Dwyer Instruments AVUL-5DM1 | Air velocity transmitter | 5% of reading accuracy | Duct mount | Modbus® communications
The Dwyer AVUL-5DM1 Air Velocity Transmitter is a high-velocity duct-mount transmitter designed for supply and exhaust duct applications. It provides 5% of reading accuracy, Modbus RTU/ASCII communication, and field-selectable velocity ranges from 1000 to 4000 FPM, making it suitable for AHU, fan-control, and building management applications.
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Part Number: AVUL-5DM1
The Dwyer AVUL-5DM1 is built for higher-velocity duct applications, providing reliable air velocity measurement across a range of 1000 to 4000 FPM (5–20 m/s). With 5% of reading accuracy and Modbus RTU/ASCII communication, it is designed for integration with compatible building management systems and HVAC controllers.
The transmitter offers four field-selectable velocity ranges: 1000, 2000, 3000, or 4000 FPM (5, 10, 15, or 20 m/s). This allows the device to be configured according to the airflow requirements of the specific duct system.
A NEMA 4X (IP66) enclosure provides protection suitable for mechanical rooms and plenum environments. The AVUL-5DM1 operates from 32 to 122°F (0–50°C) and supports 5–95% RH non-condensing humidity conditions.
The transmitter has a response time of approximately 4 seconds under typical conditions and 1 second at constant temperature, making it suitable for real-time AHU and fan-control applications. It operates on 24 VDC or 24 VAC, with a maximum current consumption of 60 mA.
This variant does not include a local display. Air velocity readings are transmitted through Modbus to the connected BMS or controller. Its compact body is designed for installation with a standard duct probe assembly, while BTL and CE approvals support applicable integration and electrical requirements.
For applications where local monitoring is required, the Dwyer AVUL-5DM1-LCD provides the same high-velocity measurement and Modbus communication capabilities with an integrated 5-digit LCD.
Key Benefits
- 5% of reading accuracy for high-velocity duct applications
- Modbus RTU/ASCII communication for BMS integration
- Field-selectable ranges from 1000 to 4000 FPM
- Four selectable velocity settings: 1000, 2000, 3000, and 4000 FPM
- NEMA 4X (IP66) enclosure for mechanical room and plenum environments
- Suitable for AHU and fan-control applications
- Compact design for standard duct probe installation
- No onboard display for a streamlined transmitter configuration
Who This Product Is Best For
The Dwyer AVUL-5DM1 is suitable for HVAC controls contractors, BMS integrators, mechanical contractors, facility managers, and building automation professionals working with higher-velocity duct systems.
It is particularly suited to AHUs, supply and exhaust ducts, fan-control systems, and building automation applications where Modbus communication is required without an onboard display.
How to Use
- Mount the AVUL-5DM1 in the duct according to standard probe installation practices.
- Connect the transmitter to a suitable 24 VDC or 24 VAC power supply.
- Connect the Modbus RTU/ASCII communication wiring to the compatible BMS or controller.
- Select the required velocity range: 1000, 2000, 3000, or 4000 FPM.
- Verify that the transmitted air velocity reading is correctly received by the connected BMS or controller.
Frequently Asked Questions
What accuracy does the Dwyer AVUL-5DM1 provide?
The AVUL-5DM1 provides 5% of reading accuracy across its field-selectable velocity ranges.
What velocity ranges can the AVUL-5DM1 measure?
It can be configured for 1000, 2000, 3000, or 4000 FPM (5, 10, 15, or 20 m/s).
Does the AVUL-5DM1 support Modbus?
Yes. The transmitter communicates through Modbus RTU/ASCII for integration with compatible Modbus-based BMS and control systems.
What is the enclosure rating of the AVUL-5DM1?
The transmitter has a NEMA 4X (IP66) enclosure rating, suitable for mechanical room and plenum installation.
Does the AVUL-5DM1 have a local display?
No. The AVUL-5DM1 does not include an onboard display. Readings are transmitted through Modbus to the connected BMS or controller.
What power supply does the AVUL-5DM1 require?
It operates on 24 VDC or 24 VAC with a maximum current consumption of 60 mA.
What is the difference between the AVUL-5DM1 and AVUL-5DM1-LCD?
Both models provide high-velocity air measurement and Modbus RTU/ASCII communication. The AVUL-5DM1-LCD includes a 5-digit LCD, while the AVUL-5DM1 does not have a local display.
Does GeneralTech Shop deliver the AVUL-5DM1 across the UAE?
For availability and delivery information, contact GeneralTech Shop at +971 6 5436933.
Request a Quote
Looking for the Dwyer AVUL-5DM1 Air Velocity Transmitter in the UAE? Contact Generaltechshop.ae for pricing, availability, and application assistance.
Call: +971 6 5436933
