Hach-Lange AMTAX indoor sc - Manual (Page 58)

58
Troubleshooting
ANALYZ. TO COLD
Instrument goes into
the service state
Instrument interior has
been below 4 °C
(39 °F) for more than
5 minutes
Close instrument,
check heating
Reset error manually
TEST/MAINT>RESET
ERROR
NO HEAT UP
Instrument goes into
the service state
Instrument cannot heat
interior adequately.
(internal temperature
< 20 °C (68 °F) for
30 min)
Close instrument,
check heating
Reset error manually
COOLING FAILED
Service state, starts
automatically after
cooling down
Instrument interior is
too warm (> 47 °C
(117 °F) with electrode
temp. 45 °C (113 °F)
> 52 °C (126 °F) with
electrode temp. 50 °C
(122 °F) or >57 °C
(135 °F) with electrode
temp. 55 °C (130 °F) )
Check air filter and
clean/replace,
check fan. Manual reset or when
temperature falls 2 °C
(3.6 °F) below limit
HUMIDITY ANALY Service state
There is liquid in the
collecting tray Identify cause and
rectify
Reset error manually
HUMIDITY PROBE
Service state, the
filtration probe sc is
isolated from the mains There is liquid in the
filtration probe
enclosure
Immediately take
filtration probe sc out of
operation and contact
service. Take the
filtration probe sc out of
the tank and store the
filter modules so that
they remain moist.
(See operating
instructions for the
filtration probe sc).
Reset error manually
PROBE MISSING
Service state, the
filtration probe sc is
isolated from the mains The filtration probe sc
is faulty or not
connected
Immediately take
filtration probe sc out of
operation and contact
service. Take the
filtration probe sc out of
the tank and store the
filter modules so that
they remain moist.
(See operating
instructions for the
filtration probe sc).
Reset error manually
TEMPSENS DEFECT
Service state, fan
running, heating off
The temperature
sensor for the internal
instrument temperature
is faulty Immediately switch off
instrument, contact
service, replace main
circuit board
Reset error manually
CUVSENSOR
DEFECT Service state, cuvette
heating off
The temperature
sensor for the cuvette
is faulty
Contact service,
replace cuvette/sensor
Reset error manually
CUVHEAT DEFECT
Continued
measurement
The cuvette is not
being heated
adequately
Close instrument door
and wait 10 minutes if
error accurs again,
contact service
Reset error manually
7.2.2 Error messages (continued)
Error displayed Instrument reaction Cause Solution Reset error