Chemtrac Systems, Inc.
Page 14
2.3
SIGNAL WIRING
The Dura-Trac and Dura-Trac
II
Sensors transmit the sensing signal to
Monitor/Controller by a multi conductor wires, see Figure 7 for signal wires
interconnection diagram. Twisted shielded cable should be used. The cable should be
enclosed in conduit for maximum protection against damage or electrical interference.
Do not run cable in same conduit with any other wiring.
CAUTIONS
R
Make sure the monitor’s power switch is turn to off position before making any
signal wiring connections.
(BLACK)
+24 Vdc
1
(RED)
Opto (W)10
Shield
Signal -
Vdc Gnd
5
4
3
2
Opto (O)
- Probe
+ Probe
Opto (B)
6
8
7
9
(WHITE)
(BLUE)
WARNING
TURN POWER OFF BEFORE MAKING ANY WIRE CONNECTIONS
TO AVOID DAMAGING THE ELECTRONIC CIRCUIT.
3
SMM
|
Sensor
4
6
5
7
8
1
2
11
14
13
12
15
16
1
9
10
*
*
*
*
3
2
4
*
8
6
5
7
19
9
20
12
11
10
17
18
(BROWN)
(WHITE)
(BLACK)
(RED)
CHEMICAL PUMP
SAMPLE ISO VALVE
24 VDC COMMON
FLUSH VALVE
6
4
5
3
2
1
12
11
10
8
7
9
16
15
14
13
18
17
19 20
FUSE: AGC-1.5A
GND
L
N
ON
G
L
N
OFF
FUSE
FIGURE 6. Signal Wires Interconnection Diagram