SF6/N2 Gas Mixture Analyzer with Chilled Mirror Dew Point Technology and High Precision Gas Composition Testing in Modular Design

Place of Origin SHANGHAI
Brand Name KSTONE
Certification ISO-9000
Model Number KS30-J9
Document KS30-J9-SF6-N2-Gas-Mixture-...or.pdf
Minimum Order Quantity 1
Packaging Details Wooden box/ Carton box
Delivery Time 15 work days
Payment Terms T/T
Supply Ability 1000 per year
Product Details
SF₆ Accuracy ±0.05% (90–100%) N₂ Accuracy ±0.5% (90–100%)
O₂ Accuracy ±0.05% (90–100%) Dew Point Accuracy ±0.1℃
SO₂ Accuracy ≤±0.3 μL/L (≤10 μL/L) H₂S Accuracy ≤±0.3 μL/L (≤10 μL/L)
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Product Description
SF6/N2 Gas Mixture Analyzer KS30-J9 | Chilled Mirror Dew Point & Gas Composition Testing

The KS30-J9 SF6/N2 Gas Mixture Analyzer is a high-precision analytical instrument based on chilled mirror dew point technology and modular gas analysis design. It is specifically developed for modern gas-insulated power systems using SF6/N2 mixed gases, providing comprehensive measurement of gas composition and insulation condition.

The system is capable of measuring:

  • SF6 concentration
  • N2 concentration
  • Dew point (chilled mirror principle)
  • SF6 decomposition products (SO₂, H₂S, CO)

With high stability and laboratory-grade accuracy, it is widely used in GIS substations, high-voltage switchgear, and gas quality monitoring applications.

KS30-J9 SF6/N2 Gas Mixture Analyzer
Key Features
Chilled Mirror Dew Point Technology

Direct optical condensation measurement ensures ultra-high accuracy and long-term stability without sensor drift.

Multi-Gas Comprehensive Analysis

Simultaneous measurement of SF6, N2, moisture, and decomposition gases in one system.

High Precision Gas Composition Testing

SF6 accuracy up to ±0.05% and N2 accuracy up to ±0.03%.

Decomposition Gas Detection

Monitors SO₂, H₂S, and CO to evaluate insulation degradation and fault conditions.

Modular System Design

Flexible structure for maintenance, calibration, and future expansion.

High Stability in Field Conditions

Designed for outdoor substation environments with temperature compensation and anti-interference capability.

Why Chilled Mirror Technology?

Unlike traditional capacitive humidity sensors, chilled mirror technology measures dew point temperature by directly detecting condensation on a cooled mirror surface.

This ensures:

  • No sensor aging or drift
  • True physical measurement
  • Extremely high repeatability
  • Long-term calibration stability

It is widely regarded as the most accurate method for dew point measurement in high-end gas analysis systems.

Technical Specifications
Gas Composition Analysis
Parameter Range Accuracy Repeatability
SF₆ 0-100% ±0.05% (90-100%) ≤±0.03%
N₂ 0-100% ±0.5% (90-100%) ≤±0.03%
O₂ 0-1% ±0.05% (0-1%) ≤±0.03%
Dew Point Measurement
Parameter Specification
Principle Chilled Mirror
Range -62℃ to Ambient Temperature
Accuracy ±0.1℃
Repeatability ≤±0.1℃
SO₂ Measurement
Parameter Specification
Range 0-100 μL/L
Extended Range 0-2000 μL/L
Accuracy ≤±0.3 μL/L (≤10 μL/L)
Accuracy ≤±3% (>10 μL/L)
Stability ≤±0.2 μL/L
Repeatability ≤±0.1 μL/L (≤10 μL/L)
Repeatability ≤±1% (>10 μL/L)
H₂S Measurement
Parameter Specification
Range 0-100 μL/L
Accuracy ≤±0.3 μL/L (≤10 μL/L)
Accuracy ≤±3% (>10 μL/L)
Stability ≤±0.2 μL/L
Repeatability ≤±0.1 μL/L (≤10 μL/L)
Repeatability ≤±1% (>10 μL/L)
CO Measurement
Parameter Specification
Range 0-1000 μL/L
Accuracy ≤±2 μL/L (≤50 μL/L)
Accuracy ≤±4% (>50 μL/L)
Stability ≤±1 μL/L
Repeatability ≤±1 μL/L (≤50 μL/L)
Repeatability ≤±2% (>50 μL/L)
Environmental Stability
Parameter Value
Temperature Variation -10℃ to +45℃
SF₆ Drift ≤±0.1%
SO₂ Drift ≤±0.2 μL/L
H₂S Drift ≤±0.2 μL/L
CO Drift ≤±1 μL/L
Applications

The KS30-J9 is widely used in:

  • SF6/N2 gas insulated switchgear (GIS)
  • Eco-efficient high-voltage substations
  • Power transmission systems
  • Gas-insulated circuit breakers
  • Mixed gas quality monitoring
  • Electrical utility maintenance
  • Gas insulation research laboratories
Why Choose KS30-J9?
  • One System for Full Gas Analysis: Combines gas composition + moisture + decomposition analysis in a single platform.
  • Designed for SF6/N2 Future Grid Technology: Supports modern eco-friendly gas insulation systems replacing pure SF6.
  • High-End Measurement Accuracy: Laboratory-grade precision suitable for utility-grade diagnostics.
  • Field-Ready Design: Stable performance in harsh outdoor substation environments.
Chilled Mirror vs Traditional Sensor
Feature Chilled Mirror Capacitive Sensor
Accuracy High Medium
Drift None Possible
Calibration Stability Excellent Limited
Long-Term Reliability High Medium
Frequently Asked Questions
What is an SF6/N2 gas mixture analyzer?

It is a device used to measure the composition and insulation quality of SF6 and N2 mixed gases in electrical equipment.

Why are SF6 and N2 measured together?

Because modern eco-efficient GIS systems often use SF6/N2 mixtures to reduce environmental impact while maintaining insulation performance.

What is chilled mirror dew point measurement?

It is a method that determines dew point by directly observing condensation on a cooled mirror surface.

Can the KS30-J9 measure decomposition gases?

Yes, it measures SO₂, H₂S, and CO.

Where is this analyzer used?

It is used in GIS substations, high-voltage switchgear, and power transmission systems.

Why Work With Us
  • Professional gas detection equipment manufacturer
  • Extensive HVAC and SF6 application experience
  • OEM & customized solution support
  • Fast technical response
  • Stable industrial-grade product quality
  • Global B2B export experience
SF6/N2 Gas Analysis for Next-Generation GIS Systems

The KS30-J9 is designed for advanced gas-insulated systems using SF6/N2 mixtures. It provides a comprehensive alternative solution for utilities requiring high-precision gas composition and insulation monitoring.

Request a Quote for SF6 Gas Mixture Analyzer Equipment

Send us your technical requirements and application details. Our engineering team will provide a suitable solution within 24 hours.

Email: info@kstone-sf6.com