3 Initialisation

3.4.CONNECTION TO THE MEASURE NETWORK

3.4.1. Measure of voltage

Isolated input module: the measure of voltage is made between the red and black terminals of the inputs through cables with security male single-pin plugs (according CEI 1010).

Non-isolated differential input module: the measure of voltage is made between the "+" and "-" terminals of the inputs through cables on the screw-type terminal block.

3.4.2. Measure of temperature with a thermocouple

Isolated input module: you have to measure the voltage generated by the thermocouple effect between the red and black terminals of the considered input. To ensure a right measurement, connect directly both ends of the thermocouple cable on clamping-type single-pin plugs. Connect the two single-pin plugs on the selected input in respect with the polarity.

Do not use male single-pin plugs for welding: the thermocouple effect would be altered by the weld

Non-isolated differential input module: you have to measure the voltage generated by the thermocouple effect between the "+" and "-" terminals through cables on the screw-type terminal block.

To ensure a right measurement connect directly both ends of the thermocouple cable on the selected input in respect with the polarity.

3.4.3. Measure of temperature with a PT100

Available only with a non-isolated differential input module.

The PT100 probe must be connected to the terminals I+ and I- (1mA current generator output).

The voltage produced by the PT100 must be measured with the teminals + and - with one of the following scheme : 2 wires, 3 wires or 4 wires. The 4 wires mounting make the measurement independent of the resistor value of the line.

2 wires wiring :

PT100

3 wires wiring :

PT100

Page 3.5

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Image 25
Escort 3008B, 3016B Measure of voltage, Measure of temperature with a thermocouple, Measure of temperature with a PT100