Weidmuller DPA Bedienungsanleitung Seite 21

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•CalibrationandSetup

General

The SET (setpoint) and DB (deadband) adjustments control the

setpoint and hysteresis for each alarm channel. Internal jumpers

control the alarm type and relay coil energisation.

The DPA/TCX also has an adjustment (CJC Tracking) to compensate

for component variations in the first stage input and CJC circuits.

Although the CJC Tracking is unlikely to need adjustment, the

procedure is given below.

Equipmentrequirements

• A Thermocouple Simulator

• Flat bladed screwdriver (blade width less than .4 mm / 0.1 inch)

Terminalconnectionsforcalibration

Input signal

Power supply

Setpoint(SETControl)adjustment

The SET controls for each channel are on the front panel of the

transmitter. For both high and low type alarms you turn the control

clockwise to trip the alarm and anticlockwise to reset it. The procedure

for adjustment is as follows:

1. Connect up the instrument according to the table above.

. Set the input source to the trip point.

. Turn the SET control anti-clockwise until the LED extinguishes.

4. Slowly turn the SET control clockwise until the LED lights up.

Signaltype

Thermocouple Simulator (+)

Thermocouple Simulator (−)

Neutral (−)

Live (+)

Terminal

Tcx