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VI.
Maintenance
The only required maintenance for normal uninterrupted operation of your controller is cleaning of the
electrode(s). After initial start up, it is a good idea to clean the electrode frequently until a schedule based on
need has been developed. Since each application is unique, it is difficult to estimate the required frequency
of cleaning. The first cleaning should take place after about one week of the system being on line.
To determine the required cleaning frequency, record the reading on the controller before the electrode is
removed for cleaning. After cleaning, record the new reading. If a change is observed in the two readings,
the electrode was dirty. The more significant the change, the dirtier the electrode. If no change occurs,
cleaning needs to be done less often.
Conductivity Electrode Cleaning Procedure
1.
Record the current conductivity reading.
2.
Turn off water flow through the electrode loop, bleed pressure from the line and remove
electrode.
3.
Use a clean cloth and a mild cleaning solution to remove loose dirt etc., from the flat
surface of the electrode.
4.
If the electrode has deposits such as scale attached to the electrode surface a more
aggressive cleaning approach will be needed. There are several ways to do this, the
preferred method being the one that is easiest for the user.
a.
b.
5.
Reinstall the electrode in the system. After the reading stabilizes, calibrate the unit to a
reliable test reading.
Many times an electrode can appear to be clean, but the unit still cannot be calibrated. If this is the case, use
one of the more aggressive electrode cleaning procedures listed in step 4 above. Recheck the calibration
after completion of this procedure. If no change was observed in the reading, replace the electrode. If a
change occurred but the unit still will not calibrate, repeat procedure as many times as necessary.
VII.
Troubleshooting
The Advantage NanoTron controller is designed for many years of trouble free operation. Should a problem
occur, refer to the following chart to help identify the problem. If replacement is required, follow the procedures
listed in the Warranty and Factory Service portion of this manual.
SYMPTOM
False reading .................................... Bad or dirty electrode
Will not calibrate ............................... Dirty electrode
No system power .............................. Check power source
Pulse timer not activating ................. Check wiring
Outputs not energized ...................... No flow
Use a mild acid solution to dissolve deposits.
Lay a piece of sandpaper (200 grit or finer) on a flat surface such as a bench
top. "Sand" electrode to remove stubborn deposits. (Do not wipe surface with
your finger.) Oil from your skin will foul carbon tips.
POSSIBLE CAUSE
Out of calibration
Faulty electrode
Faulty wiring to electrode
Check fuse
Check connections
Check external device
Check fuse
Make sure ribbon cables are secure
11
SOLUTION
Clean, as needed
Calibrate unit
Clean electrode
Replace electrode if needed
Replace wiring if needed
Plug into different receptacle
Replace as needed
Repair as needed
Repair/replace as needed
Check sample line for
clogged pipes or strainers
Replace as needed
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