24
Operation
4.2.3 Calibration Preparation
The following is a general outline of the steps required to calibrate all the sensors.
• Select a calibration standard whose value is near the field samples.
• Clean and prepare the sensors.
• To ensure accuracy of calibration, discard used calibration standards appropriately.
Do not reuse calibration standards.
1. Remove Sensor Guard. 2. Attach the
Calibration Cup.
3. Unscrew and remove
the cap from the
Calibration Cup.
4. Fill the Calibration Cup
half-full with deionized
water.
5. Place the Cap on the
Calibration Cup.
6. Shake the Sonde to
make sure each sensor
is free from
contaminants that might
alter the calibration
standard. Repeat
several times.
7. In a similar manner,
rinse the sensors twice
with a small portion of
the calibration standard,
each time discarding the
rinse.
8. Complete the
calibration.
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