Wiring gmw93r/ra, Wiring gmw93, Figure 13 – Vaisala GMW90 User Manual
Page 29: Figure 14, Alternate wiring for gmw93r/ra, Figure 15, Recommended wiring for long cables, Figure 14 alternate wiring for gmw93r/ra, Figure 15 wiring gmw93
Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 27
Wiring GMW93R/RA
Recommended wiring for long cables:
1402-032
Figure 13
Wiring GMW93R/RA
-Vs terminal is internally connected to GND terminal, so you can also
use the -Vs terminal as common ground. Maximum cable resistance is
2.5
Ω (24V supply, 0 ... 10 V output):
1402-031
Figure 14
Alternate Wiring for GMW93R/RA
Wiring GMW93
GMW93 is wired in the same way as GMW93R/RA, except for the
humidity output that is not present:
1402-030
Figure 15
Wiring GMW93
T+
GND
-Vs
CO
2
+
+Vs
Power supply
18 ... 35 VDC
or 24 VAC ±20%
V
R
L
= 10 kΩ min.
V
RH+
V
T+
GND
-Vs
CO
2
+
+Vs
Power supply
18 ... 35 VDC
or 24 VAC ±20%
R
L
= 10 kΩ min.
V
RH+
V
V
T+
GND
-Vs
CO
2
+
+Vs
Power supply
18 ... 35 VDC
or 24 VAC ±20%
V
R
L
= 10 kΩ min.
V