7
Alarm
The alarm feature detects faults in the operation of the ionising system, e.g. problems
caused by lack of product cleanliness. When a fault has been detected the alarm LED
will illuminate and the high voltage to the emitters will be automatically switched off. If
a single occurrence of a fault occurs, the controller will switch off the HV for 1 second
and then automatically reset. However, if the unit detects 5 faults in 5 seconds the HV
will be permanently switched off. The fault must be removed (e.g. by cleaning of the
ionising product) and the controller reset by switching the mains supply to it OFF and
ON.
An 8 way DIN socket is provided to mirror the alarm function to a central control panel
- see specification for connection detail.
LED Displays
The 977v3 has four indicator lights
1. Power light (Red)
-
Illuminated when mains supply
is provided to the unit.
2. Alarm light (Yellow)
-
Illuminated when unit has detected a fault
and
has
shut
down.
3. Positive balance light (Red)
-
indicates positive voltage and pulse rate
4. Negative balance light ( green) -
indicates negative voltage and pulse rate
