High Sensitivity Hydrogen Gas Leak Alarm System
Our high sensitivity hydrogen gas leak alarm system delivers ultra‑low detection thresholds and instantaneous alerts for environments where hydrogen safety is non‑negotiable. Engineered for refueling stations, fuel‑cell production lines, and petro‑chemical plants, the solution integrates intrinsically safe sensors, robust communications, and compliance‑first design to protect personnel, equipment, and assets.
How It Works
The alarm system employs a catalytic bead sensor paired with an electrochemical detector, providing redundancy that eliminates false negatives. When hydrogen concentration reaches the preset alarm point (as low as 10 ppm), the sensor triggers a dual‑path alert: a local audible/visual alarm and an optional remote signal via Modbus‑TCP, Profibus, or wireless HART. Power is supplied through an intrinsically safe loop, ensuring the device remains non‑igniting even in explosive atmospheres.
All alarms are logged in an on‑board non‑volatile memory, enabling post‑event analysis and compliance reporting.
Application Scenarios
- Hydrogen refueling stations – continuous monitoring of dispenser bays and storage caverns.
- Fuel‑cell manufacturing – detection of leaks in assembly cells, purge lines, and test rigs.
- Ammonia‑based hydrogen production – safeguard reactors and separator vessels.
- Oil & gas pipelines – early warning for hydrogen‑enriched streams.
The modular design allows deployment as a standalone unit or as part of a larger distributed gas‑sensing network, fitting seamlessly into existing SCADA or DCS architectures.
Typical Specifications (customizable per order)
| Parameter | Standard Range | Optional |
|---|---|---|
| Detection Limit | 10 ppm (0.001 % vol.) | 5 ppm (optional) |
| Alarm Set‑points | 10 ppm, 30 ppm, 100 ppm | Custom step values |
| Response Time | ≤ 5 s (95 % rise) | ≤ 2 s (optional) |
| Operating Temperature | ‑20 °C to +60 °C | ‑40 °C to +80 °C (extended) |
| Power Supply | 24 V DC, intrinsically safe loop | 12 V DC or battery‑backed |
| Communications | Modbus‑TCP, Profibus DP | HART, Wireless (ISA‑100, 802.15.4) |
| Ingress Protection | IP65 | IP66 (optional) |
| Certification | IECEx, ATEX Zone 0/1 | UL‑1978, CSA‑C2 |
Industry Certifications & Safety
The system is engineered to meet or exceed the most stringent global safety standards. Each unit carries IECEx and ATEX certifications for Zone 0 and Zone 1 operations, ensuring it can be safely installed in environments with explosive hydrogen concentrations. Where required, we also provide UL‑1978 and CSA‑C2 approvals for the North American market.
All components are intrinsically safe (IS E‑Category II), and the design incorporates fail‑safe circuitry that defaults to a safe state on power loss. Documentation includes a complete safety data sheet, installation manual, and a 3‑year warranty covering sensor drift and electronic failures.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom configuration?
We accept orders as low as 10 units for bespoke sensor calibrations or communication options. Larger volumes benefit from tiered pricing and priority production slots.
Can the alarm thresholds be adjusted after installation?
Yes. Thresholds are programmable via the handheld configurator or through the connected PLC/DCS. Changes are stored in non‑volatile memory and take effect immediately.
What is the typical lead time?
Standard models ship within 15–30 days after order confirmation. Custom firmware or enclosure adaptations extend the lead time to 45 days, depending on complexity.
What warranty and support options are available?
All units come with a three‑year limited warranty covering sensor drift, electronic failure, and workmanship. Optional extended support packages include on‑site calibration, firmware updates, and 24/7 technical hotline.
Ready to secure your hydrogen handling facilities with the most reliable detection technology on the market? Contact our engineering team today for a detailed quotation, sample unit, or technical discussion.