Snow Sensor "Snow Con"
- The control unit has become more compact (23% reduction in installation area compared to previous models). - Each setting can be confirmed on a digital display, making adjustments easy. - In addition to the conventional operating mode, an 'eco' operating mode has been added. - Manual output is now time-limited and will automatically return to automatic operation after a maximum of 8 hours. - The snow detection method uses a snow-collecting plate system with over 30 years of proven performance. - The sensor unit is excellent in rust resistance and weather resistance, requiring no regular maintenance. - It is compatible with second melting power supplies. * Eco operating mode equipped The eco operating mode reduces the residual snow processing time (standard setting 3 minutes) based on the output time when the output is continuously ON for a certain period. (In the conventional operating mode, after precipitation or snow temperature is turned OFF, the residual snow processing operates and stops after a certain time.) * For detailed information, please download from the link below or feel free to contact us.
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basic information
【Main Specifications】 〇 Power Supply Voltage (Permissible Variation Range) AC 200V (±6%) Frequency 50/60Hz (Dual Use) 〇 Operating Temperature a) Sensor Unit: -20 to +40℃ b) Main Control Unit: 0 to +40℃ 〇 Installation Location a) Sensor Unit: Outdoor b) Main Control Unit: Inside Control Panel 〇 Detection Method a) Structure: Snow Detection Plate Method (Instantaneous Detection Type) b) Characteristics: Detection method based on a combination of moisture and temperature characteristics 〇 Main Control Circuit Microcontroller control using a 16-bit CPU (with flash memory) 〇 Input Signal a) Precipitation Detection: Electrode Resistance Drop Detection → 0.01 (g/square meter per second) or more b) Temperature Detection: Thermistor Temperature Drop Detection Measurement Range -10 to +30℃ 〇 Output Signal a) Snowfall Signal: Voltage-free contact signal 1a contact (Contact Permissible Current AC200V 5A) 〇 Power Consumption a) Snow Temperature = +4.0℃ or higher: Maximum 5W b) Snow Temperature = +4.0℃ or lower, Precipitation = OFF: Maximum 15W c) Snow Temperature = +4.0℃ or lower, Precipitation = ON: Maximum 30W d) Snow Temperature = -5.0℃ or lower: Maximum 30W
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For more details, please contact us or download the catalog.
Detailed information
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SN-421 Built-in Type
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Outdoor installation type
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Indoor installation type
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Indoor and outdoor compatible type
Line up（4）
| Model number | overview |
|---|---|
| SN-421 | Built-in type |
| SN-422 | Outdoor installation type |
| SN-423 | Indoor installation type |
| SN--424 | Indoor and outdoor compatible type |
Company information
Niigata Electric Co., Ltd. was founded in 1973 in Nagaoka City, Niigata Prefecture, a snowy region, with the aim of effective utilization of water resources and energy conservation in snow melting systems. Since then, we have developed various automatic control devices and sensors related to snow, including the snowfall sensor "SnowCon." In the field of snow measurement, we have introduced snow depth gauges, snow weight gauges, blizzard meters (SPC), and snow information systems, contributing to the development of snow and ice disaster prevention, snow information, and snow and ice research fields. Some of our developed products are unique to Niigata Electric and are not produced anywhere else in the world. Based on the technology, know-how, and achievements we have cultivated over the years, we will continue to actively engage in the development of new products, applied technology, and collaborative research to contribute to a better society and a more livable snowy region. Please look forward to the future of Niigata Electric.