72-910-16 Rev. N
Page 13 of 43
for conduit power and load connections. Supply (input) power is connected via
PL5
located on the relay board
(Fig. 6)
. The top part of this terminal block is removable to
allow for easy access to the connector’s three (3) screws.
Make sure that all conduit connections are water tight
.
The four (4) output relay terminal blocks are identified as:
PL1 (Bleed), PL2 (INHIB), PL3
(BIO A), and PL4 (BIO B).
These terminal blocks can be removed in the same manner
as
PL5.
The Bleed relay has a N.O. and a N.C. connection, the others are only N.O.
5.3 LOW VOLTAGE CONNECTIONS
5
The low voltage connections are found on the low voltage (right side) board (
Fig. 6
).
Use 22-24 AWG (,76 mm²) wire for: flow switch, drum levels, dry alarm, and water
meter connections . These signal wires must be run separate from AC power lines.
J10
J4
J5
DRY ALARM
RELAY (N.O.)
J3 J2
+5V
DRUM LEVEL
DETECTORS
CONTACT
METER
+5V
GND
J3
+5V
J3
OR
TOP
BOARD
WATER METER
TYPES
GND
B
L
K
W METER
ALARM
O
R
G
B
R
N
R
E
D
DRUM LEVEL
INHIB
BIO A
BIO B
FLOW
COND SENSOR
HALL EFFECT
TOROIDAL
PROBE
FLOW
SWITCH
(3X)
FLOAT
04-000-18
16-171-81-2 26" (,66m)
04-350-91
16-171-81-1 26" (1,17m)
16-171-81-4 26" (1,52m)
+ -
J8
4-20mA
mA
4
20
8
+
-
Fig. 7
5
Trained service personnel are required for all electrical connections. This product does not contain operator
serviceable parts.
