Chapter 4: Lyo-Works Operating System
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29
Original instructions
7.
Calibration
– Some sensors in the Freeze Dryer can be calibrated. This
process should be done by a qualified technician or metrologist with reference
sensors that are known with certainty. An external reference sensor must be
placed at the same measurement point (as close as physically possible) as the
sensor being calibrated. The Collector temperature sensor has its own
reference thermocouple (type T) built into the sensor. The thermocouple is a
brown wire that is coiled inside the housing of the Freeze Dryer and can be
accessed by removing the lower stainless steel front panel. A thermocouple
meter can be used to read the thermocouple value as a reference value.
