NA1100P Wireless Passive SF6 Density Sensor
Real-time Data Transmission • High Measurement Accuracy
Communication: RS-485 wired output
Pressure Measurement Range: (-0.1~0.9) MPa
Electronic Density Error: ≤±0.5% F.S
Temperature Measurement Range: (-40~+70) °C
Temperature Error: ±1 °C
Density Accuracy: Class 1.0/1.6 @20°C, Class 1.6/2.5 @-40°C~+60°C (optional)
Product Introduction
The NA1100P wireless passive SF6 density sensor is suitable for high-precision monitoring of the density, pressure, and temperature of SF6 gas in the gas chamber of SF6 high-voltage electrical equipment. The sensor uses a high-precision pressure acquisition unit and temperature measurement unit, and a temperature compensation curve is made in high and low temperature environments, enabling it to have excellent measurement accuracy. It features high stability, high reliability, outstanding anti-interference ability, and a high protection level. Various monitoring data are transmitted in real-time, and the background system draws trend change graphs. Alarms are issued in a timely manner when abnormalities are detected to ensure the safe operation of SF6 electrical equipment, meeting the construction requirements of smart substations of the State Grid and digital substations of the China Southern Power Grid.
Main Features
1. This SF6 density sensor is available in two forms: active wired and passive wireless; it can dynamically and real-timely monitor the density, pressure, and temperature indicators of SF₆ in the gas chamber.
2. The NA1100P wireless passive SF6 density sensor can upload monitoring data to the monitoring center in real-time; the background system automatically draws trend change graphs.
3. This SF6 density sensor has strong electromagnetic interference resistance; it has wide temperature range compensation.
4. It meets the State Grid standard “Technical Specification for Smart Substations – Part 4: Digital Meters”.
5. It meets the China Southern Power Grid standard “Technical Requirements for Digital Remote Transmission Meters in Digital Substations”.
Product Parameters
|
Parameter |
Value |
|
Model |
NA1100P |
|
Communication |
RS-485 wired output |
|
Pressure Range |
(-0.1~0.9) MPa |
|
Density Error |
≤±0.5% F.S |
|
Temperature Range |
(-40~+70)°C |
|
Temperature Error |
±1°C |
|
Density Accuracy |
Class 1.0/1.6 @20°C, Class 1.6/2.5 @-40°C~+60°C (optional) |
|
Sealing Performance |
1×10⁻⁹ Pa·m³/s (helium leak test) |
|
Interface Size |
M20×1.5, G1/2 (customizable) |
|
Insulation Performance |
Insulation Resistance: ≥100 MΩ Dielectric Strength: 2 kV, 1 min, no breakdown |
|
Enclosure Protection |
IP65 |
|
Gas Types |
SF₆, SF₆/N₂, SF₆/CF₄, etc. |
