GX-CO Industrial Carbon Monoxide Monitor & Controller with Dual Display and Red Alarm Backlight
Authorized distribution via SRE Pte. Ltd. Supplied with genuine SRE-Control factory documentation, standards compliance, and lot traceability.
GX-CO Industrial Carbon Monoxide (CO) Monitor & Staged Ventilation Controller
Industrial-grade CO gas monitor and demand-controlled ventilation (DCV) controller featuring a replaceable Figaro electrochemical sensor (0–500 ppm), dual real-time/1-hour moving-average display, red-backlight visual alarm, 0–10 VDC / 4–20 mA analog output, up to 2× relay dry contacts (5A) for staged fan control, and RS-485 Modbus RTU / BACnet MS/TP connectivity.
SRE-Control Engineering & Technical Overview
The GX-CO series is a wall-mount industrial carbon monoxide monitor and ventilation controller engineered for underground parking facilities, multi-level garages, enclosed loading docks, and commercial building management systems (BMS/BAS). Powered by a world-class Japanese Figaro electrochemical CO sensor in a field-replaceable module architecture, it delivers high measurement accuracy (< 1 ppm ± 3%) with long-term stability (± 5% over 900 operating days) and a > 5-year sensor lifespan.
A key engineering distinction of the GX-CO series is its dual-mode display capability, showing both immediate real-time CO concentration (ppm) and 1-hour moving average concentration (ppm). This moving average tracking provides direct compliance verification for international occupational safety standards (such as OSHA, WHO, and ASHRAE 62.1 TWA criteria).
When CO concentration exceeds preset thresholds, the monitor triggers an unmistakable red-backlight LCD visual alarm and an integrated audible buzzer (with manual mute capability). Up to two independent 5A relay dry contacts (230VAC / 30VDC resistive load) enable direct staged switching of single-speed or two-speed exhaust fans, while a 16-bit linear analog output (0–10 VDC or 4–20 mA) and RS-485 Modbus RTU / BACnet MS/TP fieldbus protocols provide continuous modulation for central DDC controllers and energy-efficient demand-controlled ventilation (DCV) strategies.
Key Engineering Highlights:
- Replaceable Japanese Figaro Sensor: Premium electrochemical CO cell with field-replaceable module architecture and > 5-year operating life
- Dual CO Display Modes: Simultaneous real-time ppm value and 1-hour moving average for OSHA / WHO / ASHRAE exposure compliance
- High Precision & Stability: High accuracy (< 1 ppm ± 3%) with field-proven stability (± 5% over 900 days) across 0–500 ppm spans
- Red Backlight Alarm: High-contrast LCD automatically illuminates in vibrant red when CO exceeds safety setpoints
- Audible Alarm Buzzer: Onboard audible alert with manual temporary mute function for operational flexibility
- Dual Fan Staging Relays: Up to 2× independent 5A relay dry contacts (230VAC/30VDC) for single-speed, two-speed, or dual CO + temperature control
- 16-Bit Proportional Analog Output: 1× 0–10 VDC or 4–20 mA linear output for BMS DDC panels and VFD damper modulation
- RS-485 Modbus RTU / BACnet MS/TP: Industrial fieldbus connectivity (9600 bps default, 15 kV ESD protection) for automated BAS networks
- Zero-Point Field Calibration: Convenient combination-button zero-point calibration without requiring factory return
- Optional Temp & Humidity Detection: High-precision temperature (−20 to +60 °C) and humidity (0–95% RH) sensing channels
- Flame-Retardant Industrial Enclosure: Compact 150 × 90 × 42 mm wall-mount PC/ABS case (IP30) with 24 VAC/VDC power supply
Typical Industrial Applications
- Underground Parking Lots & Multi-Level Garages: Real-time CO monitoring and demand-controlled exhaust fan staging
- Commercial Building BMS Integration: Direct Modbus RTU / BACnet MS/TP connection to central DDC panels
- OSHA / WHO / ASHRAE 62.1 Exposure Compliance: 1-hour moving average tracking protecting workers in enclosed bays
- Loading Docks & Freight Logistics Hubs: Automated jet fan activation and red-backlight visual alarm tripping
- Vehicle Inspection & Fleet Maintenance Tunnels: Real-time occupant safety surveillance with manual-mute buzzer
- Public Venues & Enclosed Arenas: Demand-controlled ventilation to prevent CO accumulation while cutting fan energy costs
Patents & Compliance
- CE Marking - EN 61000-6-2 / EN 61000-6-4 Industrial EMC Immunity & Emission Approval
- ISO 9001:2015 Quality Management Certified Manufacturing Standard
- OSHA / WHO / ASHRAE 62.1 1-Hour Time-Weighted Average (TWA) Monitoring Compliance
- Figaro (Japan) Electrochemical Sensor - OEM Certified Sensing Element
- 15 kV Anti-Static Surge & ESD Protection on RS-485 Communication Ports
- Flame-Retardant PC/ABS Polymer Housing (UL94 Fireproof Rated)