Vaisala HMM100 - Manual (Page 24)

User's Guide _______________________________________________________________________
22 ___________________________________________________________________ M211024EN-C
Installing the Module
NOTE The measurement probe with cable is attached to the component board at
Vaisala. Do not disconnect and reconnect the cable.
1. Attach the module securely using the mounting holes on the
corners of the component board. Use the optional mounting bracket
(Vaisala order code 225979) if needed.
2. Make sure that the module has a good earth connection from the
plated mounting hole. See Figure 12 below.
NOTE The installation holes on the component board are compatible with
Vaisala HMM22 and HMM30 humidity modules. Remember to disable
temperature compensation (if any) in the measurement system when
replacing an old module with the HMM100. The temperature
compensation in the HMM100 is always enabled.
0905-043
Figure 12 Component Board (3-wire version)