Sensaphone 800 - Manual (Page 31)

Chapter 2: Installation
29
Sensor wired to
Alert Input 3
Sensor wired to
Alert Input V4
1 C
ZONES
2 C 3 C 4 C 5 C 6 C 7 C 8 C
Figure 2-7 . Two Sensors Wired to Adjacent Zones
NOTE
Do not use sensors, switches, or relays that supply
any voltage or current to the Model 800. Be aware
of proximity to other electrical wires or components
when placing wires that lead from the sensors to the
unit. Avoid running the wires near electrical devices
that use high voltage or current, such as motors,
heavy machinery, etc. This voltage may be induc-
tively coupled into the sensor wiring and could result
in damage to the the Model 800’s circuitry. Try to
place wires at least 6 inches from other electrical wir-
ing or devices.
2 .11 Multiple Sensors
The Model 800 may have more than one sensor connected to the
same alert zone, as long as the normal condition for each sensor
on the same alert zone is identical (either all N.O. or all N.C.).
However, only one remote temperature sensor can be used on
each zone.
When wiring several normally closed sensors on one zone, they
must be connected in series. Connect one lead from the first
sensor to the numbered screw of the alert zone. Next, take the
other lead from the first sensor and connect it to one lead from
the next sensor. Continue connecting sensors end-to-end until you
have connected all of your sensors. Take the second lead from the
last sensor and connect it to the common screw on the Model 800.