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CB / CB-UL, CBF / CBF-UL (E7) 07/2021 Page 166/197
22.6.2 Heating
Fault description
Possible cause
Required measures
Excess temperature. Having
reached the setpoint, the
temperature exceeds the
setpoint by more than the set
tolerance range value (more
than 10 min.)
Alarm message
“Temp. range”
Site of installation too warm.
Difference between the set
temperature and the ambient
temperature too low.
Acknowledge the alarm on the
controller. Observe the difference
between the set temperature and the
ambient temperature, see technical
data chap. 24.4.
Controller defective.
Acknowledge the alarm on the
controller. Contact BINDER service.
Semiconductor relay defective
Temperature controller not
adjusted.
Acknowledge the alarm on the
controller. Calibrate and adjust the
temperature controller.
Excess temperature.
Overtemperature safety
controller class 3.1 responds.
Alarm message
“Safety controller”
Safety controller setpoint
value exceeded.
Acknowledge the alarm on the
controller. Check setting of temperature
setpoint and of the safety controller
class 3.1 setpoint. If appropriate, select
suitable value.
Too much external heat load.
Acknowledge the alarm on the
controller. Reduce heat load.
Controller defective.
Acknowledge the alarm on the
controller. Contact BINDER service.
Semiconductor relay defective
Safety controller defective.
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 chamber or
closing the door.
Alarm message
“Temp. range”
Chamber door not properly
closed.
Acknowledge the alarm on the
controller. Completely close chamber
door.
Door gaskets defective.
Acknowledge the alarm on the
controller. Replace door gasket.
Controller defective.
Acknowledge the alarm on the
controller. Check the function of the
temperature controller.
Door gasket defective. Replace door gasket.
Temperature controller not
adjusted.
Calibrate and adjust the temperature
controller.
Chamber doesn’t heat up.
Alarm message
“Safety controller”“
Inner chamber temperature
has reached the safety
controller setpoint. Safety
controller set too low.
Acknowledge the alarm on the
controller. Check temperature setpoint
setting. If appropriate, select suitable
safety controller setpoint (chap. 12.2).
Safety controller defective.
Acknowledge the alarm on the
controller. Contact BINDER service.
Chamber doesn’t heat up.
Pt 100 sensor defective.
Contact BINDER service.
Heating element defective.
Semiconductor relay
defective.
Controller defective.
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