57721 Web-IO CO2

Monitor air quality

Web-IO CO₂ is a network-capable measuring instrument for detecting carbon dioxide concentration in the ambient air.

For long-term, continuous detection of the CO₂ concentrations it is equipped with an internal data logger, and the measuring data can be sent to the W&T cloud as well. The alarm function sends messages when configurable limits are exceeded.

The measuring range of 0-10,000 ppm is suitable for monitoring the indoor air in schools, daycare centers, retirement homes and office buildings. Applications from agriculture and horticulture include stall climate detection and greenhouse monitoring.

Sensor:

• CO₂ sensor:
  • Measuring range: 0-5000 ppm CO₂
  • Measuring range (undefined accuracy): 5000-10,000 ppm CO₂

Connectivity:

• Configurable LED tower on sensor for optical indication of limit values
• Use browser to monitor CO₂ and trends
• Alarm and reporting function:
  • E-mail for alarm or reporting functions
  • SNMP polling / alarm traps
  • Configure up to 12 alarm messages
• Dynamic integration into other Web sites:
  • Direct access to current measurement values, e.g. JavaScript (AJAX).
• Current Industry 4.0 protocols:
  • REST and MQTT support
• Additional software interfaces for incorporating into your systems/databases:
  • SNMPv1, SNMPv2c, SNMPv3
  • Modbus-TCP
  • OPC server
  • Syslog
  • Sensobase (database integration via ODBC)
  • TCP and UDP sockets, client and server
  • FTP (data logging)
• Possible applications:
  • Monitor CO₂ values in the office
  • Logging of measurements via FTP, Excel file, email attachment and internal memory

Data logger:

• Internal data logger
  • Memory capacity: min. 7 weeks, max. 20 years
  • Save frequency: 15, 30 sec, 1, 5, 15, 60 min
• Document measurement data online in the W&T Cloud and access from anywhere in the world
• Internal clock
  • Time synchronization using time server calibration
  • Battery-backed device clock

Standards & more

• optional: ISO factory calibration per DIN EN ISO/IEC 17025
  • with calibration certificate for verified documentation of the measured value deviations
  • Valid for 12 months
• optional: DAkkS/DKD calibration per DIN EN ISO/IEC 17025
  • with calibration certificate for verified traceability to national standards
  • Valid for 12 months
• Supply voltage via Power-over-Ethernet (PoE)
  • Phantom power using data pairs
  • Power over unused wire pairs
  • External power supply is an alternative
• Conforms to standards both in office and industrial environments:
  • High noise resistance for industrial environments
  • Low noise emission for residential and business areas
• 5 year guarantee

Connections and displays:

• Sensor:
  • CO₂ air quality measurement
  • DB9 receptacle
  • Cable length: 2m (can be extended to max. 20m)
  • Additional temperature and relative humidity measurement on request
• Network:
  • 10/100BaseT Autosensing/Auto-MDIX
  • RJ45
  • IPv6 on request
• Galvanic isolation:
  • Network connection min. 1500 V
• Supply voltage:
  • Power-over-Ethernet (PoE) or
  • DC 12V .. 48V (+/-10%)
• Supply connection:
  • Plug-in screw terminal, 5.08mm spacing
  • Labeled "L+" and "M"
• Current consumption:
  • PoE Class 1 (0.44 - 3.84W)
  • typ. 100mA @ 24V DC with external supply
• Displays:
  • 1 LED power
  • 2 LEDs network status
  • 4 LEDs status and error
  • 3 LEDs traffic-light display in sensor

Measuring unit:

• Measuring range:
  • 0-5000 ppm CO₂
  • 5000-10,000 ppm CO₂ (undefined accuracy)
• Resolution:
  • 1 ppm CO₂
• Measuring error:
  • Air quality (0-5000 ppm):
  • max. ±50 ppm +3% of the measured value
  • Air quality (5000-10,000 ppm):
  • undefined
• Measuring frequency:
  • 4s
• Storage frequency:
  • 15s, 30s, 1m, 5m, 15m, 60m
• Memory depth (4MB):
  • min. 7 weeks, max. 20 years

Housing and other data:

• Housing:
  • Plastic compact housing for top-hat rail mount
  • 105x22x75mm (LxWxH)
• Enclosure rating:
  • IP20
• Weight:
  • approx. 200g
• Ambient temperature
  • Storage: -40..+70°C
  • Operating: 0 .. +50°C
• Permissible relative humidity:
  • 0...90% relative humidity (non-condensing)
• Scope of delivery:
  • 1x Web-IO CO₂ for DIN rail mount
  • 1x W&T sensor, 2m (CO₂)
  • 1x Quick Guide