Nova-Tech 2700 Series Benchtop Meters - Manual (Page 27)

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11. Conductivity Calibration (automatic)
For best results, periodic calibration with known accurate standards is
recommended prior to measurement. Calibrate with standards that are close in
value to your intended sample(s).
When using multi-point calibration, perform a calibration in each range that you
expect to use for best results.
If the conductivity electrode has been stored dry for some time, soaking in alcohol
or clean water for a few minutes can help performance.
1) Turn meter on, press MODE if needed for conductivity measurement mode.
2) Press CAL if needed to enter calibration mode. Rinse the electrode with
clean water then submerse into your conductivity standard— either 84 µS, 1413
µS, 12.88 mS, or 111.8 mS. Provide stirring for best results.
3) Use the up/down arrows to adjust the cell constant manually or press NEXT
to keep the nominal cell constant value and proceed with a typical automatic
calibration (recommended). If adjusting the cell constant manually, press
ENTER after ‘Stable’ appears to confirm the adjustment.
Before and after a manual calibration constant adjustment
4) Wait for the meter to lock on the calibration standard and press ENTER after
‘Stable’ appears to confirm the calibration point. The calibrated value, Range
(R) that was calibrated and the calculated cell constant are now shown.
Before and after a one-point automatic conductivity calibration with 1.413 mS