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MeshGuard LEL IR & CO2 IR User's Guide
9. Troubleshooting
Failure Symptom
Cannot turn on
OVR (over range)
alarm
"－0" Alarm
Controller cannot
receive the MeshGuard
LEL IR's or MeshGuard
CO2 IR's signal
No Antenna Icon
Cause
Battery charge too low
Over 100% LEL (LEL
sensor only) or over
the range of the CO
2
sensor
Condensation inside
Sensor zero drift
Too much distance
between the
MeshGuard LEL IR or
Meshguard CO2 IR
and the controller.
There is an obstruction
between the
instrument and the
controller.
Controller does not
receive completed
data packet
Battery is low
MeshGuard LEL/CO2
IR and controller have
different Pan ID
numbers
There is no reader or
controller nearby.
The controller or
reader's network has
changed.
The instrument is out
of its RF range.
Solution
Replace battery
Check RAE Systems
web site for inform-
ation on batteries
Move monitor to a
clean environment
and allow sensor to
clear
Move monitor to a dry
environment, remove
sensor filter, and
allow sensor to dry
out
Perform zero
calibration
The distance should be
300 m, line of sight.
Deploy a router
between the remote
monitor and the
controller.
Relocate the instru-
ment or deploy RTR
mode in instrument or
MeshGuard
Router(s).
Press [Y/+] on the
detector to force it to
send data packets
Replace battery
Set both units to have
the same Pan ID
number
Move the instrument
closer to a working
controller or reader.
Perform the network
searching function in
Programming Mode.
Move the instrument
closer to a working
56
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