The operating microprocessor possesses a non-volatile memory. Upon
resumption or recovery from an AC power loss, the following will be
noted:
• All readouts will flash until any key is pressed.
• If unit was shaking at the time of power failure, it will resume
operation at the speed and timer settings that were entered at the time
that AC power failed.
An independent, accurate, and precise temperature measurement device is
needed for temperature calibration.
To achieve published specifications, the independent measurement device
must have a accuracy of at least 0.1°C. If using thermocouple-based
measurement, a thermocouple of 24 gauge wire is recommended.
1. Place the independent sensor near the geometric center of the
chamber.
2. Set the unit to control at the desired calibration temperature.
3. Allow the control and chamber sufficient time to settle out at the
control temperature. The required time is highly dependent on control
temperature and system load, it varies from minutes to hours.
4. Once the chamber temperature has settled out, record the temperature
displayed by the independent sensor. To obtain the best result, an
averaged temperature reading over approximately 5 minutes should be
used.
Note
This method calibrates to chamber air temperature and is sufficient
for most situations. In some cases, it may be desirable to calibrate to a
specific load and/or load location. The process is the same save for the
placement of the independent sensor, which is adjusted based on user
needs.
5. Press the POWER key. The unit should turn off.
6. Press and hold the TEMP UP and TEMP ON/OFF keys
simultaneously for approximately 5 seconds. The unit should enter
Calibration Mode as indicated by ‘CAL’ being displayed on the shaker
display and the calibration set point being displayed on the
temperature display.
7. Using the TEMP UP and TEMP DOWN keys, adjust the
temperature display to match the recorded independent sensor reading.
8. Press the POWER key. This completes temperature calibration.
MaxQ 6000 Shaker 5-3
Thermo Scientific
Section 5
Operation
AC Power Loss
Temperature
Calibration
Содержание SHKE6000 (4359)
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