3.Press the “▲“ or “▼“ buttons to calibrate the data value higher or lower from the actual reading.
4.Press the “
Note: The “ 
values. 
”button to confirm the calibration adjustment.
”icon remains illuminated next to calibrated
Calibrate the Rain Gauge
The rain gauge on the
1.First, ensure
2.Place display unit close so you can monitor it during calibration.
3.Make a pin hole in the bottom of a plastic cup. Hold the cup over the rain gauge and fill it with exactly 1 cup (8oz) of water, allowing the water to drip into the rain gauge. You should hear the internal buckets tip and see water drain through the rain gauge.
4.A few seconds after each bucket tip, the display unit displays rainfall in approximately 0.01” or more increments.
5.The cup of water should take more than 20 minutes to empty; a quicker period will result in inaccurate calibration. Try to simulate a normal steady rainfall. When cup is empty of water, display unit should register 1.06”
Tips
•There should be nearly an equal number of water drops (about 25 water drops) between bucket tips. If not, adjust the calibration screws on the bottom of the
•If you don’t hear the buckets tipping and see water dripping alternately out of each drain, there may be an issue with the rain gauge or it’s adjustment. See Troubleshooting on page 21.
Adjustment
If the rain gauge doesn’t register close to 1.06”, make an EQUAL adjustment to the two calibration screws on the bottom of the
•To adjust the rainfall reading by 2% turn both screws 1/8 of a turn.
•To adjust the rainfall reading by 4% turn both screws 1/4 of a turn.
•To adjust the rainfall reading by 8% turn both screws 1/2 of a turn.
Watch the video at www.acurite.com/5n1
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