GE Druck ADTS 405 R/F Mk2 Instruction Manual page 50

Chapter 3. OPERATION
The following table lists the warning messages with the possible cause and action to be taken.
No. Message
2 INVALID USER
INPUT
3 OPERATE CAL
ENABLE ON
STATUS PANEL
4 ONLY VALID IN
CONTROL MODE
210 Ps SOFT START
TIMEOUT
212 Ps PRESSURE FAIL
213 Ps VACUUM FAIL
220 Pt SOFT START
TIMEOUT
222 Pt PRESSURE FAIL
223 Pt VACUUM FAIL
301 LEAK RATE TOO
HIGH REGAINING
CONTROL
302 OUTSIDE LIMITS
REGAINING
CONTROL
303 ZERO OFFSET TOO
LARGE
304 INITIALIZING
SYSTEM
305 OUTSIDE LIMIT GO
TO GROUND
306 SWITCH PUMPS ON Cannot select control mode with pumps off.
307 COMMUNICATION
RING FAULT-
PACKET IS
CORRUPT
308 UPDATING SYSTEM Software upgrade.
309 CANNOT CONTROL Failed pump test.
310 PUMP TEST FAILED Pump not achieving limits.
32 | ADTS 405 Mk2 Instruction Manual-English
Table 3-2: Warning Messages
Probable Cause
The numeric value entered was outside the
allowed range
Calibration started before removing calibration
enable plate on the front panel
Selection not allowed in Leak measure mode
The Ps controller has failed to go into control
mode
The Ps controller has detected loss of supply
pressure and automatically switched all channels
to measure mode. This can occur at very high
rates of pressure change in large volume systems
if the pumps cannot produce enough pressure.
The Ps controller has detected loss of supply
vacuum and automatically switched all channels
to measure mode. This can occur at very high
rates of pressure change in large volume systems
if the pumps cannot produce enough vacuum.
The Pt controller has failed to go into control
mode.
The Pt controller has detected loss of supply
pressure and automatically switched all channels
to measure mode. This can occur at very high
rates of pressure change in large volume systems
if the pumps cannot produce enough pressure.
The Pt controller has detected loss of supply
vacuum and automatically switched all channels
to measure mode. This can occur at very high
rates of pressure change in large volume systems
if the pumps cannot produce enough vacuum.
Control mode automatically regained for aircraft
safety as leak rates too high.
Control mode automatically regained for aircraft
safety as the measures values have drifted
outside the operating limits due to leaks.
The zero offset measured during auto-zero was
outside.
This only occurs on main system software
upgrade.
Measured pressure is outside new limits selected
or power-up limits.
Internal error.
Action
Re-enter value within allowed range.
Refer to main fault finding chart in the
service manual.
Select controller on.
Select CONTROL again. If fails again,
refer to main fault finding chart in the
service manual.
Restore pressure supply BEFORE going
to control mode again. Refer to main
fault finding chart in the service manual.
Restore vacuum supply BEFORE going to
control mode again. Refer to main fault
finding chart in the service manual
Select CONTROL again. If fails again,
refer to main fault finding chart in the
service manual.
Restore pressure supply BEFORE going
to control mode again. Refer to main
fault finding chart in the service manual.
Restore vacuum supply BEFORE going to
control mode again.
Correct leak and retest.
Correct leak and retest. If leak Ps,
ensure that normal Qc pressure is
applied (e.g. 200 kts to avoid negative
airspeed).
Return to maintenance depot for
calibration.
If message occurs during normal
operation, return to maintenance depot.
Control pressure to within limits.
Switch pumps on.
If the fault can be repeated, return to
maintenance depot.
Wait 1 minute.
Check system limits.
Set lower limits.
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