Decagon Devices pawkit Operator's Manual page 37

itself off. Press it once, and you will see the following
screen:
5. This screen shows that you are in the calibration mode.
This one in particular shows that you are ready to adjust
calibration upwards for the 0.76 standard. The numbers
in the upper right corner indicate the water activity
measurement that your Pawkit just read. Press the II
button to scroll through the other selections. They are:
u76, d76, u25, d25, Sto, u92 and d92. The "u" and "d"
before each number stand for "up" or "down" adjust-
ment for each standard. The numbers (e.g. 25, 76 and
92) correspond to the water activity of a verification
standard (0.76, 0.25 and .92
stores a reading.
6. As an example, if your NaCl reading is lower than it
should be, press the II button to scroll to "u76" ("adjust
up for 0.76 standard"). If it is higher than it should be,
scroll to "d76" ("adjust down for 0.76 standard").
Note: If you accidentally scroll past your desired adjust-
ment screen, simply keep pressing the II button until you
cycle back to the right screen.
u76
33
Pawkit User Manual
6. Verification and Calibration
0.76
a
). The Sto position
w