Chapter 5 - BIT Error Codes
TM00358 Rev. A
October 2007
L-3 WESCAM
92
All Rights Reserved
5.2.4 IR BIT Codes 6.x
5.9
Extender Failure
MAJOR
Extender servo loop of EOW sensor
not responding properly.
Sensitivity control will not work
properly under certain lighting
conditions. For example, if extender
is seized, the extender request will
not work.
Execute a BIT from the Level 2 EOW
Menu. If failure persists, replace
turret.
5.10
Filter Position Error
MINOR
Filter elements failed to reach a
specific position in a specific time.
Warning only. No action. Contact L-3
Wescam.
5.11
Filter Failure
MAJOR
Filter servo loop of EOW sensor not
responding properly.
Sensitivity control will not work
properly under certain lighting
conditions. For example, if filter is
stuck, the video will remain the
same when request to change filter
occurs.
Execute a BIT from the Level 2 EOW
Menu. If failure persists, replace
turret.
5.12
Camera Failure
MINOR
Failed to communicate with EOW
sensor.
Verify that EOW video is lost. If the
capability loss impacts mission,
replace turret.
5.13
Thermal Sensor
Failure
MINOR
Thermal protection sensor reading
out of range.
Check turret temperature through the
Level 2 Gimbal Menu. If gimbal
temperature is <75°C (<167°F) and
EOW camera is still functional,
continue to use system. If gimbal
temperature is >75°C (>167°F), turn
off turret and allow system to cool for
at least 1/2 an hour before operating.
If problem persists replace turret.
Table 5-5 Failure Descriptions for 6.x BIT Codes
BIT
#
Message
Category
Failure Description
Recommended Action
6.1
Thermal Shutdown
MAJOR
Compressor / expander
temperature is too hot to operate
safely.
The IR camera will shut itself down
and will restart when safe operating
temperature is acquired.
6.5
Focus Position Error
MINOR
Focus elements failed to reach
specific position in a specific time.
Verify that IR sensor focus can still
be adjusted. If focus control loss
impacts mission, replace turret.
Table 5-4 Failure Descriptions for 5.x BIT Codes (Continued)
BIT
#
Message
Category
Failure Description
Recommended Action