GD-6 | Macurco Combustible Gas Detector with Dual Relays and 4–20 mA Output

Macurco · Sensors & Instrumentation

Description  The Macurco GD-6 is a low-voltage, dual-relay combustible gas detector and ventilation controller for continuous monitoring of hazardous gas levels. It uses a microcomputer-based system with a pellistor sensor to detect methane, propane, or hydrogen, providing relays and 4–20 mA outputs for control and integration.     Technical Specifications  Condition New/Never Used Surplus Brand Macurco Category Flame Safety Products Part Number GD-6 Subcategory Gas Detector Target Gases Methane (CH₄), Propane (C₃H₈), Hydrogen (H₂) Detection Range 0–50% LEL Sensor Type Pellistor, long-life (5+ years) Sensor Response < 5 seconds Outputs 5A SPDT fan relay, 0.5A SPST alarm relay, 4–20 mA Communication Options Modbus RTU RS-485 (with adapter), BACnet MSTP (with adapter) Alarm Levels Configurable at 5–25% LEL Fan Relay Settings Delay: 0–10 min; Minimum Run Time: 0–15 min; Latching or non-latching Indicators Green power LED, 3-character LED display, buzzer (75 dB at 1') Power Supply 12–24 VAC or 12–48 VDC, max 3 W Current Consumption 23 mA standby, 50 mA (fan relay), 75 mA alarm Operating Temp 0°F to 125°F (–18°C to 52°C) Humidity Range 10–90% RH non-condensing Enclosure Polycarbonate, IP42 rating Mounting Standard 4x4 electrical box Dimensions 4.5 x 4 x 2.1 in (11.4 x 10.2 x 5.4 cm) Certifications ETL Listed to UL 2075, ULC 588, CE, RoHS, REACH Weight 1 lb (0.45 kg)     Information About GD-6 The GD-6 is a versatile combustible gas detector from Macurco, designed for industrial and commercial applications such as boiler rooms, warehouses, landfills, and battery charging stations. It can detect and display concentrations from 0–50% of the lower explosive limit (LEL), with relay outputs that can trigger exhaust fans, shut down supply lines, or activate alarms. The device mounts directly on a standard 4x4 electrical box, simplifying installation, and includes options for Modbus RS-485 and BACnet communication. With long-life sensors, configurable alarm levels, and ETL certifications, the GD-6 ensures both safety and compliance in demanding environments. Key Features: Multi-Gas Detection: Selectable target gases include Methane (CH₄), Propane (C₃H₈), and Hydrogen (H₂). Dual Relays: Equipped with a 5A SPDT fan relay and a 0.5A alarm relay for control and notification. 4–20 mA Output: Provides continuous analog monitoring for integration with control systems. Configurable Settings: Selectable fan delay, alarm levels, latching modes, and buzzer operation. Fast Response: Sensor response time is less than 5 seconds for quick hazard detection. User-Friendly Interface: LED display, buzzer, and status indicators simplify testing and operation. Flexible Power Input: Operates from 12–24 VAC or 12–48 VDC, with optional Modbus or BACnet adapters. Certified Safety: ETL listed to UL 2075 and ULC 588, with CE compliance for international use. The GD-6 delivers the accuracy and flexibility required for continuous combustible gas monitoring in industrial safety systems.

Brand: Macurco · Category: Sensors & Instrumentation

Key features

• Multi-Gas Detection: Selectable target gases include Methane (CH₄), Propane (C₃H₈), and Hydrogen (H₂).
• Dual Relays: Equipped with a 5A SPDT fan relay and a 0.5A alarm relay for control and notification.
• 4–20 mA Output: Provides continuous analog monitoring for integration with control systems.
• Configurable Settings: Selectable fan delay, alarm levels, latching modes, and buzzer operation.
• Fast Response: Sensor response time is less than 5 seconds for quick hazard detection.
• User-Friendly Interface: LED display, buzzer, and status indicators simplify testing and operation.
• Flexible Power Input: Operates from 12–24 VAC or 12–48 VDC, with optional Modbus or BACnet adapters.
• Certified Safety: ETL listed to UL 2075 and ULC 588, with CE compliance for international use.

Specifications

Contact Safety Shops for pricing, delivery and project support in the UAE.