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MODEL TCL SECTION 4
WIRING
15
4.4 SENSOR WIRING
1. Shut off power to the analyzer.
2. Locate the chlorine signal board.
3. Insert the sensor cable through the conduit opening nearest the chlorine board.
4. Slide the board forward to gain access to the wires and terminal screws.
5. Connect the sensor cable to the chlorine board. Refer to Figure 4-4 or 4-5.
6. Once the cable has been connected, slide the board fully into the enclosure while taking up the excess
cable through the conduit opening. If you are using a cable gland, tighten the gland nut to secure the cable
and ensure a sealed enclosure.
Slot 1 (left) Slot 2 (center) Slot 3 (right)
communication input 1 (chlorine) input 2 (optional)
4.3.3 Alarm wiring.
The alarm relay terminal strip is located just below the
power connector on the power supply board. See
Figure 4-3.
Keep alarm relay wiring separate from signal wiring.
Do not run signal and power or relay wiring in the
same conduit or close together in a cable tray.
WARNING
Exposure to some chemicals may degrade the sealing
properties used in the following devices: Zettler
Relays (K1-K4) PN AZ8-1CH12DSEA
FIGURE 4-3. Alarm relay connections.