Seametrics PC-SERIES - Manual (Page 2)

The PC42 dual power supply is
designed for applications in which
a magmeter is used together with
a 4-20 mA transmitter such as the
AO55 or FT420. Although a single 24
Vdc power supply can be used, there
is a risk of a ground loop interfering
with proper operation of the 4-20
mA current loop. This risk is eliminated by the dual power supply.
The housing is rugged molded ABS plastic, NEMA 4X rated. It can
be wall or panel mounted. The PC42 can be hardwired to the AC
main supply or plugged into a standard outlet using the included
power cord. Inside there are separate terminals to connect the
two devices to the fully isolated supplies.
2.92
.75
4.93
4.93
1.25
TYP
SPECIFICATIONS*
115 Vac/230 Vac +/- 10% internally
switchable, 50/60 Hz
12 Vdc output +/- 1% @ 350 mA
24 Vdc output +/- 4% @ 100 mA
22 - 12 AWG
4.93” L x 4.93” W x 2.92” H
(125 x 125 x 74mm)
-4˚ to 140˚ F (-20˚ to 60˚ C)
NEMA 4X
Input Power
Output Voltage/Current
Teminal Block Wire
Size Range
Dimensions
Operating Temperature
Environmental
INSTALLATION and CONNECTIONS
Remove the cover to expose the four mounting holes at the bottom
of the cover screw tubes. Mark the mounting surface, drill, and
attach with screws. Do not drill additional holes in the box. Doing
so will allow moisture into the enclosure.
Waterproof strain reliefs for power
outputs (12Vdc & 24Vdc). Remove
cover to access terminal blocks.
Remove the 4 screws to
access mounting holes.
Holes are on 4.330
centers.
3 Conductor power cord, supplied (may be
replaced with suitable wiring)
PC42
DIMENSIONS
Caution 1: Important! Do not connect power to the PC42
until all connections have been made and confirmed cor-
rect, and the cover has been put back into place.
Caution 2: It is essential for safety and proper operation
to use a ground connection for the 115 Vac power. Do not
use this power supply without proper grounding.
PC-SERIES
Power Supply
115Vac, 50/60Hz
Earth
Ground
350 mA Max
100 mA Max
Pre-wired power cord
Replace if required
4-20 mA Device
Analog Output
PWR
SW
+ +
FT420
Display Module
Power Input
Sensor Input
(N/C)
PC42 Dual Power Supply
Pulse Output
Power Input
(N/C)
(N/C)
EX80/EX100 Series
Magmeter
24V 12V
AC AC G
AC AC
S
+
+
-
-
+
-
+
-
- -
-
+
*Specifications subject to change • Please consult our website for current
data (www.seametrics.com).