Weidmuller DPAMAS - Universal glavanically isolated signal co Manuel d'utilisateur télécharger pdf (Page 21)

• Calibration and Setup

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.

quipment requirements

• Two milliamp current sources, e.g., Portacal 1000.

• F

lat bladed screwdriver (blade width less than 2.54 mm / 0.1 inch)

Setpoint (SET Control) 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.

2. S

et source B to 4 mA.

3. Adjust source A to give the required current difference.

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

5. S

lowly turn the SET control clockwise until the LED lights up.

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Weidmuller DPAMAS - Universal glavanically isolated signal co Manuel d'utilisateur Page 21