Shield
+
Power and
measurement circuits
-
Brown
12-28 VD
C
Return
Blue
Earth
ground
Figure 3: Standard connections - without a PC
1.4.1b Standard connections - with a PC
IMPORTANT
To install the
HygroPro
in a hazardous (classified) area, see
"Hazardous area wiring connections" on page 6.
Refer to "Figure 4" on page 5 and Table 2 below, and
complete the following steps to wire the transmitter.
Table 2: Cable leads - with a PC
Lead
Connection description
Blue
Power supply (+) [12-28 VDC]
Brown
Power supply (–) [return]
White
RS485-RS232 converter (+) [positive]
Black
RS485-RS232 converter (–) [negative]
Ground
Earth ground
1. Connect an
RS485-RS232 converter
(customer-supplied)
to an available serial port on the PC.
2. Push the female connector end of the factory-supplied
cable into the mating male connector on the transmitter
module. Make sure the pins are properly aligned. Then,
secure the connectors together by sliding the metal
sleeve on the cable over the connectors and turning
it clockwise until it is tight.
3. Using the flying leads at the other end of the factory-
supplied cable, connect the transmitter to the external
system.
4. Trim any unused leads even with the outer cable
jacket to remove any bare wire and prevent accidental
short circuits.
Power
supply
24 VDC
RS485 ? RS232
converter box
PanaView
RS232
+
-
Blu
e
Brow
n
+ White
? Black
Eart
h
Ground
Figure 4: Standard connections with a PC
5
