Details

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The E+E Elektronik EE800-M11HV1A6 is a high-precision room sensor designed to simultaneously measure carbon dioxide (CO₂), temperature (T), and relative humidity (RH). This model features a 4–20 mA analog output, making it suitable for integration with industrial control systems and building automation setups.

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📊 Key Specifications

• CO₂ Measurement:

  • Range: 0 to 2000 ppm / 0 to 5000 ppm

  • Accuracy at 25°C (77°F):

    • ±(50 ppm + 2% of reading) for 0–2000 ppm

    • ±(50 ppm + 3% of reading) for 0–5000 ppm

  • Response Time (τ63): Approximately 110 seconds

  • Temperature Dependency: ±(1 + CO₂ concentration [ppm] / 1000) ppm/°C

  • Calibration Interval:

    5 years

• Temperature Measurement:

  • Range: -20°C to +60°C (-4°F to +140°F)

  • Accuracy at 20°C (68°F):

    • ±0.3°C (±0.54°F) for voltage output

    • ±0.7°C (±1.26°F) for current output

• Relative Humidity (RH):

  • Range: 10% to 90% RH

  • Accuracy at 20°C (68°F):

    • ±3% RH (30–70% RH)

    • ±5% RH (10–90% RH)

• Dew Point Temperature:

  • Range: -30°C to +55°C (-22°F to +131°F)

  • Accuracy:

    • < ±2°C (3.6°F) for |T| - |Td| < 25°C (45°F)

    • < ±3°C (5.4°F) for |T| - |Td| < 30°C (54°F)

• Outputs:

  • Analog: 4–20 mA (load resistance < 500 Ω)

  • Digital Interface: RS485 with Modbus RTU or BACnet MS/TP (optional)\

• Supply Voltage:

  • 24 V AC ±20% or 15–35 V DC\

• Current Consumption:

  • Analog Output: Typical 14 mA + output current; peak 0.3 A for 0.3 s

  • Digital Interface: Typical 11 mA at 15–35 V DC; peak 150 mA at 15–35 V DC\

• Enclosure:

  • Material: Polycarbonate

  • Protection Class: IP30

  • Dimensions: 85 x 100 x 26 mm

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🛠️ Applications

The EE800-M11HV1A6 is ideal for:

• Demand-Controlled Ventilation (DCV): Optimizing indoor air quality and energy efficiency by adjusting ventilation based on CO₂ levels.

• HVAC Systems: Monitoring and controlling temperature and humidity for comfort and equipment protection.

• Building Automation: Integrating environmental data into smart building systems for enhanced management.

• Indoor Air Quality Monitoring: Ensuring healthy and comfortable environments in offices, schools, and public spaces.