UTC Fire & Security Americas Corporation Inc 779A-PIR User Manual

3

Programming

6.

When testing is completed the PIR can be securely 
attached to its mounting plate by screwing the smallest 
enclosed screw into the hole at the top of the mounting 
plate.

For pet applications, the PIR must be set to standard sensi-
tivity.

Walk testing should be done to determine the sensor’s 
actual coverage area.  The edge of the coverage pattern is 
determined by the first flash of the LED.  This may change 
slightly depending upon the sensitivity setting.  Walk test 
the unit from both directions to determine the pattern 
boundaries.

1.

Remove the sensor body from the mounted mounting 
plate, activate the tamper switch, and then remount the 
body to activate the 60 second walk test mode.

2.

Walk across the coverage pattern to determine the cov-
erage area, indicated by LED activation.  Each activa-
tion extends the walk test mode for an additional 60 
seconds.

After 60 seconds without motion the walk test mode and the 
LED will no longer activate when motion is detected.

Excessive use of the walk test mode may reduce 
battery life.  Use only for initial setup and maintenance 
testing.

When the walk test mode has ended, an alarm can be 
transmitted only after 3 minutes have passed since 
the previous alarm.  This 3 minute lockout time 
reduces unnecessary RF transmissions in high traffic 
areas thereby extending battery life.

Turn on all heating or air conditioning sources which would 
normally be active during the protection period.  Stand 
away from the sensor and outside the coverage pattern and 
watch for alarms.

Refer to the panel installation manual for information on 
programming the sensor into the panel.  

1.

Remove the back cover to activate the tamper switch.

2.

Exit the panel’s programming mode.

3.

Return the PIR to its mounting plate.

At least once a year, the range and coverage should be veri-
fied for proper operation. The end user should be instructed 
to put the sensor in walk test mode and walk through the far 
end of the coverage pattern to verify proper detection.

When battery replacement is necessary, observe proper 
polarity (as shown in the battery compartment) when 
installing the new battery, or the sensor may be damaged. 
Be sure to note that as you look at the battery compartment, 
on the left side the positive side is down and on the right 
side the positive end is up. When the battery is replaced, 
wait at least 3 minutes after installing the battery before 
activating the walk test mode. 

Final testing should be done to verify radio signal integrity 
and confirm control panel programming and response. The 
actual transmitter range can be determined by performing a 
sensor test as follows:

1.

After the sensor has been mounted, remove it from its 
mounting plate and activate the tamper switch to start 
the walk test mode.

2.

Replace the sensor in its mounting plate

3.

Place the control panel in test mode. Move across the 
detection pattern until the sensor’s LED turns on. 
STOP your motion.

4.

Listen for the appropriate system response. If the sys-
tem does not respond, proceed to Troubleshooting sec-
tion.

Use the following guidelines if the system does not respond 
correctly when the sensor is activated.

❑

Check programming and re-program sensor into panel 
if necessary.

❑

Move the sensor to another location and test for correct 
response.

1.

Test the sensor a few inches from the original position.

2.

Increase the distance from the original position and 
retest until an acceptable location is found.

3.

Mount the sensor in the new location.

4.

If no location is acceptable, test the sensor as follows:

❑ Test a known good sensor at the same location.