Isotemp Basic 2-1Fisher 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.
Caution 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 (Figure 1-5). Compare the control temperature set point to the
temperature of the measuring device.
1. Press the Mode key until the Calibrate indicator lights.
2. Press up/down arrow to match the display to calibrated instrument.
3. Press Enter to store calibration.
4. Press the Mode key to return to Run mode.
Temperature Stabilization Periods
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 is not available.
s
If no keys are pressed for approximately five minutes while in Calibrate
mode, the system will reset to Run mode.
Calibrate the Control
Probe
To Next Page
Loading...