ADS Environmental Services RainAlert II QR 775008 A2 - Manual (Page 32)

Hardware Installation 3-11
Calibrating the Tipping Bucket
After installing and securing the tipping bucket at the location,
calibrate the tipping mechanism in the following way. This
calibration procedure is based on a tipping bucket designed to tip
every 0.01 inches of rainfall.
Note: The following instructions primarily address
tipping buckets supplied by ADS. For the best results,
ADS recommends following the calibration specifications
and procedures provided with the tipping bucket from
manufacturer.
1. Remove the funnel from the tipping bucket.
2. Place the tipping bucket on top of the base plate. Make sure
the base plate includes the three leveling feet.
3. Confirm the tipping bucket is level in the following way:
 Check the level according to both the X-axis and the Y-
axis using the integrated levels located inside the tipping
bucket or by placing a carpenter’s level over the top of the
bucket. Another option is to place the level across the base
plate of the tipping bucket assembly.
 Adjust the three leveling feet on the base plate as necessary
to ensure the tipping bucket is level, and secure the lock
nuts to prevent the feet from turning.
4. Fill a graduated syringe or cylinder with between 50 and 100
milliliters of water.
5. Gently drip 8.25 cubic centimeters (8.25 milliliters) of water
into one side of the tipping mechanism as close as possible to
the center. This quantity of water is equal to 0.01 inches (0.25
millimeters) of rainfall and the amount of rainfall required to
tip and pour out the contents of the tipping mechanism. Once
connected to the tipping bucket, the RainAlert II will register a
tip each time this occurs.