Push-button calibration - HMT130

HMT130 User Guide

Document code
English (United States)
Document type
User guide
Figure 1. Adjustment buttons

You can calibrate and adjust the transmitter with the adjustment buttons on the transmitter component board. The 2-point humidity adjustment is carried out by using two relative humidity references: for example saturated salt points 11 %RH (LiCl) and 75 %RH (NaCl). The difference between the two humidity reference points must be at least 30 %RH. The difference between the two temperature reference points must be at least 30 °C (86 °F).

In push-button calibration, the transmitter outputs are by default relative humidity in the range 0 … 100 %RH in CH1 and temperature in the range −40 … +80 °C (−40 … +176 °F) in CH2 regardless what the actual transmitter settings are. Outputs mean in this case both the display and analog current outputs.