Vaisala MM70 - Manual (Page 55)

Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT
8. Calibration is done. To return to the basic display, first press the
BACK key and then press the EXIT key.
Last Adjustment Date
To see the last adjustment date, select Last adjustment date. You can
check this date also from the Device information. For more
information, see section Device Information on page 29.
Error Messages
If MM70 displays an error message, first check that the sensor is
connected properly and let the probe dry if there is condensed water in
the probe.
In case of constant error, please contact Vaisala Service Center. For
more information, see section Vaisala Service Centers on page 57.
Error Message Types
Eeprom read/write error
ADC malfunction
Operating voltage out of range
Analog voltage out of range
Temperature/humidity sensor open/short circuit
Temperature sensor current leak
Temperature/humidity measurement malfunction
Temperature value out of range
Relative humidity value out of range
Sensor not found
Amplifier chain malfunction
VAISALA _______________________________________________________________________ 53