Product features

• Thermoelement type J, K, L

(TM 220/A, TM 240/A)

• For PT100 sensors

(TM 225/A)

• Internal and external cold junction compensation

• High measurement precision

• Sensor failure detection

• Electronic parameter chip

Short description

The TM 2xx/A series consists of temperature measurement modules that can be directly attached to CPU

modules and operated with all product lines of the KEBA control system by means of bus couplers.

TM 220/A, TM 240/A

Analog input modules TM 220/A and TM 240/A enable the direct connection of thermoelements (2-

conductor technique). The calibration and linearization of the temperature values takes place via a

microcontroller. A sensor failure, should it occur, is reported to the higher-level central module and can

be evaluated in the application.

Two operating modes are supported:

• Display of the actually measured temperature (standard mode)

• Display of the measured voltage in μV

Cold junction compensation can occur via internal temperature measurement at the terminals of the

module or optionally with the aid of external sensor TE 220/A (external terminal temperature

compensation).