Memmert TTC 256 Temperature test chamber (Generation 2003) - Manual (Page 52)

52
Advanced functions
CAL 1
+0,5 °C
CAL 3
+0,8 °C
CAL 2
-0,4 °C
Calibration at factory
150 °C 30°C -40 °C
Fig. 30 Temperature calibration (example)
Setting:
1. Set the desired compensation temperature in the SETUP (see Chapter 7.2 Basic appliance
settings (Setup) on page 46 ) and set the corresponding compensation correction value to
0.0 °C.
2. With a reference instrument, measure the deviation in the stationary state in the selected
compensation temperature.
3. Setting the compensation correction values in the SETUP. If the measured reference tem-
perature is too low, the compensation correction value must be set with a negative sign.
4. Perform a control measurement with the reference instrument.
5. Repeat the procedure for the other two balance points if necessary.
Example: Temperature deviation at 30 °C should be corrected.
1. Set compensation temperature CAL.2 in the SETUP to 30.0 °C and set the accompanying
compensation correction value to 0.0 °C:
h
°C °C °C
2. At a set setpoint temperature of 30 °C in normal operation, an actual temperature of 29.6
°C is measured with a calibrated reference instrument.
3. Set the compensation correction value for CAL.2 in the SETUP to – 0.4 °C:
h
°C °C °C