Most of the complexity of the RG-11 is in the software and injection-molded optics.
Sophisticated, but inexpensive to produce.
Industrial-Grade Optical Rain Gauge RG-9 Rain Sensor - แท้จาก seeedstudio
| รหัสสินค้า | AS00489 |
| หมวดหมู่ | วัดสภาพแวดล้อมและแก๊ส Environmental / Gas |
| ราคา | 3,585.00 บาท |
| สถานะสินค้า | พร้อมส่ง |
| จำนวน | ชิ้น |
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Introduction
Industrial-Grade Optical Rain Gauge RG-9 detects the size of raindrops and provides information on rain intensity to the users. It features easy-installation and maintenance-free, suitable for applications in weather and climate studies, hydrological network monitoring, agriculture, and other scenarios that need monitoring rainfall.
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Rainfall volume provides important information for people's decisions and actions in weather and climate studies, hydrological network monitoring, agriculture, food delivery, and many other industries. Taking agriculture as an example, rainfall is one of the most important sources of water for plant cultivation. With accessible precipitation information, farmers can make sound decisions for the irrigation schedule and amount, thus make sure there is sufficient water for crop growth, and not too much water that leads to waste, root rot, or other diseases.
Detecting rain intensity is of vital importance. Thus, this industrial-grade RG-9 Rain Sensor is a perfect fit. It's a reliable, cost-effective, maintenance-free, and compacted rain gauge that uses the change in light beams intensity to determine the rainfall status and the size of raindrop. It sensitively detects when raining is starting and when it is not.
This industrial-grade optical rain gauge is intended to replace conventional tipping buckets of rain gauges. It uses beams of infrared light within a plastic lens which are about the size of tennis balls. It is maintenance-free: with the round surface of the lens, there are no collections of debris, no moving parts to stick, or water-pathways to clog. The sensitivity levels include: Rain Drops, Very Light, Medium, and Heavy. The duration of the positive detection is also selectable: No Hold, Hold Time 5 Minutes, Hold Time 10 Minutes, and Hold Time 15 Minutes.
RG-9 Solid State Rain Sensor features an open-collector output that emulates a conventional tipping bucket, as well as RS232 serial communications that provide more detailed data allowing for configuration of the device. It can be configured through the serial port, or optionally via DIP switches. A built-in mounting arm allows for convenient mounting to weather station masts, buildings, and other infrastructure. It's also suitable for solar-powered applications.
Detecting rain intensity is of vital importance. Thus, this industrial-grade RG-9 Rain Sensor is a perfect fit. It's a reliable, cost-effective, maintenance-free, and compacted rain gauge that uses the change in light beams intensity to determine the rainfall status and the size of raindrop. It sensitively detects when raining is starting and when it is not.
This industrial-grade optical rain gauge is intended to replace conventional tipping buckets of rain gauges. It uses beams of infrared light within a plastic lens which are about the size of tennis balls. It is maintenance-free: with the round surface of the lens, there are no collections of debris, no moving parts to stick, or water-pathways to clog. The sensitivity levels include: Rain Drops, Very Light, Medium, and Heavy. The duration of the positive detection is also selectable: No Hold, Hold Time 5 Minutes, Hold Time 10 Minutes, and Hold Time 15 Minutes.
RG-9 Solid State Rain Sensor features an open-collector output that emulates a conventional tipping bucket, as well as RS232 serial communications that provide more detailed data allowing for configuration of the device. It can be configured through the serial port, or optionally via DIP switches. A built-in mounting arm allows for convenient mounting to weather station masts, buildings, and other infrastructure. It's also suitable for solar-powered applications.
Features
- Industrial-grade: round and reliable lens surface which discourages the collection of debris and dirt
- Easy-installation: on weather station masts, buildings, and other infrastructures
- Maintenance-free: as a low maintenance rain gauge, it can be used for 7-10 years without replacement
- Compacted Sized: as small as a tennis ball
- Wide Application Scenarios
-
Smart Agriculture
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Smart City
-
Climate Studies
-
Hydrological Network Monitoring
-
Condensation and Frost Sensing
-
Irrigation Control
-
Drop Detection
-
Process Control
-
Opening and Closing Skylights, Vents, Louvers, or Windows
Specifications
| Parameter | Value |
|---|---|
| Input Voltage | Range 5-15 VDC on J1 Reverse polarity protected to 50V or 3.3VDC through pin 8 on J2 |
| Current Drain | 110 uA nominal. (No outputs on, dry not raining) 2-4 mA when raining |
| Output | NPN Open Collector Output 500 mA / 80V/300mW Max |
| Operating Temperature | -40°C to +60°C (Will not detect rain when freezing) |
| DIP Selectable Sensitivity | Rain Drops Very light Medium Heavy |
| RS232 Port | 3.3V |
| Supported Baud Rates | 1200, 2400, 4800, 9600, 19200, 38400, 57600 |
| RG-15 | RG-9 | |
|---|---|---|
| High Accuracy Tipping Bucket | ✓ | - |
| Wiper Control | - | - |
| Drop Detection | - | - |
| Condensation Sensing | - | - |
| Irrigation Control | - | - |
| Rain Water Harvest | - | - |
| "It's Raining Mode" | - | ✓ |
| Low Power | ✓ | ✓ |
| Unique Hardware | - | - |
| Current Drain | 110 uA Nominal 4 mA Raining | 110 uA Nominal 4 mA Raining |
| Tipping Bucket Accuracy | ±10% in our controlled environment | - |
| Serial Communication RS232 | Command Based Bidirectional | Command Based Bidirectional |
Dimensions
How it Works
The patented Rain Gauge optical design keeps the beams inside the sensor, away from the influences of falling leaves and spiderwebs.
Hydreon Optical Solid State Rain Sensors generate infrared light that is directed within the lens to detectors. When water drops hit the outside surface of the lens, some of the infrared beams escape. The sensor detects the change in beam intensity, and determines the size of the rain drop that caused the change. The sophisticated circuitry and Digital Signal Processing detect tiny rain drops, while rejecting the effects of competing ambient light disturbances.
The sensor detects the lens surface condition, including that caused by dirt, contaminants, aging, and other factors. It properly compensates for these factors, making the device virtually impervious to environmental factors. Hardware and sophisticated software gathers information from individual raindrops and implements a proper control strategy for the selected mode. The system can detect individual drops of under half a millimeter in diameter.
Depending on the model, the algorithm can register accumulations of just one ten-thousands of an inch– a hundred times more sensitive than a typical tipping bucket. The sensor borrows technology that was developed over many years for automotive rain sensing windshield wiper controls.
We are able to offer these sensors at such a righteous price because the development was largely paid for through our research in the automotive field.
Refer to the Model Comparison page for the features and specifications for all models. Each Model Page has a description and link to the instructions/user guide and information about how it operates.
But don’t worry about the complexity of the Optical Solid State Rain Sensors. Think of them as a functional block that detects and communicates the rain sensing function for you– reliably, low maintenance, and at a low cost. The perfect Rain Sensor for your application.
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