CIRCUTOR CBS8 (Available until stocks) - Manual (Page 21)

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5.1.1.- Setting common parameters
The different options are now described in sequence:
1. Pre-alarm threshold.
2. Alarm contact status.
Pre-alarm threshold.
The minimum trip threshold of the channels set for earth leakage may be
changed between 50 and 80% in intervals of 10%
OFF – to disconnect the pre-alarm
MAIN – 100% trip treshold
Alarm relay output.
The type of relay is displayed. It may be selected from two possible values: