WIRING
At installation, be sure to comply with the following require-
ments:
IMPORTANT!
• Disconnect power to the unit before attempting any
connection or service to the unit
•
Do not bundle or route signal lines with power lines
•
Keep all lines as short as possible
•
Use twisted pair shielded wire for all output wiring
•
Observe all applicable local electrical codes
For the AC power connections use three wire sheathed cable with
overall cable diameter of 0.2" to 0.45" (5mm to 12mm). For signal
output use 18 to 22 gauge (0.25 mm
2
to 0.75mm
2
) shielded wire.
Overall cable diameter between 0.12" to 0.35" (3mm to 9mm).
WIRING FOR REMOTE PRIMO
®
CONFIGURATION
Wiring between the detector and the Primo amplifier comes complete
from the factory. If your installation requires the use of conduit, the
following are recommended steps for wiring of the detector to the
amplifier.
1. Remove the junction box lid. Carefully remove the wires connected
to the terminal blocks that run to the Primo amplifier. Note which
wire goes into which terminal. The chart below may be of assis-
tance for reference of wire color and terminal connection.
2. Run cable through conduit from Primo amplifier location, retaining
the wiring of the cable to the amplifier as supplied.
3. Complete conduit assembly on both ends and rewire cable into
junction box as wired when received. See wiring diagram below.
Connection No.
Description
Wire color
11
Coil
Green
12
Coil
Yellow
13
Main Shield
Yellow/green
45
Electrode
White
44*
Electrode Shield
Black
46
Electrode
Brown
40
Empty Pipe
Pink
44*
Empty Pipe Shield
Black
*Connections with the No. 44 are lying on the same potential
Remote style Primo Amplifier models can be ordered with longer
cable than our standard stock lengths of the standard cable; 15, 30,
50 and 100 feet. The following chart shows the cable style options
and the maximum flow medium temperature that can exist in the
application environment at a given length of that cable.
7
Wiring for Remote Primo Configuration
44
40
44
46
44
45
13
12
11
shield (black)
pink
brown
shield (black)
white
yellow/green
yellow
green
green
yellow
yellow/green
white
shield (black)
brown
pink
shield (black)
45
44
46
44
40
44
13 12 11
