MODEL 2501 — Tipping Bucket Rain Gauge
General Description
The Model 2501 Rain Gauge was designed for the National Weather Service to provide a reliable, low-cost tipping bucket rain sensor. Its simplicity of design assures trouble-free operation, yet provides accurate rainfall measurements. The tipping bucket mechanism activates a sealed reed switch that produces a contact closure for each 0.01 in. or 1 mm of rainfall. The gauge has an 8 in. orifice and is manufactured of aluminum. Enclosure surfaces are powder coated gloss white. The funnel has a screen to prevent debris from entering the gauge. It is shipped complete with mounting brackets and 25 ft. of signal cable.
The reed switch output connects directly to HydroLynx ALERT2 data transmitters and most data loggers. Need snow measurement or a 12 in. orifice? See the Model 2500 / 2500E heated rain/snow gauge, or compare all rain gauges.
Specifications
| Sensor type | Tipping bucket |
| Output | Momentary SPST NO pulse |
| Switch | Sealed reed switch |
| Sensitivity | 1 tip per 0.01 in. or 1 tip per 1 mm |
| Accuracy | ± 3% up to 6 in./hr. |
| Contact rating | 3 watts, 28 Vac, 0.25 amps, 120 Vac |
| Size | 8 in. dia x 15 in. H |
| Mounting | 3 legs, ¼ in. diameter bolt holes on 9½ in. diameter bolt circle |
| Weight/shipping | 6 lbs/10 lbs. |
MODEL 2501 Tipping Bucket Rain Gauge
Ordering Information
| 2501 | Tipping Bucket Gauge with 0.01 in. Calibration |
| 2501M | Tipping Bucket Gauge with 1 mm Calibration |
| 2501C | Sensor Cable |
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HydroLynx Systems
830 Fesslers Pkwy, Suite #108
Nashville, TN 37210