Vaisala INTERCAP HMDW80 Series - Wiring; HMD82(D), HMW88(D), and HMS82

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 27
Wiring
WARNING
Connect only de
-energized wires.
NOTE
Transmitters with
a configurable humidity output parameter use the
marking
HUM on the screw terminal labels. The default output
parameter is relative
humidity (RH) with output scaled to 0 ... 100 %RH,
but the parameter can be changed using DIP switches. Changing the
parameter also changes the output scaling. See section
DIP Switches on
page 31
.
HMD82(D), HMW88(D), and HMS82
Two 4 ... 20 mA
outputs, temperature
output scaling
-40 ... +60 °C
(-40 ... +140 °F).
You must connect the
HUM channel even if
you only want to
measure temperature.
Connecting the T
channel is optional.
Alternate wiring with
one power supply.