260-RGAI-70 Rain Gauge Analog Interface
4-20 mA Loop Output
The 260-RGAI-70 Rain Gauge Interface converts the signal from a tipping bucket rain gauge into a 4-20 mA current loop signal, ideal for input to a PLC or SCADA system. Each tip of the rain gauge bucket causes the output signal to increase 0.5% or 1% of full scale. Full scale represents 100 or 200 tips of the bucket (user selectable).
The 260-RGAI-70 Rain Gauge Analog Interface can be used with any tipping bucket gauge that has a dry contact output. The calibration of the gauge can be inches or millimeters. A common calibration unit is 0.01 of rainfall per tip of the bucket. In this case, the full scale output (20 mA) represents 1 inch of rain. The output remains constant at the end of each tip until the next tip occurs.
Applications
- Meterological Studies
- Irrigation Monitoring/Control
Features
- +/- 1% Accuracy
- 4-20 mA Loop Powered
- 12-24 Vdc Input
- NEMA Enclosure
- Rain Detector Mode (4 mA = no rain, 20 mA = rain detected)
Specifications
- Accuracy
- Electronics: +/- 1%
- Rain Gauge: depends on model chosen
- Input: Dry contact switch closure (rain gauge sold separately)
- Output: 4-20 mA Loop Powered (12-24 Vdc supply)
- Maximum Loop Resistance: Rmax = (Vsupply – 10V) / 20mA
- Rain Detect Mode: User selectable 2-80 minute pulse period
- Environmental: -40 °F to 158 °F (-40 °C to 70 °C)
- Dimensions: 3.85″ x 4.60″ x 2.18″ (98 x 117 x 56 mm)
- Weight / Shipping: 0.35 lbs / 1 lb ( 159g / 454 g)
