![NECTOGROUP | Join Innovation [EN] Logo](https://www.nectogroup.com/en/wp-content/uploads/2018/09/logo_nectogroup.png){kind=logo}
![NECTOGROUP | Join Innovation [EN] Logo](https://www.nectogroup.com/en/wp-content/uploads/2018/09/logo_nectogroup_sticky.png){kind=logo}
R290 GAS DETECTION
Discover the New RELAY Sensor!
The new ZRT512J-R290 – RELAY version is the smart sensor engineered not only to detect, but to enable an automatic response.
Engineered for HVAC, refrigeration, and industrial safety applications, it automatically activates fans, alarms, or closes safety valves when the gas concentration exceeds the safety level — all without the need for an external controller.
Infrared Sensors – Refrigerant Gas Detection
These are smart sensors specifically engineered to detect the refrigerant gas R290 (propane). They use the NDIR (Non-Dispersive Infrared) principle, which ensures high selectivity for the target gas and does not rely on the presence of oxygen — making them ideal even in enclosed spaces or low-oxygen environments.
New RELAY Version
Fast Detection. Automatic Alerts. Continuous Safety.
The new RELAY version is engineered for autonomous operation: it doesn’t just detect and notify — it takes action by directly activating devices like alarms or fans, making it the ideal choice for systems that require an immediate response.
Why choose the RELAY version:
- Integrated relay output for instant activation when the safety level is exceeded
- Excellent signal linearity, high stability, and long operating life
- Resistant to humidity and water vapor, and completely non-toxic
- Fully compatible as a direct replacement for catalytic combustion sensors
- No external control system required
- Support 24VAC
- The ideal solution for applications that require fast, automatic responses.
Engineered for Specific Applications
The ZRT510 (REGULAR) and ZRT512J-R290 (RELAY) infrared sensors have been developed to meet the specific needs of refrigerant gas detection in well-defined applications, where reliable performance, fast response, and easy integration are essential:
- HVAC systems
- Heat pumps
- Industrial refrigeration systems
- Gas detection and safety monitoring in industrial processes
ZRT510 Sensor – REGULAR Version
Smart Communication: engineered to interface efficiently with automated systems, the REGULAR version transmits data and signals via RS485 for centralized control.
Why choose the REGULAR version:
- Modbus communication over RS485, compatible with PLCs and microcontrollers
- Full remote management and customization
- Resistant to humidity and water vapor, completely non-toxic.
Features of Refrigerant Gas Detection Sensors
| Sensitivity and Response | High resolution (0.1% LFL), fast detection: alarm at 7% LFL in under 10 seconds. |
| Self-Heating Function | Prevents condensation and steam interference; non-toxic sensor. |
| Gas Compatibility | Standard: R290 – Optional: R32, R454B (on request). |
| Environmental Reliability | Stable accuracy from -20°C to +60°C and up to 95% relative humidity. Accuracy ±2.5% LFL. |
| Operating Temperature | -40 to 85 ℃ |
| Key Features | High sensitivity, high resolution, rapid response. |
| Operational Lifetime | Over 15 years of maintenance-free operation. |
| REGULAR Version | Linear output and RS485 digital interface (Modbus) via XHD-4 connector. Ideal for integration into control systems. |
| RELAY Version | Relay output for direct activation of external devices (alarms, fans, valves) without an external control system. |
| Power Supply | Compatible with 24V AC power input. |