Eppendorf New Brunswick Excella E-24 Shaker - Manual (Page 20)

Operation
New Brunswick
™ Excella ® E-24 Shaker
English (EN)
20
If you wish to have the temperature display (indicated temperature) match the temperature at a given point
or match the average of a series of points within the chamber (actual Temperature), proceed as follows:
1. Let the unit equilibrate at or near the desired temperature. Record the indicated temperature.
2. Record the actual temperature.
3. Calculate the temperature correction value.
Actual Temperature – Indicated Temperature = Temperature Correction Value
4. Press the SELECT key until the function °C indicator illuminates.
5. Simultaneously press the or keys. The display will indicate CAL.
6. Using the and keys, enter the Temperature Correction Value calculated in Step 3.
7. Simultaneously press the and to save the Temperature Correction Value to memory.
5.8 Factory Calibration
To return to the factory calibration:
1. Press the SELECT key until the function °C indicator illuminates.
2. Simultaneously press the and keys. The display will indicate CAL.
3. Using the or key, set the Temperature Correction Value to zero.
4. Simultaneously press the and keys. The rapid pulsing of the °C indicator will stop.
5.9 Speed calibration
To calibrate the shaking speed:
1. Set the shaker to a speed that can easily be measured. If you are using a strobe, minimum speed should
be 250 rpm.
2. Compare the reading on the display to the measured reading.
5.9.1 Calibration adjustments
If an adjustment is needed:
1. Press the SELECT key until the RPM indicator light illuminates.
2. Press the and keys simultaneously. The display will indicate CAL.
3. Press either the or keys to change the displayed value to match the measured speed.
4. Press the and keys simultaneously to save the adjustment.
5. Turn the shaker off using the on/off switch, then turn it back on.
The °C light will pulse rapidly to indicate it is not operating in the factory default mode.