Conductivity Calibration
The ECscan series tester allows up to 3 points calibration. For better
accuracy, we recommend that you perform 3 points calibration or
select a standard solution closest to the sample conductivity you are
measuring. The tester will automatically detect the calibration standard
and prompt the user to perform the calibration. When the calibration
is completed, all new calibration values will automatically override
existing data.
The following table shows acceptable conductivity range of standard
solution for each measurement range.
Make sure that using the fresh standard solution during the calibration.
DO NOT reuse the standard solution after calibration, contaminants
in solution will affect the calibration and eventually the accuracy of
the measurement.
Single Point Calibration
Ensure that you have selected 1 point calibration in the setup menu.
1.1 Press the Cal key, the tester shows ----/CAL 1.
1.2 Rinse the electrode with distilled water and place into the
standard solution. Stir tester gently to remove air bubbles trapped.
in the slot of the sensor. The tester will automatically recognize.
the standard solution and show the calibration value.
1.3 Press the Enter key, the default calibration value begins flashing.
1.4 If necessary, press the Cal key to modify the calibration value,
press the Enter key to confirm and move to the next digit. When
the setting is completed, make sure that the displayed value
matches the calibration standard.
1.5 Press the Enter key, the tester begins the calibration. When the
reading has stabilized, the display will show . Calibration
is completed.
Multipoint Calibration
Ensure that you have selected 2 or 3 points calibration in the setup
menu.
2.1 Repeat steps 1.1 through 1.5 above. When the first calibration
point is completed, the display will show ----/CAL 2, the tester
prompts you to continue with second point calibration.
2.2 Repeat steps 1.2 through 1.5 above until the display shows .
Calibration is completed.
Performing the conductivity calibration will simultaneously calibrate
the corresponding TDS and salinity values. To exit the calibration
without saving calibrated values, press the Meas key.
Temperature Calibration
The ECscan series tester is installed with a built-in temperature sensor
for automatic temperature compensation. During the measurement,
if the measured temperature reading differs from that of an accurate
thermometer, the tester needs to be calibrated.
1. Press and hold the Cal key to enter the setup menu.
2. Press the Enter key until the display shows /or /.
