Care & maintenance display unit care, In-1 sensor care, Calibration calibrate temperature & humidity – AcuRite 01035 Weather Station User Manual

Page 12: Calibrate the rain gauge

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Care & Maintenance
Display Unit Care

Clean with a soft, damp cloth. Do not use caustic cleaners or abrasives. Keep

away from dust, dirt and moisture. Clean ventilation ports regularly with a

gentle puff of air.

5-in-1 Sensor Care

Clean The Sensor

Clean with a soft damp cloth. Do not use caustic cleaners or abrasives that will

mar the polished surfaces of the rain collection funnel or the solar cell.

Scratches will result in decreased performance and reliability.

Insect Prevention

Insects may cause obstructions and interrupt data by nesting in or on the 5-in-1

sensor. To limit this problem, spray sensor with a household insect repellent.

Consult the insect repellent instructions prior to use.

Snow & Freezing Weather

The 5-in-1 sensor will not be damaged by freezing conditions. NOTE: If the rain

collector cup fills with snow and then melts, it will register as rain on the

display unit.

Clean The Rain Collector Cup

Remove and empty rain collector debris filter. The debris filter is located in the

rain collector funnel. Remove from the top by gently squeezing and pulling out.

Clean the Wind Vane & Anemometer

Remove foreign matter from the outside of the sensor for free movement of the

wind vane and anemometer. If needed, use a small amount of spray lubricant,

clear silicone or graphite powder on the anemometer for improved movement.

Calibration
Calibrate Temperature & Humidity

The indoor / outdoor temperature and humidity readings can be calibrated on

the display unit to improve accuracy. Calibration improves accuracy when

5-in-1 sensor placement or environmental factors impact your data accuracy.
1. Choose the weather category you wish to calibrate by pressing the up or

down arrow buttons until the category is displayed on the Selectable

Category part of the display unit.

2. Press AND HOLD the up and down arrow buttons and the “ ” button all

at the same time for 15-20 seconds.

• The display unit beeps, and all display data is hidden except for the

value being calibrated.

• “ ” (calibrate) and arrows appear next to the value being calibrated.

3. Press the up or down arrow buttons to calibrate the data value higher or

lower from the actual reading.

4. Press the “ ” button to confirm the calibration

adjustment. Note: The “ ” icon remains

illuminated next to calibrated values.

Calibrate the Rain Gauge

The rain gauge on the 5-in-1 sensor can be calibrated to improve accuracy.
Items Needed:

5-in-1 sensor, display unit, plastic cup, pin, screw driver

1. First, ensure 5-in-1 sensor is perfectly level using built-in bubble level.
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 10 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 5-in-1 sensor until an equal number of water drops are tipping

the buckets. Then, restart the calibration procedure.

• 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 15.

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 5-in-1 sensor. Turning screws

clockwise increases rainfall; counter clockwise decreases rainfall.
• 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.

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