II 1 G Ex ia IIC T6/T4 II (1) 2 G Ex ib [ia Ga] IIC T6/T4 Gb II (1) 3 G Ex ic [ia Ga] IIC T6/T4 Gc II 3 G Ex ic IIC T6/T4 Gc II 3 G Ex nA IIC T6/T4 Gc II 3 G Ex nA[ic] IIC T6/T4 Gc II 1 D Ex ia IIIC T115 °C Da FM 3024169 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 FM 3024169C 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 EAC Ex(GOST), NEPSI Windows ME, 2000, XP, Win 7 and Win 8; can also be used in connection with RS 232 modem under Windows 95, 98 and 98SE 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 According to EN 61326 and NAMUR NE21 Siemens FI 01 · 2016 2/117 © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH100 two-wire system (Pt100) ■ Selection and Ordering data ■ Dimensional drawings • Without explosion protection } 7NG3211-0NN00 • With explosion protection "Intrinsic safety" type of protection and for zone 2 - to ATEX - to FM (cFMUS) } } 7NG3211-0AN00 7NG3211-0BN00 20.8 (0.82) SITRANS TH100 temperature transmitters for Pt100 for installation in connection head, type B (DIN 43729), two-wire system, 4 ... 20 mA, programmable, without electrical isolation 44 (1.73) Order code Further designs Internal diameter Center hole 6.3 (0.25) 4..20mA Add "-Z" to Article No. and specify Order code(s) Test report (5 measuring points) C11 1 1 Customer-specific programming Add "-Z" to Article No. and specify Order code(s) Measuring range to be set Specify in plain text (max. 5 digits): Y01: ... to ... °C, °F Y011) Measuring point no. (TAG), max. 8 characters Y172) Measuring point descriptor, max. 16 characters Y232) Pt100 (IEC) 2-wire, RL = 0 U023) Pt100 (IEC) 3-wire U033) Pt100 (IEC) 4-wire U043) Special differing customer-specific programming, specify in plain text Y094) Fail-safe value 3.6 mA (instead of 22,8 mA) U362) Accessories Article No. 7NG3092-8KU MiniDVD for temperature measuring instru- } ments With documentation in German, English, French, Spanish, Italian, Portuguese and SIPROM T parameterization software A5E00364512 } 7NG3092-8KA 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. Mounting screw M4x25 2 3 3 2 – 6 4 6 5 4 } Modem for SITRANS TH100, TH200, TR200 and TF with TH200 incl. SIPROM T parameterization software With USB connection DIN rail adapters for head transmitters (Quantity delivered: 5 units) + SIEMENS 3-W 5 33 (1.3) 1(+) and 2(-) 3, 4, 5 and 6 Auxiliary power supply Uaux, output current IOut Pt100 sensor (for connection, see sensor connection assignment) SITRANS TH100, dimensions in mm (inch) Mounting on DIN rail SITRANS TH100, mounting of transmitter on DIN rail 14 (0.55) 50.5 (1.99) 33 (1.30) 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. 4) 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. 59.6 (2.35) 2 Article No. Supply units see Chapter "Supplementary Components". Ordering example 7NG3211-0NN00-Z Y01+Y23+U03 Y01: -10 ... +100 °C Y23: TICA1234HEAT Factory setting: • Pt100 (IEC 751) with 3-wire circuit • Measuring range: 0 … 100 °C (32 … 212 °C) • Error signal in the event of sensor breakage: 22.8 mA • Sensor offset: 0 C (0 °F) • Damping 0.0 s 2/118 Siemens FI 01 · 2016 DIN rail adaptor, dimensions in mm (inch) © Siemens AG 2016 Temperature Measurement Transmitters for mounting in sensor head SITRANS TH100 two-wire system (Pt100) ■ Schematics 6 5 4 3 3 5 6 4 3-W 6 4 3-W 3 3 4 Pt100 Two-wire system (parameterizable line resistance) Three-wire system Uaux + 6 4 3-W 3 - 6 5 4 2 5 Pt100 3 6 5 4..20mA 5 1 + SIEMENS 1 – Pt100 6 5 Four-wire system 2 2 6 Connection of auxiliary power supply (Uaux) SITRANS TH100, sensor connection assignment Siemens FI 01 · 2016 2/119