DGA-200 — The Connected Hydrogen + Multi-Gas Monitor
Built for remote and unmanned substations. Combines Pd alloy thin-film H₂ sensing (1-2 ppm) with optional IR-PAS multi-gas module (CO, CH₄, C₂H₂, C₂H₄). LoRa wireless, IEC 61850, MODBUS — the most connected hydrogen sensor in the industry.
Pd Alloy Thin-Film H₂ Sensor + Optional IR-PAS Multi-Gas Module + LoRa + IEC 61850
Key Features
Pd Alloy Thin-Film H₂ Sensor
1-2 ppm detection limit. Direct oil immersion — no membrane, no oil-gas separation. Patented PdOₓ anti-CO barrier ensures 10+ year stability with zero cross-gas interference.
Optional IR-PAS Multi-Gas Module
Add CO, CH₄, C₂H₂, and C₂H₄ monitoring to the H₂ base. Upgrade from hydrogen-only early warning to comprehensive fault diagnosis without replacing the monitor.
LoRa Wireless — 10+ km Range
Integrated LoRa module eliminates communication infrastructure costs. Ideal for remote substations, offshore platforms, and sites without fiber/cellular coverage.
IEC 61850 Edition 2
Native IEC 61850 station bus integration for digital substations. MMS reporting, GOOSE messaging, and IED configuration via SCL files.
MODBUS RTU/TCP + 4-20 mA
Universal SCADA/DCS compatibility. MODBUS for data-rich integration. 4-20 mA analog outputs for simple alarm relay integration.
IP66 Rugged Enclosure
Outdoor rated for all climate zones. Stainless steel hardware. -40°C to +55°C operating range. Designed for 15+ year outdoor service life with zero maintenance.
Technical Specifications
Hydrogen Sensing
| Sensor Type | Pd Alloy Thin-Film Resistor (MEMS-fabricated) |
| Detection Range | 1-5,000 ppm H₂ |
| Detection Limit | 1-2 ppm |
| Response Time | < 5 minutes |
| Sensor Life | 10+ years (no recalibration required) |
| Cross-Interference | Zero (PdOₓ barrier blocks CO, hydrocarbons) |
Optional Multi-Gas Module (IR-PAS)
| Gases Measured | CO, CH₄, C₂H₂, C₂H₄ (+ H₂ from thin-film sensor) |
| Detection Limit C₂H₂ | 0.5 ppm |
| Measurement Interval | 60 minutes (all gases) |
| Technology | Infrared Photoacoustic Spectroscopy (IR-PAS) |
Communication & Power
| Protocols | MODBUS RTU/TCP, IEC 61850 Ed.2, 4-20 mA, LoRa |
| LoRa Range | 10+ km (line-of-sight), 2-5 km (urban/forested) |
| LoRa Frequency | 868 MHz (EU) / 915 MHz (NA) / 433 MHz (Asia) |
| Power Supply | 24V DC (standard) / 110-240V AC (with adapter) |
| Power Consumption | < 5W (H₂ only) / < 15W (with multi-gas module) |
Environmental & Physical
| Operating Temperature | -40°C to +55°C |
| Enclosure Rating | IP66 |
| Installation | Direct valve mount on energized transformer, < 1 hour |
| Weight | 4.2 kg (sensor head) + 2.8 kg (electronics module) |
| Warranty | 5 years (comprehensive, all components) |
Ideal Applications
Offshore Wind
LoRa eliminates cable costs. Zero maintenance for unmanned platforms.
Remote Substations
10+ km wireless. No cellular infrastructure needed.
Digital Substations
Native IEC 61850. Seamless station bus integration.
SCADA Integration
MODBUS RTU/TCP + 4-20 mA for universal compatibility.
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