1 line supply wiring – Pyromation Series 423 User Manual
Page 7
6-1
LINE SUPPLY WIRING
Figure 5
Figure 6
Page 6
NOTE: RTD input extension wire should not be run in the same conduit as line voltage, nor should they be exposed
to excessive electrical noise.
5
6
7
7
6
5
RTD
RTD
NO CONNECTION
JUMPER
Figure 10
2 Wire RTD Hookup
Figure 11
4 Wire RTD Hookup
12 or 24 VDC Line Supply
120 or 240 VAC Line Supply
6-2
AC LINE SUPPLY CONVERSION
The 423 Series meter can be field changed from 120 to 240 VAC or back.
This is accomplished by changing the jumper on the PC board. The jumpers are
located in the rear next to the transformer. See figures below. (This change will
not void the limited warranty).
Figure 8
Figure 7
6-3
RTD INPUT WIRING
Figure 9
3 Wire RTD Hookup
GND
5
6
7
RTD
GND
1
2
.5A FUSE
D C
SUPPLY
-
+
Jumpers
Jumper