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Chapter 2: Installation
9
An input configured as “temperature” is designed to evaluate a
range of settings. The Model 1108 will read the temperature at
the sensor’s location and compare that value to programmed
high and low temperature limits. Temperature inputs must be
used with Phonetics Remote Temperature Sensor.
NOTE
Before wiring, it is advisable to disable the
inputs to prevent accidentally tripping an alarm.
Refer to Chapter 5, Section 5.2.
2.10 Installing the Sensor
After you have selected the sensor, loosen the screw of the alert
input and its corresponding ground. Two wire leads are used to
connect any monitoring sensor. Fasten one lead to the num-
bered screw and the other lead to GND. Tighten both screws. If
the input was not disabled, the Model 1108 may recite its
“Alert Condition Exists” message as you connect the sensor. If
it does, just press any key to stop. Re-enable the input after
wiring. Refer to Figures 2-6 and 2-7 for connecting a sensor to
an alert input.
23456781
GND GND GNDGND
Sensor wired to
Alert Input 5
Figure 2-6. Sensor Connected to an Alert Input