26
Faults, Cause and Remedy
202 The span calibration of the
DrägerSensor CatEx 125 PR
is not valid
Carry out the span calibration,
page 38 or page 40.
203 The measurement value of the
DrägerSensor CatEx 125 PR
is in the negative range
Carry out the fresh air calibra-
tion, page 36.
204 The DrägerSensor CatEx
125 PR is not inserted
Check the DrägerSensor CatEx
125 PR, page 46.
205 Error during the function test
with gas (bump test) of the
DrägerSensor CatEx 125 PR
Repeat the function test, cali-
brate or replace the
DrägerSensor CatEx 125 PR, if
necessary, page 46.
206 Function not possible:
O
2
deficiency
Use DrägerSensor CatEx
125 PR in atmospheres with
more than 10.0 % O
2
by vol..
207 Failed filter test. Repeat filter test with X-dock.
208 Failed rise time test. Repeat rise time test with X-dock.
301 The zero point calibration of
DrägerSensor XXS O
2
is not
valid
Carry out the fresh air calibra-
tion, page 36.
302 The span calibration of the
DrägerSensor XXS O
2
is not
valid
Carry out the span calibration.
page 40 or carry out the fresh air
calibration, page 36.
303 O
2
concentration drifted into
the negative range
Fresh air calibration required,
page 36.
304 The DrägerSensor XXS O
2
is
not inserted
Check the DrägerSensor XXS
O
2
, page 46.
305 Error during the function test
with gas (bump test) of the
DrägerSensor XXS O
2
Repeat the function test, cali-
brate or replace the DrägerSens-
or XXS O
2
if necessary, page 46.
307 Failed filter test. Repeat filter test with X-dock.
308 Failed rise time test. Repeat rise time test with X-dock.
401 The zero point calibration of
DrägerSensor XXS H
2
S is not
valid
Carry out the fresh air calibra-
tion, page 36.
402 The span calibration of the
DrägerSensor XXS H
2
S is not
valid
Carry out the span calibration,
page 40.
Special symbol »«
and displayed numerical
code:
Cause Remedy