H2-Alarm device
Compatible with the H2-CNI 4-20mA-I and H2-meTCD 4-20mA or H2-CNI 0-10V-I and H2-meTCD 0-10V

The H₂ alarm module reliably monitors multiple hydrogen sensors and provides clear, configurable alarm signaling to ensure early detection and operational safety.
Key Features & Benefits
- Monitors up to four hydrogen sensors (H2-CNI 0–10V-I, H2-meTCD 0–10V) for reliable multi-point safety monitoring
- Independent power supply per sensor ensures stable operation and high system reliability
- Three-color 24 V LED warning light control enables clear visual signaling of normal operation, pre-alarm, and main alarm states
- Individually configurable alarm thresholds allow application-specific safety settings
- Tri-color status LEDs per sensor provide immediate visual feedback on sensor and system status
- Potential-free alarm outputs via D-Sub 15 enable easy integration with external control and safety systems
- Automatic power redundancy with main and auxiliary 24 V supplies ensures uninterrupted operation in case of power failure
- LED-indicated power switchover with potential-free output enhances system transparency and fault diagnostics
- Visual monitoring of sensor heating currents supports quick functional checks of H2-CNI sensors
- Robust anodized aluminum housing designed for long-term industrial use
- DIN rail mounting (DIN EN 60715 TH 35) allows fast and secure installation in control cabinets
- Front-mounted connectors and illuminated on/off switch simplify installation, wiring, and operation
- Micro-USB interface with SensorControl software enables intuitive configuration and diagnostics
- Expandable via optional relay card for extended alarm and control functionality


