Vaisala HUMICAP HMW92 - Figure 16 Wiring HMW92; Figure 17 Three-Wire Wiring for HMW92; Wiring HMW92

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 29
Wiring HMW92
You must connect the RH channel of the HMW92, even if you only want
to measure temperature. Connecting the T channel is optional.
1111-067
Figure 16 Wiring HMW92
If you want to use a single power supply for the HMW92, you must
connect the positive terminals (+T and +RH) together.
1211-007
Figure 17 Three-Wire Wiring for HMW92
-T -RH+T +RH
Power supply
10 ... 28 VDC
R
L
= 0 ... 600 Ω
Power supply
10 ... 28 VDC
R
L
= 0 ... 600 Ω
mA
mA
-T -RH+T +RH
mA
mA
Power supply
10 ... 28 VDC
R
L
= 0 ... 600 Ω