YSI YSI 556 MPS, Set-Up, Operation & Calibration

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Calibration Tips
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Ensure Transport/Calibration Cup is loose to allow pressure equilibration before
calibration.
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The key to successful calibration is to ensure that the sensors are completely
submersed.
•
For maximum accuracy, use a small amount of previously used calibration solution
to pre-rinse the probe module.
•
Fill a bucket with ambient temperature water to rinse the probe module between
calibration solutions.
•
Have several clean, absorbent paper towels or cotton cloths available to dry the
probe module between rinses and calibration solutions.
•
If you are using laboratory glassware, remove the stainless steel weight from the
bottom of the probe sensor guard by turning the weight counterclockwise. When
the weight is removed, the calibration solutions have access to the sensors without
displacing a lot of fluid.
•
Make certain that port plugs are installed in all ports where sensors are not
installed. It is extremely important to keep these electrical connectors dry.