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escow3a – co 300ppm wall transmitter current output
Carlo Gavazzi ESCOW3A is a wall-mounted electrochemical carbon monoxide transmitter with a 0–300 ppm measuring range and 4–20 mA analogue current output for HVAC, ventilation and building automation applications.
Why Choose the Carlo Gavazzi ESCOW3A Carbon Monoxide Transmitter?
The Carlo Gavazzi ESCOW3A is a compact wall-mounted carbon monoxide (CO) transmitter designed for continuous gas monitoring in HVAC, ventilation and building automation applications. It uses electrochemical sensing technology to measure carbon monoxide concentration and convert the measurement into a standard analogue current signal for integration with compatible control systems.
The ESCOW3A provides a 0–300 ppm CO measuring range with a 4–20 mA analogue output, making it suitable for connection to HVAC controllers, PLCs and building management systems. Its wall-mounted configuration is particularly suited to monitoring occupied areas and other indoor locations where carbon monoxide levels form part of an environmental control or ventilation strategy.
With an 8–35 V DC or 12–30 V AC supply, M12 plug connection and robust plastic enclosure, the ESCOW3A provides straightforward installation in building automation systems. The transmitter housing offers IP65 protection, while the sensing element is rated IP20, supporting dependable indoor CO monitoring applications.
Key Advantages
- Continuous carbon monoxide measurement from 0–300 ppm.
- Electrochemical sensing technology for CO concentration measurement.
- Standard 4–20 mA analogue current output for controller integration.
- Wall-mounted design for indoor environmental and ventilation monitoring.
- Flexible 8–35 V DC or 12–30 V AC supply.
- Robust plastic housing with IP65 enclosure protection.
Key Features
- Carlo Gavazzi ESCOW3 carbon monoxide sensor family.
- 0–300 ppm CO measuring range.
- Electrochemical CO sensing element.
- 4–20 mA analogue output.
- ±3% accuracy.
- Wall-mount configuration.
- 8–35 V DC / 12–30 V AC power supply.
- 60 mA supply current.
- M12 plug electrical connection.
- Designed for operation from 0 to +50 °C.
Reliable Carbon Monoxide Monitoring for Building Automation
Carbon monoxide transmitters continuously measure CO concentration and provide a proportional electrical signal that can be monitored by HVAC controllers, PLCs and building management systems. This allows ventilation and environmental control equipment to respond to changing carbon monoxide levels as part of an appropriately designed building-control strategy.
The ESCOW3A combines an electrochemical sensing element with a standard 4–20 mA current output, providing a widely used analogue interface for industrial and building automation equipment. Its wall-mounted construction makes it suitable for monitoring indoor areas where continuous carbon monoxide measurement is required.
Typical Applications
- HVAC carbon monoxide monitoring.
- Building management systems.
- Demand-controlled ventilation systems.
- Car parks and enclosed parking facilities.
- Garages and vehicle service areas.
- Commercial building environmental monitoring.
- Industrial ventilation systems.
- Indoor air-quality monitoring installations.
Technical Specifications
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| Connection | M12 connector | |
|---|---|---|
| Manufacturer | Carlo Gavazzi | |
| Model | ESCOW3A | |
| Product type | Carbon monoxide transmitter | |
| Measured gas | Carbon monoxide (CO) | |
| Sensing technology | Electrochemical | |
| Mounting type | Wall mounting | |
| CO measuring range | 0–300 ppm | |
| Accuracy | ±3% | |
| Analogue output | 4–20 mA | |
| Power supply | 8–35 V DC / 12–30 V AC | |
| Supply current | 60 mA | |
| Electrical connection | M12 plug | |
| Housing material | Plastic | |
| Housing protection rating | IP65 | |
| Sensing element protection rating | IP20 | |
| Operating temperature | 0 to +50 °C | |
| Standardised dimensions (W × H × D) | 80 × 140 × 38 mm |
Frequently Asked Questions
What does the Carlo Gavazzi ESCOW3A measure?
The ESCOW3A measures carbon monoxide concentration across a 0–300 ppm range for HVAC, ventilation and building automation applications.
What sensing technology does the ESCOW3A use?
The ESCOW3A uses an electrochemical sensing element designed to measure carbon monoxide concentration.
What output does the ESCOW3A provide?
The transmitter provides a standard 4–20 mA analogue current output for connection to compatible HVAC controllers, PLCs and building management systems.
What is the accuracy of the ESCOW3A?
The ESCOW3A has a specified accuracy of ±3% for carbon monoxide measurement.
Where is the ESCOW3A installed?
The ESCOW3A is designed for wall mounting and can be used in indoor HVAC, ventilation and environmental monitoring applications.
What power supply does the ESCOW3A require?
The transmitter operates from 8–35 V DC or 12–30 V AC, providing flexibility for integration with common building and industrial control systems.
What protection rating does the ESCOW3A provide?
The transmitter's plastic housing provides IP65 protection, while the carbon monoxide sensing element is rated IP20.
Trusted by HVAC and Building Automation Professionals
Carlo Gavazzi environmental transmitters provide practical sensing solutions for HVAC, ventilation and building automation systems, helping engineers integrate carbon monoxide measurements into environmental monitoring and automated ventilation applications.
