Vaisala INTERCAP® Humidity and  
Temperature Transmitter Series HMW80 
M211328EN-C  _______________________________________________________________________  1 
 
INSTALLATION 
1.  Find a suitable mounting location for the transmitter. The conditions at the location 
should represent well the area of interest. 
NOTE 
Do not install the transmitter on the ceiling. Avoid placing the transmitter near heat 
sources, ventilation,
 and direct sunlight. 
2.  Use the mounting holes to attach the mounting base securely. Use at least two 
screws (not included). The arrow on the mounting base must point straight up after 
installation. Proper orientation is important, so that air will flow through the vents 
on the bottom and top.  
3.  Connect the wiring to the screw terminals on the mounting base. The supply voltage 
and terminal assignments are model-specific; see Wiring on page 2. 
4.  After completing the wiring, connect the cover over the mounting base. 
 
Dimensions (in mm) 
76.9
123.7
9
5
5.5
24
81
127.3
77.9
60.3
59
Ø4.4 Ø4.4
32.4
20
 
 
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