TKG-CO Industrial Carbon Monoxide Controller with Electrochemical Downward Probe and LCD Display
Authorized distribution via SRE Pte. Ltd. Supplied with genuine SRE-Control factory documentation, standards compliance, and lot traceability.
TKG-CO Industrial Carbon Monoxide (CO) Controller & BAS Ventilation Transmitter
Precision electrochemical carbon monoxide (CO) gas transmitter and BAS ventilation controller offering 0–500 ppm detection, dual dry-contact relay fan staging (5A/230VAC), 0–10V / 4–20mA 16-bit linear output, RS-485 Modbus RTU / BACnet MS/TP connectivity, and optional digital temperature & relative humidity sensing for demand-controlled garage and commercial HVAC systems.
SRE-Control Engineering & Technical Overview
The TKG-CO Series is a heavy-duty industrial carbon monoxide monitoring and ventilation control transmitter engineered for underground parking facilities, multi-story vehicle garages, loading docks, service tunnels, and commercial building automation (BAS/BMS) demand-controlled ventilation. It integrates a high-precision replaceable electrochemical CO sensing probe, dual dry-contact relay outputs for multi-stage fan control, and a 16-bit DAC linear analog output (0–10 VDC or 4–20 mA selectable) for continuous proportional damper and VFD modulation.
For comprehensive smart building integration, the TKG-CO provides native RS-485 Modbus RTU (38400 bps default) and BACnet MS/TP fieldbus communication, broadcasting real-time CO concentration, optional temperature (-10°C to +60°C), and relative humidity (0–100% RH) measurements directly to central SCADA and BMS platforms. An optional backlit LCD display delivers local at-a-glance readings and diagnostic status at the transmitter station.
Engineered with a 5-year electrochemical cell lifetime, < 1 ppm + 5% reading accuracy, ±5% stability over 900 days, and a rapid 60-second T90 response time, the TKG-CO provides maintenance-friendly plug-and-play field replaceable sensing probes. Housed in a flame-retardant PC/ABS enclosure with an external down-facing sensor probe, it prevents thermal drift and particulate fouling while ensuring continuous compliance with international indoor air quality and vehicular emission safety standards.
Key Engineering Highlights:
- High-Accuracy Electrochemical Sensing: Industrial-grade electrochemical CO cell with replaceable probe design and up to 5-year operating lifespan
- Field-Selectable Measuring Ranges: 0–100 ppm (default), 0–200 ppm, or 0–500 ppm full-scale measurement
- Superior Long-Term Stability: High measurement accuracy (< 1 ppm + 5% reading) with minimal sensor drift (±5% over 900 days)
- Dual Relay Fan-Staging Control: Up to two independent dry-contact relay outputs (5A @ 230VAC / 30VDC, resistive) for staged ventilation setpoints
- 16-Bit Precision Linear Output: 1x 0–10VDC or 4–20mA analog output for direct VFD speed modulation and PLC integration
- Native BMS Protocol Support: RS-485 Modbus RTU (38400 bps default) or BACnet MS/TP fieldbus integration
- Optional Temp & RH Detection: Integrated digital platform measuring -10°C to +60°C (±0.5°C) and 0–100% RH (±4% RH)
- Backlit Local LCD Screen: Real-time display of CO ppm or synchronized multi-parameter CO + Temperature + RH readings
- Wide Universal Low Voltage: 24 VAC / VDC power supply with energy-efficient 2.8W power consumption
- Flame-Retardant Industrial Enclosure: PC/ABS fireproof construction with 100mm mounting hole pitch and downward probe orientation
Typical Industrial Applications
- Underground Parking Lots & Multi-Story Garages: Real-time CO monitoring and demand-controlled exhaust fan staging
- Commercial & Logistics Loading Bays: Multi-stage jet fan ventilation triggered by vehicular carbon monoxide buildup
- Service Corridors & Enclosed Driveways: Automatic ventilation activation protecting facility staff and pedestrians
- Green Building BAS / BMS Optimization: Modulating exhaust fan VFDs via 0-10V/4-20mA and Modbus to slash HVAC energy consumption
- Vehicle Maintenance Tunnels & Inspection Bays: Continuous air quality surveillance with local LCD ppm readout and trip relays
- Enclosed Bus Terminals & Fleet Depots: Large-scale network deployment integrating into central building management systems
Patents & Compliance
- CE Marking - EN 61000-6-2 / EN 61000-6-4 Industrial EMC Immunity & Emission Approval
- ISO 9001:2015 Certified Manufacturing Quality Process
- Electrochemical CO Sensing Cell Replaceable Probe Architecture
- 16-Bit High-Resolution DAC Linear Signal Conversion Standard
- BACnet MS/TP & Modbus RTU Communication Standard Compliance
- Flame-Retardant PC/ABS Polymer Housing (UL94 Fireproof Rated)