BeaconMedaes TotalAlert 2 Installation, Operation And Maintenance Instructions page 127

Troubleshooting Guide (Cont.)
Symptom
22)Low alarm with - - F F I I - - display on
digital display module.
23)High alarm with - - F F 3 3 - - display
on digital display module.
Possible Cause
No pressure or vacuum signal
to digital display module as a
result of:
a. Sensor wiring disconnected.
b. Incorrect sensor type (analog)
connected.
c. Faulty digital display module.
d. Faulty sensor module.
Pressure or vacuum signal to
digital display module out of
measurement range (too high)
as a result of:
a. Shorted sensor wiring.
b. Faulty digital display module.
c. Faulty sensor module.
d. Digital sensor connected to
digital display module with gas
ID set to N N O O N N E E .
Corrective Action
a. Correct sensor wiring. If sensor
is mounted remotely, verify field
wiring continuity and polarity
from sensor to digital display
module connector pins 5 (+)
and 6 (-).
b. Replace sensor with correct
type (digital).
c. If alarm panel contains another
working digital display module,
remove field wiring connector
from suspect module and
connect to working (test)
module. Temporarily program
gas id, and units to match the
sensor module. If test module
provides any reading other than
- - F F I I - - , replace faulty digital
display module.
d. If test module in step c above
also gives - - F F I I - - , replace faulty
sensor module.
a. Correct sensor wiring.
b. If alarm panel contains another
working digital display module,
remove field wiring connector
from suspect module and
connect to working (test)
module. Temporarily program
gas id, and units to match the
sensor module. If test module
provides any reading other than
- - F F 3 3 - - , replace faulty digital
display module.
c. If test module in step b above
also gives - - F F 3 3 - - , replace faulty
sensor module.
d. Program gas ID in digital display
module.
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