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P a g e
USER MAINTENANCE
Note:
Performing a temperature display calibration requires a temperature reference device. Please
see the
Reference Sensor Devices entry
on page
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for device
requirements.
Temperature calibrations are performed to match the chamber temperature display to the actual air
temperature in the incubation chamber. The actual air temperature is supplied by a calibrated
reference device. Calibrations compensate for long-term drifts in the microprocessor controller as
well as those caused by the natural material evolution of the sensor probe in the heated and chilled
incubation space. Calibrate as often as required by your laboratory or production protocol, or
regulatory compliance schedule. Always calibrate to the standards and use the calibration setup
required by your industry requirements or laboratory protocol.
A
quick reference card
for the calibration procedure steps can be found on page 57.
Suggested Single Point Offset Calibration Setup
3 ) The incubator chamber door
must be closed and latched. Use
the tape to seal any exterior gaps
caused by the probe wires.
2 ) Place the sensor probes inside the cultivation
chamber with the probe heads at least at least 2 inches
(50 mm) from the surface of the shelving or walls to
prevent heatsinking. Secure with non-stick, heat-
resistant tape.
If you are using only one thermocouple, place the
sensor probe head as close to the geometric center of
the chamber as possible.
Heat-resistant
non-stick tape
recommended
1 ) Introduce the reference device
thermocouple sensor probes through
the chamber door space. The door
must close and latch fully.
4 ) Place the Defrost swtich on the
back of the unit in the “O” Off position
for the duration of the calibration
procedure. The defrost cycle can
impact the chamber temperature
sufficient to result in an inaccurate
calibration.
DEFROST
