mru AirFair OPTIMA 7 NDIR, Руководство пользователя

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MRU GmbH USER MANUAL OPTIMA 7 - NDIR
55
16.5 Errors
16.5.1 Error diagnosis regarding the measuring device
1. Effect 2. Error indication 3. Cause 4. Solution
Device cannot be
switched off by press-
ing the OFF key. LED behind the con-
densate separator is
on and the LCD dis-
play is dark Device does not react on
any key. Press ESC and ON
simultaneously!
EMERGENCY OFF
After this, the date and
time have to set new.
Inside of the device is
too cold, device not
ready for operation. Display indication:
“Device too cold” or
audible sound every 5
sec..
e.g. device was stored in a
cold place during winter. Put the device to a
warm room and wait
Measuring values are
not correct Sensors already get in
tough with the gas during
calibration. Vent device with fresh
air and re-start!
No measurement pos-
sible Device cannot be switched
on or does not react after
being switched on.
Battery discharge
Connect the device to
the line power in order
to charge the battery.
Measurement without
exact temperature val-
ues. Temperature indicati-
on:
- - - , - °C
Thermo element defective,
balancing network inter-
rupted or not connected. Call our after-sales ser-
vice.
Remove probe from the
gas duct and conden-
sate from the probe
tube.
Wrong measuring val-
ues Measuring range ex-
ceeded:
Value O
2
too high
Values CO and CO
2
to
low
Connection probe – device
not correct. Leakage at
probe / tube / condensate
separator, pump does not
suck correctly Effect tightness test!
By visual control of
probes, tubes conden-
sate separator, leaking
parts could be found.
Wrong measuring va-
lues Gas temperature is
too hot or alternates Probe is not plugged in
correctly, defective cable in
the probe line, formation of
condensate at the probe
tip. Check probe plug re-
spectively probe line
regarding damages
(loose connection), re-
move condensate from
the probe tip.