8600 Series
2-1
Thermo Scientific
Section 2
Calibrate
Once the freezer has stabilized, the control probe may need to be
calibrated. Calibration frequency is dependent on use, ambient conditions
and accuracy required. A good laboratory practice would require at least an
annual calibration check. On new installations, all parameters should be
checked after the stabilization period.
Note
Before making any calibration or adjustments to the unit, it is
imperative that all reference instruments be properly calibrated.
s
Plug a type T thermocouple reader into the receptacle located inside the
lower door (see Figures 1-4 and 1-6). Compare the control temperature
set point to the temperature of the measuring device. See Chart 2-1 at the
end of this section for more detail.
1. Press the Mode key until the Calibrate indicator lights.
2. Press the right arrow until “CONT T = -XX.X” appears in the message
center.
3. Press up/down arrow to match the display to calibrated instrument.
4. Press Enter to store calibration.
5. Press the Mode key to return to Run or the right/left arrow to go to
next/previous parameter.
Startup - Allow 12 hours for the temperature in the cabinet to stabilize
before proceeding.
Already Operating - Allow at least 2 hours after the display reaches set
point for temperature to stabilize before proceeding.
Note During calibration, the temperature display will not be available.
If no keys are pressed for approximately five minutes while in calibration
mode, the system will reset to Run mode.
Calibrate Mode
Calibrate Control Probe
Temperature Stabilization Periods
Summary of Contents for Forma 8600 Series
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