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7. Humidity Calibration
The
MC-83
is supplied pre-calibrated. Re-calibration will be required
periodically (approx annually), depending on application, environment etc.
75% and 12% Relative humidity standards are available from TPS. Table
1 shows the Relative Humidity characteristics of these two standards.
When making up your own standards…
•
The solution must be saturated with the salt, i.e. no further solids will
dissolve.
•
Use distilled water.
•
Use a plastic bottle that allows the sensor tip to fit snugly into the top of
the bottle, making a good seal.
•
Allow 24 hours after mixing for the temperature to stabilise.
•
Standards can be stored (sealed) for approximately one year.