Replacing HUMICAP sensor on HMD110/112 and HMW110/112 - HMS110 - HMW112 - TMI110 - HMS112 - HMD110 - HMW110 - HMD112

HMDW110 with TMI110 User Guide

Document code
M211726EN
Revision
E
Language
English
Product
HMS110
HMW112
TMI110
HMS112
HMD110
HMW110
HMD112
Document type
User guide
  • New HUMICAP® humidity sensor (HUMICAP180R or HUMICAP180V)
  • New filter (always recommended when replacing the sensor)
  • Duct models only: medium size crosshead screwdriver (Pozidriv)
  1. Power down the transmitter.
  2. Duct models only: loosen the tightening screw on the fastening flange and pull the probe out of the duct.
  3. Remove the filter to access the sensors.
    1
    Vaisala HUMICAP® sensor. Handle by the plastic frame.
    2
    Temperature sensor. Do not touch or attempt to remove.
    3
    Sensor socket.
    4
    Transmitter probe.
  4. Pull out the old HUMICAP® sensor and insert the new one.
  5. Perform a two-point humidity calibration on the serial line using the FCRH command.
  6. Insert the new filter.
  7. Duct models only: push the probe back into the duct, to the same depth where it was before. Tighten the tightening screw on the fastening flange.
  8. Power up the transmitter.