Vaisala HUMICAP HMW92 - Figure 20 Wiring TMW92; Figure 21 Wiring TMW93; Figure 22 Three-Wire Wiring for TMW93; Wiring TMW92

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 31
Wiring TMW92
1202-117
Figure 20 Wiring TMW92
Wiring TMW93
Recommended wiring for long cables:
1202-118
Figure 21 Wiring TMW93
3-wire connection with -Vs as common ground. Maximum cable
resistance is 2.5 Ω (24V supply, 0 ... 10 V output, relay not used).
1202-119
Figure 22 Three-Wire Wiring for TMW93
-T +
T
Po
we
r
su
pp
l
y
1
0
..
. 2
8
VD
C
R
L
=
0 .
.
. 6
00
Ω
mA
-T -Vs+T +Vs
Power supply
18 ... 35 VDC
or 24 VAC
±20%
V
Relay
max. 50 VDC
500 mA
R
L
=
10 kΩ min.
-
T -V
s+T +
Vs
Powe
r su
ppl
y
18 .
.. 3
5 VD
C
or 2
4 VA
C ±20
%
V
R
ela
y
R
L
= 10
kΩ m
in.