Table 3-1. Direct Support Troubleshooting - continued
TEST OR INSPECTION
ROWPU ASSEMBLY - continued
INOPERABLE DISSOLVED SOLIDS MONITOR SYSTEM
High voltages in this equipment can cause serious injury or death. When
applying power during a test, take proper measures to ensure personal safety.
Never work on electrical equipment unless there is another person nearby who is
familiar with the operation and hazards of the equipment and who is competent in
administering first aid.
Remove cover from TDS monitor and check for blown/defective fuse and disconnected wires.
Replace fuse and/or reconnect wire.
Check for 115 VAC at TDS MONITOR POWERjack, J12.
If voltage is measured, go to step 4.
Remove power at power source and perform a point-to-point continuity check of power circuit.
If wiring is open, tighten connections and/or replace defective wire.
Check for defective sensor as follows:
Disconnect sensor at pipe.
Check Point A
Check Point B
Required Value in Ohms
Pin B, J11
Pin A, J11
All other pins