BINDER CB 60 - Manual (Page 123)

CB (E6) 09/2013 Page 123/144
Fault description / indication Possible cause
Required measures
Too low temperature.
Having reached the setpoint,
the temperature falls below the
setpoint by more than the set
tolerance range value (more
than 10 min.) or the
temperature doesn’t reach the
tolerance range within 3 hours
from turning on the unit or
closing the door.
Unit door not properly closed.
Confirm the alarm (chap. 11.4).
Completely close unit door.
Door gasket defective.
Confirm the alarm (chap. 11.4).
Replace door gasket.
Controller defective.
Confirm the alarm (chap. 11.4).
Check the function of the temperature
controller.
Temporary disturbance of the
temperature control.
Confirm the alarm (chap. 11.4). Turn
off the chamber. After approx. 5
minutes turn on the chamber again.
Upon renewed alarm, contact
BINDER service.
Alarm message
“Temp. range”
Chamber doesn’t heat up.
Safety controller has turned off
the heating. Limit temperature
reached. Safety controller set
too low.
Confirm the alarm (chap. 11.4) and
allow the unit to cool down. Check
temperature setpoint and setting of
safety controller. If appropriate, select
suitable limit value.
Alarm message
“Safety controller”
Safety controller defective.
Confirm the alarm (chap. 11.4).
Contact BINDER service.
Chamber doesn’t heat up.
Semiconductor relay defective.
Contact BINDER service.
Controller defective.
Unit without function.
No power supply. Check connection to power supply.
Wrong voltage.
Check power supply for voltage of
100-120V or 200-240V.
Unit fuse has responded.
Check unit fuse and replace it if
appropriate. If it responds again,
contact BINDER service.
Controller defective.
Contact BINDER service.
Nominal temperature exceeded
by 10° due to unit failure. Over
temperature protective device
(class 1) responds.
Very long heating-up times. Chamber fully loaded.
Load the unit less or consider longer
heating-up times.
The displayed actual
temperature value deviates
largely compared with a
reference method..
Temperature control not
adjusted.
Calibrate and adjust the temperature
control.
Temperature sensor defective.
Transfer the cultures to another
incubator and contact BINDER
Service.
21.2 Gas cylinder pressure too low
The alarm messages indicate that the pressure in the supply lines of CO
2
, O
2
, and N
2
(unit with O
2
control) has dropped below 0.3 bar. If no gas cylinder changer is installed, the gas cylinder must be
replaced. Observe the safety instructions and the maximum outlet pressure (chap. 4.3).
Prerequisite for pressure alarm messages for O
2
and N
2
(unit with O
2
control) is that the O
2
/
N
2
control with the respective alarms are activated (chap. 6.3).