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Maintenance
Number
Cause
Err 124
Beam block error
Err 131
PIR lock cannot be
set
Err 198
Memory error
E198
Bootloader CRC
error
Err 199
Factory calibration
required
9.3
Warnings
Warning
Cause
number
Info 300
Instrument set-
tings and sensor
settings do not
match
Info 301
Sensor is warming
up
20
Remedy
Clean optical surfaces. If
necessary, make sure that
the hydrophobic filter, pro-
cess cuvette, and process
adapter are installed cor-
rectly. See the sections
"Checking the measure-
ment cuvette of the gas
transmitter and cleaning if
necessary" and "Errors,
causes, and remedies" of
the PIR 7x00 technical
manual for more informa-
tion.
A1 and A2 settings and tar-
get values are not identical.
Correct relay settings
before PIR LOCK is
enabled.
Have the instrument
checked by DrägerService.
Have the instrument
checked by DrägerService.
Have the instrument
checked by DrägerService.
Remedy
Press [DOWN] to select
instrument settings. Press
[UP] to select sensor set-
tings. Once a selection has
been made, continuous
dashes appear on the dis-
play. Once data transmis-
sion is complete, "CHk
CONF CAL" appears on
the display. Press [OK].
Continuous dashes appear
on the display and the
instrument then returns to
measuring mode.
Wait until the warm-up
phase has ended.
Warning
Cause
number
Info 302
Beam block warn-
ing
Info 303
Overwrite factory
settings warning
Info 305
Gas category, gas
type, gas unit or
FSD has changed.
Info 306
Sensor tempera-
ture of 75 °C
exceeded
10
Maintenance
– The maintenance intervals must be established for each
individual installation. Depending on safety considerations
and application specific conditions the instrument is used
in, these might need to be shortened.
Every 6 months:
– Inspection by trained service personnel.
– Check signal transmission to the controller (see "Testing
the analog interface", page 25).
– Check LEDs as well as the triggering of the alarm device
(see "Testing alarms/relays", page 24).
Regularly:
– Perform calibrations, see 8 Calibration
O
sensor test
2
Only nitrogen (N
) may be used to test oxygen sensors (O
2
for the correct zero-point. A test does not adjust the sensor. If
the zero-point is not correct, contact Dräger or replace the
sensor.
Instructions for use
Remedy
Clean optical surfaces. If
necessary, make sure that
the hydrophobic filter, pro-
cess cuvette, and process
adapter are installed cor-
rectly. See the sections
"Checking the measure-
ment cuvette of the gas
transmitter and cleaning if
necessary" and "Errors,
causes, and remedies" of
the PIR 7x00 technical
manual for more informa-
tion.
Press [OK]. The factory
settings are loaded from
the instrument to the sen-
sor. CHk CONF CAL is dis-
played. Press [OK].
Continuous dashes appear
on the display and the
instrument then returns to
measuring mode.
Press [OK] to acknowl-
edge; check alarm thresh-
olds, full scale deflection,
and adjustment.
Reduce temperature, cover
instrument with sun shield.
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Dräger Polytron 5000 Series
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