Carbon monoxide carbon monoxide sensor Microx CO

COelectrochemicalfor process measurement

Overview
The Microx CO is a compact carbon monoxide analyzer equipped with an electrochemical sensor for accurate measurement of low CO concentrations. It is designed for industrial use and for monitoring oxygen generators and compressed air systems.

Applications

• Validation of medical oxygen generators
• Purity control in oxygen generators
• Compressed air systems
• Industrial gas processes

Key features

• Measurement range: 0 to 50 ppm CO
• Electrochemical sensor with precision and stability
• Remote sensor option for flexible installation
• Analog output: 4–20 mA
• Digital interface: RS232
• Three configurable alarm relays
• LCD display with 4-button interface
• Compact enclosure for DIN-rail mounting
• Power supply: 24 V DC (table indicates 24 VAC for some versions)
• Easy integration into existing systems

Technical data (excerpt)
Measurement technology: Electrochemical (EC)
Measurement range: 0 to 50 ppm CO
Accuracy: ± 2 ppmV CO
Output resolution (4...20 mA): ± 0.5 ppmV CO
Detection limit (LDL): 0.5 ppmV CO
Optimal sample flow: 150 to 250 ml/min (0.3 to 0.5 SCFH)
Pressure range: Atmospheric ± 10 % or 0.02 mBar
Response time (T90): < 25 seconds
Operating temperature range: -20 °C to +50 °C
Sensor lifetime: Up to 36 months in air
Humidity: 15–90 % RH, non-condensing
Process connection: 1/8" NPT female, flow-through
Sensor housing material: Aluminium
Sensor electrical connector: Plug-in at sensor
Display: LCD with 4-button interface
Analog output: 4...20 mA
Digital communication: RS232
Alarm relays: 3 configurable relays
Power (table): 24 VAC
Mounting: DIN rail (model 401)
Ingress protection: IP20
Module dimensions: 86 mm (H) x 69 mm (W) x 58 mm (D)

Analysis and integration
The Microx CO analyzer is intended for continuous monitoring of low carbon monoxide concentrations in gas streams. The electrochemical sensor technology provides precise and stable readings at low levels. Interfaces such as 4–20 mA and RS232 support connection to supervisory control systems. The remote sensor option enables installation close to the process to reduce response time.

Technical specifications

• Technology: Electrochemical (EC)
• Measurement range: 0–50 ppm CO
• Accuracy: ± 2 ppmV CO
• Resolution (4–20 mA): ± 0.5 ppmV CO
• LDL: 0.5 ppmV CO
• Sample flow: 150–250 ml/min
• Response time (T90): < 25 s
• Operating temperature: -20 °C to +50 °C
• Humidity: 15–90 % RH, non-condensing
• Outputs: 4–20 mA, RS232
• Alarm relays: 3 configurable relays
• Process connection: 1/8" NPT female (flow-through)
• Sensor housing: Aluminium
• Mounting: DIN rail (model 401)
• Ingress protection: IP20
• Dimensions: 86 x 69 x 58 mm (H x W x D)
• Power: information present for 24 V DC and 24 VAC (depending on version)