The GD-5000 is a reliable gas detector that integrates a Nissha FiS FIS5000 series module and on-board electronics, offering a complete and compact solution for monitoring refrigerant gases based on the high quality/price ratio MOS Technology. Designed for safety and control applications in industrial and civil environments, the GD-5000 provides intelligent diagnostics and flexible communication via Modbus RTU and via relay.
It guarantees secure operation for 10 years without calibration and ensures simplified integration.

Why choose the GD-5000 gas detector ?

• Mandatory Safety Compliance: In systems using A2L (mildly flammable) and A3 (flammable) class of refrigerants, leak detection modules are required by safety regulations.
• Environmental Responsibility: Fluorocarbon refrigerants are potent greenhouse gases. Early leak detection helps reduce emissions and supports sustainability efforts.
• Long-lasting & Easy to Install: Designed for extended use in commercial and industrial environments, the detector is both cost-effective and user-friendly.
• High Sensitivity and Reliability: Ensures consistent detection performance under real-world operating conditions.
• Excellent value for money – ideal for cost-sensitive projects.

Refrigerant Target Gases

• (A3) R290, R600, R600A, R601
• (A2L) R32, R1234yf, R454A, R454B, R454C, R455A, R452B
• (A1) R410A, R407C, R448A, R449A, R513A

Main Features

• Smart Diagnostics: Determines the sensor’s operational status and its “remaining life”.
• Operational Reliability: Includes a relay self-test on startup, a watchdog, and self-diagnosis loops for fail-safe operation.
• Standard Communication: Modbus RTU RS485 interface for seamless integration with PLCs and HMIs.
• Fail-Safe Alarm: The alarm relay activates in case of a gas threshold being exceeded, sensor malfunction, end-of-life status, or a persistent signal error.
• Visual Diagnostics: Three dynamic LEDs (Green, Yellow, Red) provide intuitive and immediate feedback on the status of the device and sensor.
• Minimal Maintenance: Requires no routine maintenance.
• Flexible Configuration: Operating parameters are configurable and readable via Modbus, with settings saved in EEPROM.