- 5 -
2
L phase – current input (S1 terminal of the
transformer)
5
power supply 230 V AC (phase wire)
6
power supply 230 V AC (neutral wire)
8
L phase – current output (S2 terminal of the
transformer)
In order for the indicator to show current values, the cur-
rent transformers connected to the indicator must first be
programmed.
The DMA-1 CT indicator is adapted for use with the following cu-
rrent transformers with 5A secondary and primary current: 20,
25, 30, 40, 50, 70, 75, 80, 100, 120, 125, 150, 160, 200, 250, 300,
400, 500, 600, 700, 750, 800, 900, 1000 A.
1. Press and hold down the SET button located on the facade of
the indicator.
2. Release the button after a minimum of 5 seconds.
3. Use successive short presses of the SET button to set the de-
sired current ratio value.
4. Confirmation of the change takes place by pressing the SET
button for a minimum of 5 seconds.
The set value of the current ratio is indicated each time
on the display of the indicator when the power is swit-
ched on.
Configuration
Current transformer setting
Current ratio programming
Summary of Contents for DMA-1 CT TrueRMS
Page 2: ...2 1 LCD display 2 SET button Front description...
Page 4: ...4 Wiring diagram...
Page 8: ......
