6884209中文资料图尔克数据手册PDF规格书

The input module TI401EX 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).

The module features protection class Ex ib IIC

and can be mounted in zone 1 in combination

with excom. The ignition protection type of the

inputs is Ex ia IIC.

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 a

PT100 (2-wire) to the unused terminals X3 +

X4. 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