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The input module TI401-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 for 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 an

RTD (2-wire) to the two unused terminals. Instead, internal compensation is parameterized

for all channels via an integrated temperature

resistor.

The temperature is indicated in Kelvin. For

conversion to °C, please observe an offset of

273.2.

Setting the parameters, such as line monitoring, substitute value strategy and attenuation,

can be carried out channel-by-channel and is

initiated exclusively by the master.

■ Input module for connecting temperature

sensors, thermocouples, low voltages and

resistor elements

■ Complete galvanic isolation