Dräger X-AM 5000 Technical Manual page 25

Special symbol »
and displayed numerical
code:
253
254
255
256
257
271
351
352
353
354
355
356
357
451
452
453
454
455
« Cause
Ex concentration has drifted
into the negative range
The temperature is too high
The temperature is too low
The calibration interval for
DrägerSensor CatEx 125 PR
has elapsed
Alarm setpoint A2 setting is
greater than 60 %LEL
The calibration interval for
thermal conduction for Drä-
gerSensor CatEx 125 PR has
elapsed
DrägerSensor XXS EC1 in
the warm-up phase
DrägerSensor XXS EC1 in
the warm-up phase
EC1 concentration has drifted
into the negative range
The temperature is too high
The temperature is too low
The calibration interval for
DrägerSensor XXS EC1 has
elapsed
Alarm setpoint A2 setting is
greater than 60 %LEL
DrägerSensor XXS EC2 in
the warm-up phase
DrägerSensor XXS EC2 in
the warm-up phase
EC2 concentration has drifted
into the negative range
The temperature is too high
The temperature is too low
Faults, Cause and Remedy
Remedy
Carry out fresh air calibration,
page 38.
Operate the device within the
allowed temperature range.
Operate the device within the
allowed temperature range.
Carry out span calibration for
DrägerSensor CatEx 125 PR,
page 42.
Set alarm setpoint to less than
60 % LEL.
Carry out span calibration for
DrägerSensor CatEx 125 PR,
page 42.
Wait until warm-up time is
complete.
Wait until warm-up time is
complete.
Carry out fresh air calibration,
page 38.
Operate the device within the
allowed temperature range.
Operate the device within the
allowed temperature range.
Carry out span calibration for
DrägerSensor XXS EC1,
page 42.
Set alarm setpoint to less than
60 %LEL.
Wait until warm-up time is
complete.
Wait until warm-up time is
complete.
Carry out fresh air calibration,
page 38.
Operate the device within the
allowed temperature range.
Operate the device within the
allowed temperature range.
25