Oil analyzer GLR-DGM601

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Overview
The GLR-DGM601 and GLR-DGM701 are on-line dissolved gas analysis (DGA) systems for transformer oil. They use semiconductor lasers and laser photoacoustic spectroscopy to perform continuous, multi-component gas monitoring without carrier gas, enabling real-time detection of fault gases and early diagnosis of transformer conditions.

Key features

• Laser photoacoustic spectroscopy with semiconductor lasers for selective gas detection
• Multi-component (GLR-DGM601) and low-component (GLR-DGM701) configurations
• No carrier gas required — maintenance-free sampling
• Continuous on-line monitoring with real-time outputs
• Valve-block pipeline connection and support for live-line installation
• Wide operating range: -40℃ to +55℃; 5%–95% RH; protection rating IP55

Typical specifications — GLR-DGM601

• Function: Multi-component oil and gas online monitoring
• Monitored gases (examples / optional): H2, CO2, CO, CH4, C2H6, C2H4, C2H2, O2, N2
• MDL examples: H2 1 μL/L; CO2 25 μL/L; CO 25 μL/L; CH4 0.5 μL/L; C2H6 0.5 μL/L; C2H4 0.5 μL/L; C2H2 0.1 μL/L; O2 1000 μL/L; N2 2000 μL/L
• Measurement error: typically ±(MDL) or ±30% depending on gas and concentration
• Power supply: AC 220V ±15%; Rated/maximum power: up to 1.2 kW
• Dimensions: 650 mm (W) × 694 mm (D) × 1090 mm (H); Weight: 186 kg

Typical specifications — GLR-DGM701

• Function: Low-component oil and gas online monitoring
• Monitored gases (optional): H2, CO, C2H4, C2H2 (configurable)
• MDL examples: H2 1 μL/L; CO 25 μL/L; C2H4 0.5 μL/L; C2H2 0.1 μL/L
• Measurement error: typically ±(MDL) or ±30%
• Power supply: AC 220V ±15%; Rated/maximum power: up to 1.2 kW
• Dimensions: 425 mm (W) × 205 mm (D) × 645 mm (H); Weight: 50 kg

Installation and maintenance

• Live-line installation supported; valve block for pipeline connection
• Constant pressure and temperature vacuum degassing ensures stable representative sampling
• No carrier gas reduces routine maintenance and eliminates carrier replacement
• Recommend periodic verification and calibration according to site procedures

Applications

• Continuous DGA for power and distribution transformers
• Substation monitoring and early fault detection
• Transformer condition assessment in utilities and industrial plants

Ordering and options

• Available models: GLR-DGM601 (multi-component), GLR-DGM701 (low-component)
• Optional gas configurations and measurement ranges on request
• Contact sales for site integration, calibration services and spare parts