BINDER C 150 - Manual (Page 50)

C 150 (E2) 12/2012 page 50/90
10.4 Safety controller temperature alarm
The set temperature value (set point type “Limit” or “Offset”) was exceeded.
Immediate alarm
Visual display
LED Upper display, alternating
Temperature Alarm code
Flashes
continually lit
Audible alarm: buzzer (ongoing sound)
Switching the zero-voltage relay alarm output.
Actions:
Check the setting of the operating function “Al.S” (limit temperature) or “Ot.S” (offset temperature) in
operating modes HAND (chap. 7.2) or USER (chap. 7.3). The limit temperature should be at least 2 °C
above the temperature set point; the offset temperature should be ≥ 2 °C. If necessary, adjust the rele-
vant value.
Check whether samples were inserted into the C 150 that produce heat under the climatic conditions
in the unit.
Check the ambient conditions. The ambient temperature must be at least by 7 °C / 12.6°F below the
temperature set point of the C 150. Protect the C 150 from direct sunlight. Ensure sufficient ventilation
around the installation location to prevent any buildup of heat in the unit.
Check whether the sterilization cycle was aborted and the unit has returned to its standard operational
status before the C 150 has cooled down.
If points 1 to 4 do not reveal the source of the fault, it may be that the unit is faulty. Please contact
BINDER Service.
10.5 Temperature tolerance range alarm (high and low temperature)
Main controller temperature alarm: The temperature has risen above or fallen below the temperature
alarm threshold.
Immediate alarm
No alarm signal is emitted during the temperature delay time after the outer door is closed
Visual display
LED Upper display, alternating
Temperature Alarm code
Flashes
Flashes
Audible alarm: buzzer (intermittent sound)
Switching the zero-voltage relay alarm output
Actions:
Check the setting of the operating function “AL.1” (temperature alarm threshold) in operating mode
USER (chap. 7.3
). The value should be ≥ 1K. Adjust the value if necessary.
Use the displayed temperature to verify whether the temperature alarm threshold has been breached,
i.e., too cold or too warm.