HBSF6-800 SF6 Density and Dew Point Comprehensive Gas Monitoring System

Features or Overview

1. The SF6 humidity sensor has an automatic calibration function, automatically correcting zero-point deviation

2. Professional chamber design effectively shortens the distance between the humidity sensor and the main body

3. Density uses a combination of one-time hardware compensation and secondary software compensation technology, achieving higher accuracy

4. Can automatically activate low-pressure alarm and lockout devices according to preset values or user-defined values

5. Fully isolated RS-485 bus communication interface with dynamically configurable terminal resistor

6. Automatically draws state change trend charts through background software

7. Users can define alarm and lockout threshold values

8. Fully sealed, anti-interference, suitable for outdoor and low-temperature environments

9. Supports online calibration function and firmware update function

The SF6 micro-water density online monitoring device is mainly used for online monitoring of high-voltage electrical equipment insulated with SF6 gas in substations. This SF6 micro-water density online monitoring device can monitor in real time the pressure, density, temperature, dew point, and PPM value of SF6 gas in high-voltage electrical equipment. It provides SF6 gas moisture over-limit alarm function and density alarm. The data processing server automatically collects and stores the monitoring data, and completely saves the data change trends. The data processing server displays and processes the received data, providing test results and change trend curves. It can also upload the monitoring data and alarm signals in real time to the superior monitoring center or remote monitoring backend.

Specifications

Mechanical control section

Display range: -0.1MPa~0.9MPa (gauge pressure) 0~1.0MPa (absolute pressure)
Accuracy class (display and contact points): 1.0/1.6 class (at 20°C)
Normal working environment impact level: 50g, 11ms (circuit breaker chamber); 30g, 7ms (other chambers)
Contact resistance: At normal temperature, minimum temperature and maximum temperature, the DC resistance value of the instrument contacts after being connected should be <10
Insulation strength: Can withstand sinusoidal wave voltage of (45~60)HZ, 2KV for 1min dielectric strength test, with leakage current <0.5mA during the test
Sealing performance: ≤1X10-8mbar.l/s

Working environment

Temperature range: -40~+80℃C (low temperature -40~60℃C)
Relative humidity: ≤95%RH
Protection level: IP65
Number of contacts: ≥3 pairs, micro switch
Oil filled: Optional

Electronic remote transmission part

Pressure measurement range: -0.1MPa~0.9MPa (gauge pressure) 0~1.0MPa (absolute pressure)
Pressure measurement accuracy: ±0.5%FS
Temperature measurement range: -40~+80°C (low temperature -60~+80°C)
Temperature measurement accuracy: ±1℃
Density range: -0.1MPa~0.9MPa (gauge pressure) 0~1.0MPa (absolute pressure)
Density accuracy: ±1%FS
Measurement consistency: Deviation between electronic and mechanical measurements ≤1.6 class
Communication method: RS485, LoRa, WAPI, 4G/5G wireless communication (optional)
Communication protocol: Compliant with Q/GDW 12020-2019 "Wireless Communication Protocol for Micro-Power Wireless Network of Power Transmission and Transformation Equipment", State Grid's power transmission and transformation IoT standard communication protocol, and "Technical Specifications for Smart Substations - Part 4: Digital Remote Metering" requirements
Electromagnetic interference resistance performance: GBIT 17626 "Electromagnetic Compatibility - Test and Measurement Techniques" Level III
Power supply: DC 24V ±10% or built-in large-capacity battery

Micro water transmitter part

Remote signal dew point measurement accuracy: ±2℃
Micro water value measurement range: 10～20000ppm
Usage density range: 0～1.0
Sensor response time: <0.5 S (20℃)
Sealing performance: ≤10-8 mbar · I/s (helium test)
Enclosure protection rating: IP65
Communication Method: RS485
Power Supply Voltage: DC24V±15%
Sensor Material: All-metal Stainless Steel

Circulation Box Section

Discharge Flow Rate: ≥3L/min
Working Environment: -40～+80℃ ≤95%RH
Electromagnetic Interference Resistance Performance: GB/T 17626《Electromagnetic Compatibility Test and Measurement Techniques》Level III
Power Supply Voltage: AC 220V±15%
Rated Power: ≤200W
Equipment Outline Dimensions: 280×260×420
Circulation Cycle: Can be set according to customer's on-site requirements

Contact Us

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400-6371-066

Technical Support

0371-56977878

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0371-56977890 0371-56977880

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