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IM 50.560CA UA (B/4-03)
41
DEPOLOX
®
3
PLUS
RESIDUAL ANALYZER
Figure 3.4 - High / Low Alarms
3.1.6 Alarm Relays
DEPOLOX 3
plus
features the following alarm relays:
•
Two relays allocated to chlorine alarms.
•
Two relays allocated to pH or fluoride alarms (optional).
Definitions for switching the relays:
high DIS:
relay reacts to the set value
low DIS:
relay reacts to the set value
high/low:
combination of high and low value
general fault:
relay is activated as long as there is an alarm
message
DI:
relay is activated as long as there is a signal on
the digital input
dosing contact:
relay is energized as long as the actual value is
below the setpoint (for disinfectant only)
off:
relay is de-energized
Selections:
normally open (N.O.):
relay is energized in case of an alarm.
fail safe (N.C.):
relay is de-energized in case of an alarm
non latching:
relay is de-energized as soon as the alarm
condition has ceased
latching:
relay stays energized after the alarm until
the star key “
✳
” is pressed to acknowledge
the alarm