CP : control panel, FC : frequency converter, SB : supply board, CB : cooling board, CC : control cable, LL : lid locking, BC : braking chopper,
BR : brake resistor, MR : mains reset
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2.11. Offset calibration
− Offset calibration is performed in order to equalize the tolerances of the
temperature sensor and the electronics.
Perform Offset calibration
when replacing:
Where/How
− the temperature
sensor
calibrate the temperature sensor.
− the CP
calibrate temperature sensor and read out the old
offset values and put them in the new CP.
− the CP-EPROM
Read out the old offset values and put them in the
new CP.
2.12. Protection
Mains power input
⇒
Mains input with overvoltage protection
Mains switch
⇒
Thermal overload protection (fuse)
FC
⇒
Electronic protection
Motor
⇒
Overtemperature cutout > 135°C (only 115 V
version).
Cooling
⇒
Overtemperature switch in centrifuge chamber and
at condenser.
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