Techne DB-2TC - Manual (Page 32)

1. Begin with items that are cool.
2. The blocks should be pushed firmly to the right hand side of the recess with no air gap between
blocks. The right hand block will be used as the calibration block.
3. Switch on the unit and set the temperature display to 30°C.
4. Press all three buttons together and hold for 5 seconds until the amber “heat” light stops flashing
and remains permanently on.
5. Self-calibration will now begin and the unit will begin to heat.
6. After approximately 30 minutes the unit will have stabilized at approximately 40°C and the display
will change from showing temperature to read “EEEE”.
7. Accurately measure the block temperature within the thermometer hole in the right hand block.
8. Press the set button and release.
9. Press and hold the set button and use either the up or down buttons to adjust the display
temperature to equal the actual temperature measured.
10. Press the up and down buttons together to confirm the value. The amber “heat” light will stop
flashing and remain permanently on.
11. Self-calibration will now continue and the unit will ramp up to approximately 5°C below maximum,
i.e. either 95°C, or 195°C, depending on the model.
12. After approximately 30 minutes the unit will have stabilised and the display will change from showing
temperature to read “EEEE”.
13. Accurately measure the block temperature within the thermometer hole in the right hand block.
14. Press the set button and release.
15. Press and hold the set button and use either the up or down buttons to adjust the display
temperature to equal the actual temperature measured.
16. Press the up and down buttons together to confirm the value.
17. The unit will now begin to control with the new calibration parameters.
18. Allow 30 minutes for the temperature to stabilise.
19. Check that both the display temperature and the thermometer temperature are now between 99°C
and 101°C.
20. Press the set button and release to confirm the calibration. The set temperature will revert to 30°C.
21. Reset the set temperature to maximum (100°C) and allow a few minutes to confirm that the unit
actually achieves that temperature.
22. Calibration is now complete and the unit may be used normally.
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