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11
Troubleshooting
Section 11 - Troubleshooting
Heating System
Symptom
Cause
Action
Wrong temperature
The alarm is on
The temperature is more than
0.5°C from the setpoint, wait
for the temperature to stabilize.
Consider removing samples to a
different incubator
Wrong temperature on touch
screen after system has had
time to stabilise
The setpoint for temperature
is wrong
Check the setpoint
Heating not even
System not properly
calibrated
Calibrate each zone using a
high precision thermometer, see
“Temperature Calibration” on
page 48
CO
2
Gas Regulation
Symptom
Cause
Action
Wrong CO
2
level measured at
sample port
System not powered on
Check mains and main fuse
System is on standby or
switched off
Switch the system on
CO
2
gas regulator is OFF
Activate CO
2
gas regulator by
setting ‘CO2.r’ to ON in menu,
see “Menu items” on page 26
No CO
2
or wrong gas
attached to CO
2
gas input
Check gas supply, make sure that
1.0 bar of gas pressure is applied
Actual gas concentration is
higher or lower than setpoint
Check CO
2
set point at ‘CO.SP’
in the menu, see”Menu items” on
page 26
Actual gas concentration is
higher or lower than setpoint
Calibration of the gas
concentration is needed. Contact
a service technician for help if
required
Poor CO
2
gas regulation
Lid(s) are left open
Close lid(s)
Insulation missing or damaged
on lid(s)
Check the grey insulation on
every lid
‘CO2.L’ is shown on display
CO
2
gas concentration more
than ± 1% from setpoint
Allow system to stabilize by
closing all lids
‘CO.Pr’ is shown on display
No/wrong CO
2
gas pressure
to system
Check CO
2
gas supply; make sure
that pressure is kept stable at 0.5-
1.0 bar
Summary of Contents for K-Systems G185 SensorTech
Page 55: ...55 11 Troubleshooting...
