Advantage Controls MicroTron Manual page 22

The Advantage Microtron controller is designed for many years of trouble free operation. Should a problem
occur, refer to the following chart to help identify the problem.
SYMPTOM
False reading
Will not calibrate
No system power
No output power
Not receiving water meter
contacts
If problem persists, contact our customer service department with the model number and serial number
of unit for free factory technical assistance at 800-743-7431.
Reset Zero Conductivity
It may be necessary to reset the zero value of the conductivity scale if the calibration is not responsive.
1. Remove the probe from the line and make sure it is clean and dry. Leave it out, or disconnect black
and red wire at probe.
2. Make note of current blowdown settings (trip, diff, Hi/lo Alarms and Limit) as they will be reset by this
procedure. Also, make note of cal factor and zero factor from diagnostics.
3. Push SET UP/RUN key and arrow to DIAGNOSTICS.
4. Push ENTER and arrow down to RESET CALIBRATE.
5. Make sure probe is clean and dry before going on.
6. Push ENTER and arrow up to SYSTEM SET.
7. Push ENTER and arrow down to ZERO CONDUCTIVITY.
8. Push the decimal key • and your current conductivity scale will appear. Continue to hit the decimal key
until the conductivity scale loops through the various scale settings and comes back to your scale,
then push ENTER twice.
9. Reenter you blowdown settings under the BLEED SET menu.
10. Reinstall the probe in the line and check conductivity against the actual reading.
11. Calibrate as needed using the CALIBRATION menu.
Recentering the pH
POSSIBLE CAUSE
Bad or dirty electrode
Out of calibration
Dirty electrode
Faulty electrode
Faulty wiring to electrode
Out of calibration
Power source
Cable from power supply
board to relays or fuse
Check relay fuse
Check ribbon cable from
login board to relays
Connection between unit and
water meter
22
SOLUTION
Clean as needed
Calibrate unit, see Page 10
Clean electrode
Replace controller or
electrode as needed.
Calibrate unit see Page 10
Check diagnostics menu - Pg 19
Check power source
Secure cable
Replace as needed
Secure ribbon cable & orientation
Check cable between water meter
and unit