HD2016R – Weighing Rain Gauge

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Make: Delta Ohm Model: HD2016R

✅ The sensor is a load cell located at the base of the rainfall collecting reservoir.

✅ Measurand : Rainfall.

✅ Sensor Type : NTC temperature sensor

✅ Signal Output : RS485 with Modbus-RTU or ASCII proprietary protocol SDI-12.

✅ Supplied With : Measuring circuit (AWG 19), Heater, M12 connector for the connection.

SKU: DELTAOHM-HD2016R

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Description

HD2016 is a rain gauge that detects the weight of the rainfall collected by a 400 cm² inlet. The sensor is a load cell located at the base of the rainfall collecting reservoir. The signal of the load cell is processed by the internal electronic board of the rain gauge in order to output the information on the rainfall.

Various outputs are available:

RS485 with Modbus-RTU or proprietary ASCII protocol
SDI-12
Voltage-free pulse contact output

The rain gauge is able to provide the total rainfall, the partial rainfall (from the last reset command or from the last reading command), the average rainfall rate in the last minute and in the last hour. The measured rainfall is regularly saved into a non-volatile memory, which retains the information even in case of power failure.

The automatic discharge of the rainfall collected allows using a compact and lightweight structure for the installation of the rain gauge.

So as to ensure accurate measurement even with low temperature climatic conditions, a version with heating which is automatically activated below +4 °C has been developed (HD2016R) so that snow deposits and ice formations are prevented.

Details & Specifications

Make	Delta Ohm
Model	HD2016R
General Specification	:-
Outputs	• Contact output: Isolated NO (Normally Open) contact (RON ≈ 1 kΩ, TON ≈ 60 ms) • Digital outputs: RS485 with Modbus-RTU or ASCII proprietary protocol • SDI-12
Resolution	• Rainfall: 0.001 mm • Weight: 1 mg • Rate: 0.001 mm/h or 0.001 mm/min • Temperature: 0.1 °C
Power supply	Measuring circuit: 10…15 Vdc
Power Consumption	Measuring circuit: ≈ 20 mA (1.5 A while discharging, typically for less than 1 minute with 300 cc and maximum 5 minutes with full reservoir)
Accuracy	• Rainfall: ± 0.2 mm (wind speed < 30 m/s) • Temperature: ± 1 °C
Operating Environment	0…+70 °C without heating
Collector Area	400 cm2
Precipitation Intensity	Maximum rainfall rate: 1000 mm/h
Protection Level	IP 64