Specifications

HMW 40U
40/50 Series
X
XX
X
X
X
X
X
S
SSS S
SS
S
X
X
X
X
X
X
X
X
X
X
X
XX
X
X
X
X
X
XX
X
X
XX
X
X
X
X
S
S
S
S
S
SS
S
X
X
XX
X
X
X
X
X
X
X
HMD 40U
HMD 40Y
HMD 50U
HMD 50Y
HMW 50U
HMW 50Y
HMW 40Y
X
21/31 Series
X
X
X
S
S
S
S
X
XX
X
X
XX
X
SSS
S
X
X
XXX
X
X
X
HMW 21YB
HMW 31YB
X
XX
X
X
X
Product Features
Measurement of:
Accuracy:
Configuration:
Special Applications:
Powered by:
Calibration:
Output:
RH and temperature (T)
Dewpoint (Td), mixing ratio
Td, RH, T, and ppmv
RH one percent
RH two percent
RH three percent
Td two degrees Celsius
Duct-mount measurement
Probe with cable
Local digital display option
High temperature
High temperature & high humidity
Low temperature
Tight spaces
Intrinsically safe
Outdoor
Extreme humidity conditions
24 VDC
24 VAC
Optional 115/230 VAC *
Water activity, temperature
Alarm Relay output option *
mA 2-wire current loop
mA
Volts, selectable range
Serial
Relative Humidity only (RH)
Wall-mount measurement
Metal construction - additional
electromagnetic protection
Plastic construction
Ball Valve and Hot Tap compatible
NEMA - protection against dirt and
moisture (wash down)
Pressurized spaces - overpressure
& underpresssure
High levels of gaseous contaminants
Process requires sampling apparatus
Interchangeable sensor-no calibration
One point field calibration
Humidity Transmitter Selection Guide
S indicates especially significant feature that most distinguishes a particular product model from others.
HMW 21UB
HMW 21YB
RH, T,dewpoint, absolute humidity, mixing
ratio, wet bulb temperature, and enthalpy
BACK to Page 1 of the Selection Guide
-4-
*Can use the
internal power
module if alarm
outputs are not
used in same
transmitter.
BACK to Catalog Table of Contents