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CALIBRATION PROCEDURE
This procedure is used to fine tune and calibrate the block temperature at a specific
temperature setting. This process may be repeated for up to three (3) separate set-
points. If a fourth calibration set-point is entered, the first set-point entered will be
overwritten.
1. Turn unit on.
2. Set desired temperature.
3. Stabilize twenty (20) minutes or more, measuring the block temperature with a
calibrated precision instrument or thermometer.
4. Press and hold standby button, then press the temperature up button once. The
unit will beep two (2) times, confirming calibration mode. The display will now be
flashing.
5. Press the temperature up/down arrows until the display matches the temperature
probe/thermometer.
6. Press standby button to exit calibration mode and return to normal heating.
This process may be repeated at the same set-point multiple times for fine tuning if
desired.
The unit will now use the biased offset for that specific temperature setting and
increase or decrease temperature accordingly to bring the block temperature to set
temperature. The decimal point of the display will flash to indicate a biased offset is
being used. All other temperature settings will use the standard internal calibration. This
offset will be stored in memory and retained until reset.
To restore unit to factory setting:
Press and hold standby button while pressing the temperature down button once. The
reset will be confirmed with two (2) beeps. Press the standby button to exit calibration
mode and return to normal heating.
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TEMPERATURE TESTING
1. To ensure good thermal conductivity, select the proper Modular Heating Block for
your application. Select the proper tubes which are the proper size for the Modular
Heating Block. Close contact, with no air gaps, must be maintained between the
walls of the Modular Heating Block well and the sides of the tubes.
2. Fill the tubes so that the fluid level does not rise above the top surface of the
Modular Heating Block.
3. Select a temperature measuring device that is designed for immersion in liquids.
Place your calibrated temperature measuring device in one of the samples so it
reaches the bottom of the tube. Once the temperature measuring device is placed
in the fluid sample, ensure the fluid level is still below the top surface of the Mini
Modular Heating Block.
4. Set the desired temperature on the unit, allow the unit to reach this temperature,
and let the unit stabilize for an additional twenty (20) minutes or more before taking
any temperature readings.
5. If the measured temperature on your temperature measuring device does not
match the actual temperature on the display of the unit, then the single point
calibration procedure can be used. By doing this, the unit will now be more
accurate at that set-point for your specific application.
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