HMDW110 series transmitters have two adjustment points for both humidity measurement and temperature measurement:
- The first point (low point) affects offset across the entire measurement range. For humidity adjustment, the low point must be < 50 %RH.
- The second point (high point) affects measurement gain. For humidity adjustment, the high point must be > 50 %RH.
Additionally, two-point humidity calibration requires that the difference between the two points is ≥ 30 %RH.
Temperature adjustment points must be in range ‑40 ... +60 °C (-40 ... +140 °F) with more than 30 °C (86 °F) difference.