Weidmuller DPATCX - Universal glavanically isolated signal converter - Handbuch (Seite 21)

1
•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
Signaltype Terminal
Input signal
Thermocouple Simulator (+) 2
Thermocouple Simulator (−) 3
Power supply
Neutral (−) 9
Live (+) 10
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.