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esavtd20am – air velocity temp duct tx current output with com
Carlo Gavazzi ESAVTD20AM is a duct-mounted air velocity and temperature transmitter with a 0–20 m/s airflow range, 0–50 °C temperature measurement, 4–20 mA analogue output and RS485 Modbus communication.
Why Choose the Carlo Gavazzi ESAVTD20AM Air Velocity and Temperature Transmitter?
The Carlo Gavazzi ESAVTD20AM is a professional duct-mounted air velocity and temperature transmitter designed for HVAC monitoring, building automation and environmental control applications. Part of the Carlo Gavazzi ESAVT environmental sensor series, it combines thermal air velocity measurement with temperature monitoring in a single compact transmitter.
The ESAVTD20AM measures air velocity across a 0–20 m/s range and temperature across 0–50 °C. It provides an industrial 4–20 mA analogue output together with RS485 Modbus communication, enabling measurement data to be integrated into building management systems, HVAC controllers and other automation platforms.
Designed specifically for air-duct mounting, the ESAVTD20AM operates from either an 8–35 V DC or 12–30 V AC supply. Its plastic IP54 housing, integrated duct probe and communication capability make it particularly suitable for monitoring ventilation performance, clean-room airflow, laminar flow and other environmental control processes.
Key Advantages
- Combines air velocity and temperature measurement in one transmitter.
- 0–20 m/s air velocity measuring range for HVAC and ventilation monitoring.
- 0–50 °C temperature measurement range.
- Industrial 4–20 mA analogue output for control-system integration.
- Integrated RS485 Modbus communication for digital monitoring and configuration.
- Duct-mounted design provides direct measurement of airflow within ventilation systems.
Key Features
- Carlo Gavazzi ESAVT air velocity and temperature transmitter series.
- Thermal air velocity measurement.
- 0–20 m/s air velocity range.
- 0–50 °C temperature range.
- 4–20 mA analogue output.
- RS485 Modbus communication.
- 8–35 V DC or 12–30 V AC power supply.
- Purpose-designed for air-duct mounting.
- IP54 plastic housing.
- Designed for monitoring and configuration with ESAV software.
- Suitable for HVAC, environmental control and clean-room applications.
Reliable Airflow and Temperature Monitoring for HVAC Systems
Monitoring air velocity is important for maintaining controlled airflow through ventilation ducts, air-handling equipment and environmental control systems. The Carlo Gavazzi ESAVTD20AM uses thermal measurement technology to monitor airflow while simultaneously providing temperature information, allowing two important HVAC parameters to be obtained from one sensor installation.
The combination of a standard 4–20 mA signal and RS485 Modbus communication makes the ESAVTD20AM particularly flexible for modern building automation. The analogue output can be connected to conventional controllers and PLC inputs, while Modbus communication enables digital monitoring and integration with compatible building management and supervisory systems.
Typical Applications
- HVAC air velocity and temperature monitoring.
- Ventilation and air-handling systems.
- Building management systems.
- Environmental control installations.
- Clean-room airflow monitoring.
- Laminar flow control applications.
- Industrial duct and process-air monitoring.
Technical Specifications
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| IP Rating | IP54 | |
|---|---|---|
| Manufacturer | Carlo Gavazzi | |
| Series | ESAVT Environmental Sensors | |
| Model | ESAVTD20AM | |
| Product type | Air velocity and temperature transmitter | |
| Measurement principle | Thermal air velocity measurement | |
| Mounting | Air duct | |
| Air velocity measuring range | 0–20 m/s | |
| Temperature measuring range | 0–50 °C | |
| Analogue output | 4–20 mA | |
| Communication | RS485 Modbus | |
| Display | No | |
| Power supply | 8–35 V DC or 12–30 V AC | |
| Housing material | Plastic | |
| Protection rating | IP54 | |
| Operating temperature | 0–50 °C | |
| Housing width | 80 mm | |
| Overall height | 261 mm |
Frequently Asked Questions
What is the Carlo Gavazzi ESAVTD20AM used for?
The ESAVTD20AM is designed to measure air velocity and temperature within air ducts, making it suitable for HVAC, ventilation, clean-room and environmental control systems.
What air velocity range does the ESAVTD20AM measure?
The Carlo Gavazzi ESAVTD20AM provides an air velocity measuring range of 0–20 m/s.
What output does the ESAVTD20AM provide?
The transmitter provides a 4–20 mA analogue output for integration with compatible controllers, PLCs and building automation equipment.
Does the ESAVTD20AM support digital communication?
Yes. The ESAVTD20AM incorporates RS485 Modbus communication, allowing measurement data to be integrated with compatible building management and automation systems.
What power supply does the ESAVTD20AM require?
The transmitter can operate from an 8–35 V DC or 12–30 V AC supply, providing flexibility when integrating it into HVAC and building automation installations.
Trusted for HVAC and Environmental Monitoring
Carlo Gavazzi ES environmental sensors provide building automation engineers, HVAC specialists and system integrators with practical measurement solutions for monitoring airflow, temperature and other environmental conditions in modern building and industrial control systems.
