Advantech ADAM-4118 Robust 8-ch Thermocouple Input Module with Modbus


  • 8 differential & independent thermocouple configuration channels
  • Wide operating temperature range
  • 1 kV surge protection on power inputs, 3 kV EFT, and 8 kV ESD protection
  • Wide power input range: +10~+48 VDC
  • Supports filter auto-tuning or filter out 50 Hz / 60 Hz
  • Online firmware update


Advantech's ADAM-4118 is a thermocouple input module with 8 differential & independent thermocouple configuration channels. The module has a wide power input and operating temperature and online firmware updating.


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  • Power Requirement: 10~48 VDC
  • Analog Input
  • Channels: 8 differential
  • Voltage Range: 15 mV ±50 mV ±100 mV ±500 mV ±1 V ±2.5 V
  • Current Input: ±20 mA 4~20 mA
  • Direct Sensor Input: J, K, T, E, R, S, B Thermocouple
  • Burn-out Detection: Yes (4~20 mA & all T/C)
  • Channel Independent Configuration: Yes
  • Sampling Rates: 10/100 samples/second (total)
  • Resolution: 16-bit
  • Input Impedance: Voltage: 20 MOhm Current: 120 Ohm
  • Span Drift: ±25 ppm/°C
  • Zero Drift: ±6 µV/°C
  • CMR @ 50/60 Hz: 92 dB
  • NMR @ 50/60 Hz: 60 dB
  • High Common Mode: 200 VDC
  • Watchdog Timer: System (1.6 second) & Communication
  • Connector: 2 x plug-in terminal block (#14~22 AWG)
  • Temperature (Operating): -40~85°C (40~185 °F)
  • Humidity: 5~95 %RH
  • Temperature (Storage): -40~85°C (40~185 °F)
  • Interface: RS-485
  • Isolation Protection: 3000 VDC
  • Communication Protocol: ASCII command & Modbus/RTU
  • Communication Speed: Serial: From 1,200 to 115.2 k
  • Data Flow Control: Yes

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Advantech: Warranty and Service Information

As an official EMEA partner of Advantech, we provide a 2 year warranty on all Advantech products supplied to customers in the EMEA. This includes any products which have been customised by Assured Systems. Optional warranty extensions are also available upon request.

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