12
Relay 1 and 2 are used to set each alarm.
These correspond with the alarm output
connections located at the bottom of the
instrument.
If Relay 1 is selected for Main Alarm only,
Relay 2 can be selected for Pre Alarm.
The ratings for volt free contact is 1A at 24V
AC/DC.
2 matching plugs are provided with each
F8104.
The action of the contacts can be adjusted in
the software from active to passive by
selecting the Inverse tick box.
This is an optional, factory fitted feature
which allows a sounder to be fitted inside or
on the unit itself. By selecting the Sounder, an
audible tone will be emitted in the event of
any of the readings exceeding their minimum
and maximum value.
This is an optional, factory fitted feature
which allows a beacon to be fitted on the unit
itself.
If Power Fail is selected, then in the event of a
failure of the mains power supply, it will
activate the alarm.
To function correctly the F8104 requires a
minimum 2 barg supply pressure (10 barg
maximum). In the event the supply pressure
falls below 2 barg, the unit will activate its
alarm. For situations where the drop in
pressure may only be temporary a delay can
be added (in seconds) before the alarm is
activated.
1 Normally closed
2 Common
3 Not Used
4 Normally open
1 Sensor Out
1
-
2 Sensor V-
2 +
3 Sensor V+
3 Not Used
4 Not used
4 Not Used
