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TROUBLE SHOOTING
Can't power on
1. Didn't press the power key properly
2. Batteries are not installed or are not installed properly
Solution:
1. Press power key for more than 0.3 seconds to turn on the device.
2. Check whether batteries are in good contact and correct polarity. You can also
remove the batteries >10 mins and then install the batteries again.
Low battery icon
1. Battery power is too low to provide accurate reading
Solution:
1. Remove all old batteries > 10 mins and then install new batteries with
correct polarity and good contact. Please don't mix new and old batteries since it is
easy to cause battery electrolyte leakage.
Unstable pH reading
1. Means the pH electrode is aging
Solution:
1. pH probe needs to be replaced
Error code E02
1. E02 means the measured value is lower than specified range
Solution:
1. Put the probe in normal tap water at room temp. for 30 minutes to cancel E02
from display.
2. If above is not working, run below procedure:
•
For pH probe, run calibration
•
For conductivity probe, run calibration
•
For D.O, probe, run 100% calibration
Before this, check if the probe electrode requires routine maintenance.
Error code E03
1. E03 means the measured temp. is higher than specified range
2. On D.O probe, it can also mea
n D.O. probe hasn’t been activated yet.
Solution:
1. Put the probe in normal tap water at room temp. for 30 mins to cancel E03 from
display.
2. If above is not working, run below:
•
For pH probe, run calibration
•
For conductivity probe, run calibration