If you use probe heating, be sure to mount the HMM170 probe head in a way that
prevents the heat from being conducted away from the probe. Tightly connecting
the HMM170 probe head to a metal structure may prevent the probe from
maintaining probe temperature above the dew point. It will also heat the structure
which may be undesirable.
Even if condensation prevention has been turned on, probe heating is not active if
supply voltage is below 18 V DC. For example, this is the case when HMM170 is
connected to Insight software using the Vaisala USB cable 219690.
More information
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Configuring condensation prevention (page 21)
Chapter 3 – Functional description
15
