3. You can now set the blinking reading to the correct value (for example, the equilibrium RH
of a salt solution) with the   and   buttons. Press ENTER to complete the adjustment.
If the adjustment has been successful, the following display appears:
4. The data is now stored in the transmitter memory. If the adjustment has not been
succesful, the following display appears:
In case of an error, perform the adjustment again. Whether the adjustment was successful
or not, HMI41 always returns to display the selected adjustment mode.
5. When the calibration is successfully done, power 
o HMI41 and disconnect the cable.
6.4.3 Troubleshooting HMI41 Adjustment
Table 6 presents a summary of the error messages that can appear during adjustment with the
HMI41.
Table 39 Common Problems During HMI41 Adjustment and Their Remedies
Error Message Probable Cause Remedy
This message can appear, for
example, if the dierence
between the reference
humidities is too small (<
50 %RH).
Carry out the adjustment again.
Chapter 6 – Calibration and Adjustment
67