Ampac Orbis, Product Manual, Page: 16 / 22

14
MAN1509-4
ORBIS AUSTRALIAN PRODUCT GUIDE
8.4 Fitting Orbis detector heads
When the bases have been installed and the system wiring tested, the detector circuits can be
populated.
Two methods are suggested:
1. Apply power and fit the detectors one by one, starting at the base nearest the
panel and working towards the end of the circuit. As each detector is powered up
it will enter ‘StartUp’ and flash red (see next page for a full description of this
feature). If the LED does not flash, check the wiring polarity on the base and
ensure there is power across IN+ and COM
–. If the LED is flashing yellow the
detector is not operating correctly and may require maintenance or replacing (see
DirtAlert and SensAlert® below and the section ‘Maintenance and servicing’.
2. Fit all detectors to the circuit, apply power and check detectors by observing the
LED status of each device. The Start Up feature lasts for 4 minutes so it may be
necessary to reset or de-power the circuit to allow all detectors to be observed.
The LED status is the same as method 1.
8.5 Relay Base
The relay base incorporates a single-pole voltage-free changeover contact for switching ancillary
equipment.
The maximum contact rating is 30VDC @ 1A.
When the detector changes to the alarm state the relay is energised causing the contact to change
state. The contact will remain in this condition until the detector is reset.
Continuity link
( if fitted ) in the link
enabled position.
Fitting the detector
forces it back towards
the OUT+ screw
LE
D
C O
M
I N
In from
FACP
Out to next
detector
+
+
-
-
Screen
( Functional
Earth )
O
U
T
4
O R
1
2 3
COM
N C
N O
Relay Contolled
Device
Locking cutout
Normally Closed (NC)
Normally Open (NO)
Common (COMM)
Relay Contacts Abbreviations
Figure 6: TimeSaver Relay Base Wiring Connections