Product Manual

Kestrel 3000 (Two-Button)

1. To set to the RH calibration values, with the Kestrel turned on and displaying the Dew Point

measurement (not Relative Humidity), press the On and Mode button at the same time for

approximately 6 seconds. The screen will display P1.

2. With P1 showing, press the On button again to bring up the rst calibration point value.

Adjust the value till 74.0 is showing by pressing Mode to change the value of the ashing

digit and pressing On to move to the next digit. (In Two-Button Kestrel 3000 units, the order

for the high and low calibration jars are reversed from other Kestrel units.) Once the tenths’

and ones’ place values are set, press On again to accept the calibration value. (The tenths’

place value cannot be changed.) The screen will display P2.

3. With P2 showing, press the On button again to bring up the second calibration point value.

Using the same method as above, set the value to 32.8, then press the On button.

4. Press Mode till the Kestrel displays the Relative Humidity measurement and do not press

any additional buttons at this time.

5. Place the Kestrel in the 1st jar with the impeller facing down. (For three button Kestrel 3000-3500 Series

units, the 1st jar will be the 32.8% (Low) RH jar. For Two-Button 3000 units the 1st jar will be the 74.0%

(High) jar.) Ensure the lanyard is hanging on the front side of the unit opposite from the RH sensor hole

in the rear. Ensure the lanyard is not in contact with the salt water solution.

4. Close the zipper case with all three jars inside and if using an additional insulated cooler and water jugs,

place everything inside the larger cooler with the lid closed. Ensure the salt jars remain level so that the

Kestrel unit maintains it position above the salt.