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esco2w2am – co2 2000ppm wall tx current output with com
Carlo Gavazzi ESCO2W2AM is a wall-mounted NDIR CO2 transmitter with a 0–2000 ppm measuring range, 4–20 mA analogue output and Modbus RS485 communication for HVAC and building automation systems.
Why Choose the Carlo Gavazzi ESCO2W2AM CO2 Transmitter?
The Carlo Gavazzi ESCO2W2AM is a compact wall-mounted carbon dioxide (CO2) transmitter designed for continuous indoor air-quality monitoring in HVAC, building automation and demand-controlled ventilation systems. As part of the Carlo Gavazzi ESCO2 environmental sensor series, it uses non-dispersive infrared sensing technology to measure CO2 concentration reliably in commercial and industrial environments.
The ESCO2W2AM provides a 0–2,000 ppm CO2 measuring range and converts the measured concentration into a standard 4–20 mA analogue output. This allows straightforward connection to HVAC controllers, PLCs and building management systems for ventilation control, environmental monitoring and energy-management applications.
In addition to its analogue current output, this model incorporates Modbus RS485 communication for integration into networked building automation systems. It operates from 12–36 V DC or 24 V AC, uses an M12 electrical connection and is housed in a compact 80 × 80 × 38 mm wall-mount enclosure with IP54 protection.
Key Advantages
- Continuous CO2 monitoring from 0–2,000 ppm for indoor air-quality applications.
- Non-dispersive infrared (NDIR) sensing technology for dependable carbon dioxide measurement.
- Standard 4–20 mA analogue output simplifies integration with industrial and HVAC controllers.
- Integrated Modbus RS485 communication supports networked building management systems.
- Compact wall-mounted enclosure designed for indoor environmental monitoring.
- Flexible 12–36 V DC or 24 V AC supply for common building automation installations.
Key Features
- Carlo Gavazzi ESCO2 environmental sensor series.
- Carbon dioxide (CO2) transmitter.
- 0–2,000 ppm measuring range.
- Non-dispersive infrared CO2 sensor.
- 4–20 mA analogue current output.
- Modbus RS485 communication.
- Wall-mount configuration.
- M12 × 1 electrical connector.
- Compact 80 × 80 × 38 mm enclosure.
- IP54 protection for the wall-mounted version.
Reliable CO2 Monitoring for Building Automation
Carbon dioxide concentration is commonly used as an indicator of occupancy-related indoor air quality. By continuously measuring CO2 levels, building control systems can regulate ventilation according to actual demand, helping maintain comfortable indoor conditions while avoiding unnecessary ventilation and associated energy consumption.
The ESCO2W2AM combines an NDIR sensing element with both 4–20 mA analogue output and Modbus RS485 communication. This enables the transmitter to operate with conventional analogue control equipment while also providing integration into modern networked building management and HVAC systems.
Typical Applications
- HVAC and demand-controlled ventilation systems.
- Building management systems.
- Indoor air-quality monitoring.
- Offices and commercial buildings.
- Schools and educational facilities.
- Public buildings and leisure facilities.
- Industrial environmental monitoring.
- Energy-efficient ventilation control systems.
Technical Specifications
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| IP Rating | IP54 | |
|---|---|---|
| Connection | M12 connector | |
| Manufacturer | Carlo Gavazzi | |
| Series | ESCO2 | |
| Model | ESCO2W2AM | |
| Product type | CO2 transmitter | |
| Measured parameter | Carbon dioxide (CO2) | |
| Sensing technology | Non-dispersive infrared (NDIR) | |
| Mounting type | Wall mounting | |
| CO2 measuring range | 0–2,000 ppm | |
| CO2 accuracy | < ±40 ppm at specified reference conditions | |
| Analogue output | 4–20 mA | |
| Communication | Modbus RS485 | |
| Power supply | 12–36 V DC / 24 V AC | |
| DC current consumption | 37 mA | |
| AC current consumption | 70 mA | |
| Electrical connection | M12 × 1 connector | |
| Housing material | Plastic | |
| Protection rating | IP54 | |
| Operating temperature | 0 to +50 °C | |
| Storage temperature | -20 to +60 °C | |
| Dimensions (W × H × D) | 80 × 80 × 38 mm | |
| Approvals / marks | CE, RoHS |
Frequently Asked Questions
What does the Carlo Gavazzi ESCO2W2AM measure?
The ESCO2W2AM measures carbon dioxide concentration from 0–2,000 ppm for indoor air-quality, HVAC and building automation applications.
What sensing technology does the ESCO2W2AM use?
The transmitter uses non-dispersive infrared (NDIR) technology to measure carbon dioxide concentration.
What analogue output does the ESCO2W2AM provide?
The ESCO2W2AM provides a standard 4–20 mA current output for connection to compatible HVAC controllers, PLCs and building management systems.
Does the ESCO2W2AM support Modbus communication?
Yes. The ESCO2W2AM includes Modbus RS485 communication, allowing CO2 measurement data to be integrated into compatible digital building automation networks.
Where is the ESCO2W2AM installed?
The ESCO2W2AM is designed for wall mounting, making it suitable for monitoring carbon dioxide concentration within occupied indoor spaces.
What power supply does the ESCO2W2AM require?
The transmitter operates from 12–36 V DC or 24 V AC, supporting common HVAC and building automation power systems.
What is the protection rating of the ESCO2W2AM?
The wall-mounted ESCO2W2AM has an IP54 protection rating and is designed for indoor environmental monitoring applications.
Trusted by HVAC and Building Automation Professionals
Carlo Gavazzi ES series environmental sensors provide practical monitoring solutions for HVAC and building automation systems, helping engineers integrate CO2 measurements into ventilation, indoor air-quality and energy-management applications.
