Rainfall

Rain gauges suitable for every need

Wide range of sensors to measure the quantity and intensity of precipitation. Our rain gauges are composed of a precipitation collection funnel that conveys the water into a double-tank receiver connected to a magnet. The magnet activates a read relay which generates a pulse that can be counted from an external counter.

Models are available equipped with a siphon positioned at the end of the collection funnel to regulate the flow of water in the event of heavy rainfall. This solution is ideal when the goal is to measure the total rainfall over a long period, not to measure the intensity.

Class A models are available which, following calibration in an internal laboratory, comply with the European standard UNI EN 17277: 2020, which defines the accuracy for measuring intensity and how to calibrate the instrument and correct the data.

• Design made in compliance to WMO Class A (UNI11452:2012) accuracy over intensity (see PN);
• Syphone to adjust the water flow (see PN);
• Allumium made for rugged installations;
• Heated versions availability (see PN);
• Inpulse output and external optional devices for 4-20 mA or Modbus outputs (XLA003.1/003.2).

PN DQA230 DQA231 DQA230.1 DQA231.1 DQA235 DQA236 DQA230A.3
Rainfall 01 Rainfall 02 Rainfall 03
Class A
(UNI EN
17277:2020)
YES YES NO NO YES YES NO
Calibration
certificate
Included for Class A On request On request Included for Class A On request
Diameter 203 mm 203 mm 203 mm 203 mm 360 mm 360 mm 203 mm
Collector area 323 cmq 323 cmq 323 cmq 323 cmq 1000 cmq 1000 cmq 323 cmq
Weight 1.3 Kg 1.4 Kg 1.4 Kg 1.5 Kg 3 Kg 3.2 Kg 5.5 Kg
Heater NO YES
24 Vac
(Max 60 W)
NO YES
24 Vac
(Max 60 W)
NO YES
24 Vac
(Max 50 W)
NO
Heater
operative
temperature
>-20…4°C >-20…4°C >-40…4°C
Siphone NO NO YES YES NO NO SI
Accuracy 0…500 mm/hr intensity
3%
UNI EN 17277:2020
(using correction formula)
Accumulate rainfall amount
0…20 mm/hr: ± 0.2 mm
20…240 mm/hr: 1%
>240 mm/hr: 2%
0…300 mm/hr intensity
3%
UNI EN 17277:2020
(using correction formula)
Accumulate rainfall
0…190 mm/hr: 3%
Up to 347 mm/hr:
4%
Max range 500 mm/h 300 mm/h 200 mm/h
Protections Capacitor debounce circuit Polarity reverse and
transient, Capacitor
debounce circuit
Reed contact individual protection
Operative
temperature
0…80°C -20…80°C 0…80°C -20…80°C 0…80°C -40…80°C 0…80°C
Cable Not included (DWA5xxA) Included. L=10 m
Material Housing: UV resistance aluminum
Tipping spoon: teflonate plastic
Base: plastic
Housing: aluminum
Tipping spoon: stain-less
steel
Base: PED
Collector: copper
Tip: stainless steel
Base: aluminium

Related Products

Lsi Wind Speed 02

Wind speed

compact size and high mechanical strength, these sensors are particularly suited for use in strong wind applications.

Lsi Wind Direction Sensors 02

Wind direction

Wind direction sensor with analog signal output. All models use a Hall effect encoding system.

Lsi Secondary Standard Pyranometers 01

Secondary Standard Pyranometers

These sensors are classified as ISO 9060 Secondary Standard. With a total daily uncertainty of only 2% within 0…180° field of view, fast response time,

Contact Us
By submitting this form with you information, you are indecating of our informal acceptance of our Privacy Policy