60 series: 2-wire, 4 to 20 mA output

Wall mount

Duct mount

RH only         HMW60U
RH and T       HMW60Y
RH only         HMD60U
RH and T       HMD60Y

70 series: 3-wire, variable voltage output

Wall mount

Duct mount

RH only         HMW70U
RH and T       HMW70Y
RH only         HMD70U
RH and T       HMD70Y

Relative humidity measurement

Measurement range
     duct mount
     wall mount
Sensor

0 ... 100 % RH
0 ... 95 % RH
Vaisala HUMICAP^® 180

Temperature measurement (Y models only)

HMD60Y and HMD70Y
     Measurement range
HMW60Y and HMW70Y
     Measurement range
Sensor

-20 ... +80 °C (-4 ... +176 °F)

-5 ... +55 °C (+23 ... +131 °F)
Pt 1000 IEC 751 class B

Operating environment

Operating temperature
     electronics
     sensor head (duct mount)
Storage temperature

-5 ... +55 °C (+23 ... +131 °F)
-20 ... +80 °C (-4 ... +176 °F)
-40 ... +80 °C (-40 ... +176 °F)

Inputs and outputs

Operating voltage
     60 series

     70 series
             0 ... 1 V
             0 ... 5 V
             0 ... 10 V
Power consumption at
24 VAC
     HMD/W70U
     HMD/W70Y

10 ... 35 VDC (RL=0 ohm)
20 ... 35 VDC (RL=500 ohm)

10 ... 35 VDC/ 9 ... 24 VAC
14 ... 35 VDC/12 ... 24 VAC
19 ... 35 VDC/ 16 ... 24 VAC


10 mA (typical)
12 mA (typical)

Mechanics

Housing
     sensor head (duct mount)
     electronics (duct mount)
     electronics (wall mount)

stainless steel
cast aluminum
ABS plastic