SF6 Multi-Parameter Gas
Analyzer
The ZWZH-IV is an advanced SF6 multi-parameter gas analyzer that integrates dew point, purity, and decomposition testing into a single field-ready instrument.
It significantly minimizes gas consumption while accelerating equipment health assessments for power grid maintenance.
Product Overview
The ZWZH-IV SF6 Multi-Parameter Gas Analyzer is intelligently designed to consolidate SF6 dew point, SF6 purity, and SF6 decomposition product measurements into one unified, portable tester.
By replacing the need for three separate conventional instruments, it drastically minimizes the volume of gas extracted during testing.
Equipped with long-life sensor probes and a highly sensitive touch-screen interface, it serves as an ideal diagnostic tool for power companies, testing agencies, and electrical engineers managing high-voltage SF6-insulated switchgear.
Functions and Value:
1. Comprehensive SF6 Diagnostics: Precisely measures dew point (-80°C to +20°C), gas purity (0–100%), and multiple decomposition byproducts (H2S, SO2, HF, CO) simultaneously, streamlining field operations and expediting maintenance decisions.
2. Minimized Gas Consumption: The 3-in-1 integrated testing design completes all necessary technical assessments using a single gas sample, significantly reducing valuable SF6 gas loss and lowering operational costs.
3. Intelligent Visual Interface: Features a large LCD touch screen with intuitive menus, empowering field technicians to easily view real-time numerical data, graphical measurement curves, and automatically diagnosed stability statuses.
4. Reliable Sensor Technology: Incorporates robust, long-life probe components configured with automated preheating sequences, ensuring maximum measurement accuracy and reducing the necessity for frequent sensor recalibration.
5. Efficient Data Traceability: Provides high-capacity historical data storage with immediate on-site printing capabilities, ensuring rigorous data management and compliance for laboratory technicians and procurement documentation.
Technical Details
| Parameter | Specification |
|---|---|
| Model | ZWZH-IV |
| Test Parameters | Dew Point, Purity, Decomposition Products |
| Dew Point Range | -80°C to +20°C |
| SF6 Purity Range | 0–100% (Weight Ratio) |
| SF6 Purity Accuracy | ±0.5% |
| H2S / SO2 Range | 0–100 μL/L / 0–2000 μL/L |
| CO / HF Range | 0–500 μL/L / 0–10 μL/L |
| Testing Flow Rate | 0.2–0.6 L/min |
| Measurement Time | <2 minutes (Purity) |
Model Selection Guide
| Item NO. | Max Current | Measuring Range | Main Features | Recommended Application |
|---|---|---|---|---|
| GDZR-10A | 10A | 100μΩ - 20KΩ | Portable, built-in discharge alarm | Small to medium distribution transformers |
| GDZR-20A | 20A | 10μΩ - 10KΩ | High-speed testing, heat dissipation | Medium-sized power transformers |
| GDZR-40A | 40A | 1μΩ - 2KΩ | Dual-channel measurement, high current | Large-scale power transformers |
| GDZR-40A | Three-Phase 10A | 100μΩ - 10KΩ | Three-phase simultaneous measurement | Yn-type transformers, time-saving |
Recent Work
Parts List
| Item NO. | Max Current | Measuring Range | Main Features | Recommended Application |
|---|---|---|---|---|
| GDZR-10A | 10A | 100μΩ - 20KΩ | Portable, built-in discharge alarm | Small to medium distribution transformers |
| GDZR-20A | 20A | 10μΩ - 10KΩ | High-speed testing, heat dissipation | Medium-sized power transformers |
| GDZR-40A | 40A | 1μΩ - 2KΩ | Dual-channel measurement, high current | Large-scale power transformers |
| GDZR-40A | Three-Phase 10A | 100μΩ - 10KΩ | Three-phase simultaneous measurement | Yn-type transformers, time-saving |
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Certificate
Frequently Asked Questions
Contact our engineers for technical support and application guidance.
The instrument operates as a 3-in-1 diagnostic tool, simultaneously measuring SF6 dew point, SF6 purity, and the concentrations of critical SF6 decomposition products including H2S, SO2, HF, and CO.
No, its multi-parameter integration allows it to complete all three core tests utilizing the same gas sample at a low flow rate of 0.2 to 0.6 L/min, greatly reducing overall gas consumption.
Yes, the analyzer utilizes advanced long-life probe components designed for resilience in challenging on-site environments, delivering highly accurate and stable readings with minimal drift.
The analyzer features an integrated LCD touch screen equipped with high-capacity historical data storage, allowing users to analyze real-time curves, browse past records, and generate immediate printouts directly on-site.
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