RTD to ModBus Transmitter  TMT 2140


TRANCEL TML 2140 has been designed to provide a highly reliable isolated connection between (up to four) RTD and PLC through RS-485. Linearizing the measurement signal with extreme accuracy makes it ideal for the most exacting temperature measuring applications. Benefiting from lead resistance compensation and the highest interference resistance, problem-free application is guaranteed with long transfer distances in the harshest environments.


  • High Accuracy (±0.2oC)
  • Lead Resistance Compensation
  • Input Surge-voltage Protection
  • Sensors Wiring Burned-out Detection
  • RFI/EMI Screened
  • High Speed Serial Interface
  • Isolated Power and Serial Port
  • Transient Suppression on RS-485 Line
  • Compact Case with DIN-rail Mounting



Manual TMT 2140 [FA]
Supply 21.6 – 26.4 VDC, < 1W
Isolated Voltage 1.5 Kv RMS, <1min
A/D Converter 16-bit Sigma-Delta
Resolution 0.1o C
RTD Type PT100,  2,3-wire,  (a = 0.00385)
Range -200 oC    –   +800 oC
Serial Port RS-485 2-wire, Isolated, ModBus (RTU)
Baud Rates 9600-19200-38400-115200 bps– Dipswitch Configurable
Address Range 1 … 32 – Dipswitch Configurable
Operation Temperature -20o C  to  +60o C
Case 115 x 100 x 23 mm, IP20

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