Steps To Verify Calibration - Decagon Devices pawkit Operator's Manual

Pawkit User Manual
6. Verification and Calibration
salt can absorb no more water, as evidenced by the presence
of free liquid. The slurry should take the shape of the cup
and flow when tipped with the amount of free liquid at a
minimum.

Steps to Verify Calibration

1. Take a vial of the 0.760
entire contents of the vial into a sample cup. Place the
Pawkit over the sample cup as described in the previous
section.
2. Press the left button (I) to take a reading. If it is reading
the correct water activity ±0.02, your Pawkit needs no
adjustment for this standard. Skip to step 9.
3. If the first reading was not the correct water activity
(±0.02), clean the Pawkit according to the instructions
in Chapter 5 and take a second reading. If it is reading
the correct water activity ±0.02, your Pawkit needs no
adjustment at this time and you may now skip to step 9.
If it is not reading correctly, continue to the next step.
Note: An error code of 9.99 at any time during the process
indicates that the sensor has failed and that the instrument
needs to be serviced. Refer to Chapter 5 for shipping
instructions.
4. Once the reading is finished, the right button (II) will
be active. Button II is only active until the Pawkit shuts
a
NaCl standard and empty the
w
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