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8.2 Conductivity Calibration Notes
The tester can calibrate 84μS, 1413 μS and 12.88 mS conductivity calibration solution. User can
conduct 1 to 3 points calibration. Refer to the table below.
For conductivity calibration solutions, we recommend replacing the solutions after up to 5 times
of use to keep the standard solution’s accuracy. Do NOT pour the used calibration solutions back
into the solution bottles in case of contamination.
* Once conuductivity is calibrated, TDS, saliniity, and resistivity will be automatically calibrated.
Calibration Indication Icon
Calibration Standards
Measuring Range
84 μS
0 - 200 μS
1413 μS
200 - 2000 μS
12.88 mS
2 - 20 mS
8.3 For the self-diagnosis information, please refer to the table below:
Symbol
Self-Diagnosis information
How to fix
The meter cannot recognize the
conductivity standard solutions.
1. Make sure the probe is fully submerged in the
solution.
2. Check if the standard solution is expired or
contaminated.
3. Check if the conductivity probe (two black rods) is
damaged.
4. Check if the conductivity probe is contaminated.
If so, please use a soft brush with warm water to
clean up.
is pressed before
measurement is
fully stabilized.
Wait for to come up and stays on screen
before pressing
During calibration, readings
being unstable for over 3
minutes
1. Shake the probe to remove the air bubbles on the
surface of the black rods
2. Check if the conductivity probe is contaminated.
If so, please use a soft brush with warm water to
clean up.
3. Soak the probe in 12.88 mS solution for 10
minutes, then rinse with distilled water.
The calibration reminder is
triggered. It’s time to perform a
new conductivity calibration.
Perform conductivity calibration or cancel calibration
reminder in ZenTest settings.
