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The wireless multi-parameter sensor for mining borehole gas (hereinafter referred to as the sensor) is used for monitoring the health status of extraction boreholes. It provides fundamental data support for "full lifecycle management of boreholes," "one borehole, one project," and extraction effectiveness evaluation. The sensor primarily monitors parameters such as methane concentration, flow rate, pipeline pressure, temperature, and carbon monoxide concentration. It is battery-powered and offers two transmission methods: local storage and wireless automatic upload.
Product Description
The wireless multi-parameter sensor for mining borehole gas (hereinafter referred to as the sensor) is used for monitoring the health status of extraction boreholes. It provides fundamental data support for “full lifecycle management of boreholes,” “one borehole, one project,” and extraction effectiveness evaluation. The sensor primarily monitors parameters such as methane concentration, flow rate, pipeline pressure, temperature, and carbon monoxide concentration. It is battery-powered and offers two transmission methods: local storage and wireless automatic upload.
Feature
– The sensor is equipped with NFC (Near Field Communication) card reading functionality. Using the dedicated mobile app, it can automatically identify information such as borehole number, extraction time, and installation location.
– The sensor has an intelligent self-check function that can automatically recognize its own status and issue alerts for anomalies, such as low battery warnings.
– The sensor supports local data storage, with a maximum capacity of 1000 records.
– The sensor is battery-powered, requiring no external power supply.
– The sensor offers two wireless communication methods: Bluetooth and radio frequency (RF). It can work with smart terminals for local data reading or utilize the underground RF network for wireless data upload.
– The dedicated data processing software allows for automatic generation of reports and cumulative curves from the monitoring data.
– The sensor’s detection lower limit can reach 0.005 m³/min (DN50).
Technical Parameter
| Parameter | Measurement Range | Basic Deviation |
| Flow Rate (m³/min) (DN50) | 0.005～0.100 | ±0.01 m³/min |
| 0.100～3.500 | ±2.5% of the true value | |
| Methane (%CH₄) | 0.00～1.00 | ±0.05% CH₄ |
| >1.00～100.00 | ±5% of the true value | |
| Absolute Pressure (kPa) | 10.0～200.0 | ±1.0% FS |
| Temperature (℃) | -10.0～100.0 | ±1.0% FS |
| Carbon Monoxide (×10⁻⁶ CO) | 0～100 | ±4×10⁻⁶ CO |
| >100～500 | ±5% of the true value | |
| >500～2000 | ±6% of the true value |
Application
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