TAF12S Spare Parts List Overview

The TAF12S temperature transmitter is widely used in industrial temperature measurement applications, and its spare parts and selection configuration directly affect the stable operation of field equipment. This article compiles TAF12S-related spare part order numbers, modular temperature transmitter technical parameters, and selection codes for quick reference and selection by engineering technicians and procurement personnel.

TAF12S Temperature Transmitter Spare Parts and Selection

I. TAF12S Common Spare Parts List

The table below lists common spare parts for the TAF12S, including extension wires, compression fittings, seals, and device packages, with order numbers and specification descriptions for direct procurement ordering.

Order NumberSpecification Description
71389514Extension wire TC IEC 2x type S/R, L=180mm, 3 pieces
71389517Extension wire 2x type B, L=180mm, 3 pieces; Terminal head only on request
71244062Compression fitting
71421272Compression fitting G1" 15.5mm, 316Ti
71182602Seal: 5x O-ring 3.69x1.78; 5x O-ring 74.7x2.75
71044061Device package: 2x screws, 2x springs, 2x spring rings, 1x sealing CDI-connector

II. Modular Temperature Transmitter Selection

The TAF12S can be paired with various modular temperature transmitters, which differ in communication protocol, input type, isolation voltage, and safety certification. The technical features and selection codes of each model are described below.

1. TMT181 Modular Temperature Transmitter

TMT181 is a PC-programmable temperature transmitter suitable for RTD, TC, Ohm, and mV signal inputs, with a 2-wire 4-20mA output and electrical isolation.

  • Fault response: NAMUR NE 43
  • Mounting form: head form B, DIN EN50446
  • Certification: UL listed

Selection Code:

  • Approval: A = Non-hazardous area
  • Configuration Connection: 1 = Thermocouple TC
  • Configuration Sensor Type: B = Type B, +40…+1820°C, min. span 500K; R = Type R, -50…1768°C, min. span 500K; S = Type S, -50…1768°C, min. span 500K; Y = Special version, TSP-no. to be spec.
  • Configuration: B = Measuring range, see additional spec.
  • Additional Option: A = Standard - DIN mounting set

2. TMT84 Modular Temperature Transmitter

TMT84 features dual sensor inputs and advanced diagnostics, supports sensor monitoring, and provides electrical isolation up to 2kV, suitable for RTC, TC, Ohm, and mV signals.

  • Current consumption: 11 mA
  • Mounting form: head form B, DIN43729
  • Factory setting: CH1: Pt100, 3-wire, °C; CH2: inactive
  • Output signal: PROFIBUS PA

Selection Code:

  • Approval: A1 = Non-hazardous area
  • Output Signal: A = PROFIBUS PA
  • Electrical Connection: 1 = Spring terminals, housing form B, DIN EN 50446; 2 = Screw terminals, housing form B, DIN EN 50446
  • Field Housing: A = W/o, mounting set DIN standard
  • Configuration Input: D1 = Ch1: TC, Ch2: inactive; D2 = Ch1: TC, Ch2: TC

3. TMT85 Modular Temperature Transmitter

TMT85 supports the FOUNDATION Fieldbus protocol (ITK 5.0), features dual sensor inputs and advanced diagnostics, provides 2kV electrical isolation, and is suitable for RTC, TC, Ohm, and mV signals.

  • Current consumption: 11 mA
  • Mounting form: head form B, DIN43729
  • Certification: UL listed, CSA General Purpose
  • Output signal: FOUNDATION Fieldbus H1

Selection Code:

  • Approval: A1 = Non-hazardous area
  • Output Signal: A = FOUNDATION Fieldbus H1
  • Electrical Connection: 1 = Spring terminals; 2 = Screw terminals
  • Field Housing: A = W/o, mounting set DIN standard
  • Configuration Input: D1 = Ch1: TC, Ch2: inactive; D2 = Ch1: TC, Ch2: TC

4. TMT182 Modular Temperature Transmitter

TMT182 uses the HART protocol, is suitable for RTD, TC, Ohm, and mV signals, provides a 2-wire 4-20mA output, and features SIL2 certification and electrical isolation, with fault response in accordance with NAMUR NE 43.

  • Mounting form: head form B, DIN43729
  • Certification: UL listed, GL (German Lloyd) Marine

Selection Code:

  • Approval: A = Non-hazardous area
  • Configuration Connection: C = Thermocouple TC, non-SIL
  • Configuration Sensor Type: B/R/S/Y (same as TMT181)
  • Configuration: B = Measuring range, see additional spec.
  • Additional Option: A = Standard - DIN mounting set

5. TMT82 Modular Temperature Transmitter

TMT82 is a 2-wire temperature transmitter with dual universal sensor inputs, 2kV electrical isolation, suitable for RTD, TC, Ohm, and mV signals, and supports SIL 2/3 safety applications.

  • High reliability: drift detection and sensor backup
  • Communication/Output signal: HART; 1x 4-20 mA
  • Electrical connection: 1 = Spring terminals; 2 = Screw terminals
  • Field Housing: A = W/o, mounting set DIN standard

Selection Code:

  • Approval: AA = Non-hazardous area
  • Communication; Output Signal: A = HART; 1x 4-20 mA
  • Configuration Universal Input: D1 = Ch1: TC, Ch2: inactive; D2 = Ch1: TC, Ch2: TC
  • Sensor Type Input 1: TB = Type B, 40…1820°C, min. span 500K IEC 584; TR = Type R, -50…1768°C; TS = Type S, -50…1768°C
  • Sensor Type Input 2: AA = Inactive; TB/TR/TS = Type B/R/S, IEC 584
  • Input; Interconnection: A1 = PV = CH1; CH2 inactive; A2 = PV = CH1; SV = CH2
  • Additional Approval: LA = SIL conformity

III. Communication Interface and Commissioning Tools

Field commissioning and configuration require compatible communication interfaces and software tools. The common configurations are as follows.

FXA195 Communication Interface

FXA195 is a modem used to connect HART field devices to a computer via USB, and works with software tools to complete field device commissioning.

  • Can be connected to intrinsically safe signal circuits
  • SIL2, IEC61508
  • Approval: G = ATEX II (1)GD [EEx ia] IIC
  • Additional Option: 1 = Basic version

TXU10 Instrument Commissioning Package

TXU10 is suitable for PC-programmable and commissionable devices, including program settings and a PC connection cable with USB interface.

  • Version: AA = 4 pin plug + ReadWin2000

READWIN 2000 Commissioning Package

READWIN 2000 is operating and reading software used for device commissioning and parameter reading.

  • Memory Medium: 1 = CD
  • Software: AA = E+H

IV. Selection Notes

When selecting the TAF12S and its associated transmitters, the following key points should be noted to ensure matching with field conditions.

  1. Confirm the field communication protocol requirements, such as 4-20mA, HART, PROFIBUS PA, or FOUNDATION Fieldbus.
  2. Select the corresponding code according to the sensor type, such as TC, RTD, Ohm, or mV.
  3. For safety-critical applications, confirm SIL2/3 and corresponding certifications (such as the LA option).
  4. For hazardous area applications, verify explosion-proof certification ratings such as ATEX.
  5. When purchasing spare parts, verify the order number and specifications to avoid incompatibility due to version differences.