DURAG D-R 290, Руководство по эксплуатации

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8 | Maintenance
170 D-R 290
Se­
qu.
no.
Warning Cause;
(●) available actions by whom
[090] Temperature measurement of
the stepper motor is defective
The temperature sensor of the stepper motor is de­
fective
●
No effect on the operation of the device, but:
Protective function / automatic switch-off of the
stepper motors if the temperature is too high or
too low is no longer active
Service technician
[091] Warning of contamination The device contamination is higher than the config­
urable warning threshold
●
Clean the device plate, zero point reflector and
reflector unit
Specialised person­
nel
[092] Purge air flow 1 (measuring
head) too low
Purge air flow is below the warning threshold. Pos­
sible causes: Filter clogged, purge air hose split,
parameterisation of the purge air inlet defective.
●
Measurement function still operates, but a rapid
increase in contamination can be expected.
Check the purge air flow / restore the flow or re­
move the device from the flue stack.
Specialised person­
nel
[093] Purge air flow 2 (reflector) too
low
Purge air flow is below the warning threshold. Pos­
sible causes: Filter clogged, purge air hose split,
parameterisation of the purge air inlet defective.
●
Measurement function still operates, but a rapid
increase in contamination can be expected.
Check the purge air flow / restore the flow or re­
move the device from the flue stack.
Specialised person­
nel
[094] Purge air flow 1 (measuring
head) too high
Purge air flow above the warning threshold. If the
purge air flow is too high, depending on the flue
stack temperature and flue gas velocity there may
be an effect on the measured values.
●
Check the effect of the purge air on the meas­
ured values
Specialised person­
nel
[095] Purge air flow 2 (reflector) too
high
Purge air flow above the warning threshold. If the
purge air flow is too high, depending on the flue
stack temperature and flue gas velocity there may
be an effect on the measured values.
●
Check the effect of the purge air on the meas­
ured values
Specialised person­
nel
[096] LED heating defective No current flowing through the LED heating
●
Measurement function still operates, but at very
low temperatures (< -30°C/-22°F) a protective
shut-down of the LED may occur
Service technician
[097] Stepper motor heating defec­
tive
No current flowing through the stepper motor heat­
ing
●
Measurement function still operates, but at very
low temperatures (< -40°C/-40°F) a protective
shut-down of the stepper motor may occur
Service technician
[098] Disc heater defective No current flowing through the disc heater
●
Measurement function still operates, but if tem­
peratures fluctuate greatly and at high atmos­
pheric humidity, condensation may occur on the
device disc
Service technician
Table 8.3: List of warnings for the D‑R 290