The input module TI40-N is used for the connection of 2, 3 and 4-wire temperature probes

of the types Pt100, PT200, Pt500, Pt1000,

Ni100 and CU100, as well as for the connection of thermocouples of the types B, E, D, J,

K, L, N, R, S, T and U. The module can also

be used for the measurement of low voltages

(-75…+75 mV, -1.2…+1.2 V) and resistance

measurements (0…30 ò, 0…300 ò, 0…3

kò).

Line compensation of 2-wire temperature resistors is done by means of parametrized resistance values. These values have to be determined first through measurements.

When using thermocouples, external cold

junction compensation can be carried out separately for each channel by connecting resistors such as the Pt100 to the two unused

terminals. Internal compensation instead is

parametrized for all channels via an integrated

Pt100 resistor.

The resolution is 16 bit, i.e. the analog value

is represented as a number between 0 and

65535. The temperature is indicated in Kelvin.

For conversion to °C, please observe an offset

of 273.2.

Parameters such as line monitoring, substitute

values etc. can be adjusted for each channel separately and are initialized solely by the

master.

■ Input module for the connection of temperature probes

■ Complete galvanic isolation