Tipping Bucket Rain Gage

Part # 48195

rain gage

The tipping bucket rain gage is recognized as the standard for measuring rainfall and other precipitation in remote and unattended locations.

The integrated siphon mechanism delivers high levels of accuracy across a broad range of rainfall intensities. Each unit consists of a collector funnel with stainless steel leaf filter, an integrated siphon control mechanism, an outer enclosure with quick release fasteners, and base which houses the tipping bucket mechanism. The unit includes dual output reed switches with varistor protection (helps shield sensitive components against excessive transient voltage) as well as dual rainfall discharge outlets for water collection and/or analysis.

The bucket tips when precipitation of 0.01", 0.2 mm, 0.5 mm or 1.0 mm has been collected. Each tip activates a reed switch closure which is detected by a data logger and/or telemetry system.

It's also available with a larger collector measuring 11.1" (282.8 mm) in diameter.

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Technical Specifications

Receiver

200 mm (8 inch) or 282.8 mm (11.1 inch) diameter with machined aluminum rim

Sensitivity

One tip at 0.2, 0.5, 1.0 mm or 0.01 inch

Measurements

Range: 0-700 mm/hour
Accuracy: ± 2% 25-500 mm/hour, ± 1 tip from 1-25 mm/hour

Sensor

Tipping bucket with siphon

Siphon

0.4mm capacity of rainfall - made from brass with a non-hygroscopic outer body

Contacts

Type: dual reed-switch (make contact), momentary
Rating:12 VA (0.5 amp max)
Duration: 0.1 second

Physical dimensions

Height x diameter: 342 mm (13.5") x 229 mm 9"
Weight: 3 kg (6.6 lbs)

Bucket

Chrome plated, injected moulded non-hygroscopic ABS balanced ± 0.05 gms

Base

Die-cast aluminium

Mounting holes

Three (3) 10mm diameter mounting holes

Drain fittings

Able to attach 12 mm inside diameter tubing, to catch rainfall after passing through buckets

Pivots

Ground sapphire pivots with stainless steel shaft

Insect covers

Stainless steel mesh on all openings to prevent insects from entering gauge

Outer enclosure

Keyed to enable the release of the outer enclosure without the need for the removal of the three securing screws