Error messages - HM70

HM70 User Guide

Document code
English (United States)
Document type
User guide

If the HM70 displays an error message, check first that the sensor is connected properly. If there is condensed water in the probe, let the probe dry before resuming measurement.

In case of constant error, contact Vaisala (see Technical support).

Table 1. List of HM70 error messages
Possible HM70 error messages
Voltage required for Purge unavailable
Voltage required for Preheat unavailable
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