Connections, Figure 11, Hmt120 component board – Vaisala HMT120 User Manual
Page 23
Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 21
Connections
1011-151
Figure 11
HMT120 Component Board
The following numbers refer to Figure 11 above:
1
= Optional LCD display
2
= Adjustment buttons
3
= Indicator LEDs
4
= Service port
5
= Field wire terminals
1.
Remove the transmitter cover. See section Opening the Transmitter
2.
Insert the signal wires through the selected cable gland/conduit
fitting in the bottom of the transmitter or alternatively through the
rubber grommet at the back side of the transmitter.
3.
Connect the wires as indicated in Figure 12 and in Table 3 on page
22. Suitable wire size is between 0.5 mm
2
and 1.5 mm
2
.
2
4
1
5
3
SHLD
CH1
-
CH1+
CH2
-
CH2+
SERVICE PORT
ADJ
+
-
RH
T
C
A
L
2
4
1
5
3
SHLD
CH1
-
CH1+
CH2
-
CH2+
SERVICE PORT
ADJ
+
-
RH
T
C
A
L