Troubleshooting - Grant Optima TX150 Manual Del Operador

11.0 Troubleshooting

Symptom Possible cause
Temp continues Set temp is higher
to rise when not than liquid temp
expected
Set temperature Liquid type set does
too restricted not allow required set
point
Temperature Set temp is lower
does not rise than liquid temp
when expected
Set temperature is
too close to ambient
Display shows High temperature
"High
warning alarm has
Temperature tripped
Alarm"
Display shows Low temperature
"Low
warning alarm has
Temperature tripped
Alarm"
Unit showing Calibration values not
erratic set correctly
temperatures
New calibration Incorrect calibration
point is not value
saved
Only the Unit is in standby
Standby icon mode
can be
highlighted
Icons can be Program running
highlighted but
not selected
30424 V6
Page 39
Action required
Check that the bath set temperature is correct (see
section 5.2.9).
Change to different liquid type (see section 5.3.4).
Check that the bath set temperature is correct (see
section 5.2.9).
Increase the set temperature (see section 5.2.9) or
fit accessory cooling (see section 4.9).
Check that the bath set temperature is correct (see
section 5.2.9).
Check that high temperature alarm is correct
(section 5.3.6).
Check that the liquid level in the bath is adequate
(see section 6.4 for minimum fill levels).
Check that the bath set temperature is correct (see
section 5.2.9).
Check that low temperature alarm is correct (section
5.3.6).
Check that the liquid level in the bath is adequate
(see section 6.4 for minimum fill levels).
Restore the factory calibration settings (see section
5.4.1) then re-calibrate if required (see section 5.4).
The temperature calibration point is less than 20°C
from an existing calibration point – choose a higher
temperature (see section 5.4).
The measured liquid temperature is more than 5°C
away from selected calibration temperature.
Highlight and Select the Standby icon and Press "S"
to exit Standby mode.
Wait until program has finished or stop program.
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