Product

Rain Gauge with Recorder and Transmitter

The EMCON Rain Gauge with Recorder and Transmitter provides accurate and continuous rainfall monitoring using advanced capacitive sensing technology. Its automatic siphon mechanism ensures uninterrupted measurement with minimal maintenance. The system features a built-in LCD display and SD card storage for convenient data recording. With low power consumption and durable construction, it is ideal for weather stations, environmental monitoring, and remote installations.

Measurement Principle

The sensor consisting of a capacitive transducer detects the water column height inside the measuring container. A built-in microprocessor-based electronic circuit converts the capacitance reading into a calibrated voltage output, ensuring precise and reliable measurements.

Measuring container

Receives water from the funnel that houses the capacitive transducer. The
calibrated volume ensures precise conversion of water level to precipitation in mm.

Siphon Mechanism

Once the water in the measuring tube reaches full capacity, a self-actuating siphon engages automatically.
Time for complete drainage cycle: ≤ 25 seconds.
After siphoning, the tube automatically resets to zero, allowing continuous measurement without manual intervention.

This low power demand makes the gauge suitable for solar-powered weather stations and unattended field installations.

Cable length

Sensor is supplied along with 10 meters of cable. In case more cable is needed it can be extended without no loss in data.

Key Advantages

No moving parts – eliminates mechanical wear and maintenance associated with tipping-bucket gauges.
High resolution and accuracy – ±0.28 mm precision over the full range.
Evaporation compensation – The sensor eliminates all the error of depletion of water caused by caused by evaporation.
Fast automatic reset – Once the container reaches to its maximum water level, The system goes into automatic siphon, emptying the container very quickly and ensuring uninterrupted operation.
Field-proven ruggedness – suitable for harsh outdoor environments and long-term data collection.

Special advantages

● No moving parts.
● Smart design.
● Maintenance free.
● Can extend the cable to few hundred meters without any loss in data.
● Sensor can be integrated to any logger very easily as the final     information is available in digital format.
● Fully indigenous.

Technical Specifications

Sensor Type
Capacitive transducer
Measurement Range
0 – 400 mm of precipitation
Output Signal
Digital TTL output. (Long cable length can be used and it does not affect the accuracy of the sensor)
Accuracy
±0.28 mm
Resolution
2 decimal resolution.
Funnel Diameter
80mm.
Operating Voltage
8 – 15 VDC
Current Consumption
12 mA typical
Drainage siphon Time
≤ 25 seconds.
Display
The current Rain information, Date-time in a Dot-matrix 2-line LCD display.
Data recording
Records the data in the internal SD card.
Data down loading
Can be down loaded directly to computer by connecting the SD card to a SD card reader and inserting the same to a computer.
Data downloading file format
Microsoft CSV file format or Excel. Data is made available with date and time.
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