JLC International distributes multiple devices for usage with HVAC systems. Below is a review of the attributes of each air velocity transmitter we provide. With different qualities available, a selection can be made to accurately determine air velocity for HVAC systems.
The HVAC series EE650 and EE671 is an air velocity transmitter that is designed to be pollutant-resistant, making it ideal for a lot of uses. Remote probe versions are also available, making it even easier to obtain a reading.
The series EE660 and EE576 is shock resistant and has low angular dependence. This series has also wall, duct, and remote probe versions available.
We know that choosing the right air flow monitor can be confusing. Contact us today to speak with one of our highly experienced engineers so we can answer any questions you may have.
The hot film, anemometer (HFA) is made of a thin, structured, metallic resistive film or “heater”, which is deposited onto a substrate. In the operating state of the HFA, the electrical power heats the heater up to a certain temperature. An airflow of ambient temperature cools the heater down until the equilibrium between the electrical Joule heat and the thermal heat loss is reached.
The higher the velocity, the higher the heat loss from the heater. The temperature difference depends further on the ambient temperature, which can change. Therefore, the air temperature is measured with an additional temperature sensor that is often part of a bridge circuit in order to compensate changes in the ambient temperature automatically.
The type of air velocity transmitters based on this measuring principle are called: Constant-Temperature-Anemometer (CTA).
The air velocity transmitters manufactured by E+E Elektronik are of the CTA type and are available in:
- Compact form
- Duct and wall mount
- Remote probe
Medium Velocity – HVAC Series EE650
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Specifications
- Working ranges: 0 – 2000 / 3000 / 4000 ft/min – selectable
- 0 – 10 / 15 / 20 m/s – selectable
- Output: 0 – 10 Vdc / 4 – 20 mA – selectable
- Duct and remote probe versions
- Low angular dependence
- Low sensitivity to shocks
- Almost non-directional
- Good resistance to pollutants
- Digital Interface RS485 Modbus RTU or BACnet MS/TP
Medium Velocity Probe – HVAC Series EE671
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Specifications
- Working ranges: 0 – 1000 ft/min (0 – 5 m/s)
- 0 – 2000 ft/min (0 – 10 m/s
- 0 – 3000 ft/min (0 – 15 m/s)
- 0 – 4000 ft/min (0 – 20 m/s)
- Output: 0 – 1 V / 0 – 15 V / 0 – 10 V (max. 1 mA)
- Supply voltage: 10 – 29 Vdc for 0 – 1 V and 0 – 5 V output
- 15 – 29 Vdc for 0 – 10 V output
- Cable or M12 connector
- Low angular dependence
- Low sensitivity to shocks
- Almost non-directional
- Good resistance to pollutants
- Digital Interface RS485 Modbus RTU or BACnet MS/TP
Low Velocity – Clean Room Series EE660
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Specifications
- Working ranges: 0 – 200 / 300 / 400 ft/min – selectable
- 0 – 1.0 / 1.5 / 2.0 m/s – selectable
- Output: 0 – 10 Vdc / 4 – 20 mA – selectable *)
- Digital output: RS485 Modbus RTU or BACnet MS/TP *)
- Measurement down to “0” ft/min (m/s)
- Wall, duct and remote probe versions
- Low angular dependence
- Low sensitivity to shocks
- Almost non-directional
- Good resistance to pollutants
- Display optional
*) Output analogue or digital
Low Velocity Probe – HVAC Series EE576
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Specifications
- Working ranges: 0 – 200 ft/min (0 – 1 m/s)
- 0 – 400 ft/min (0 – 2 m/s)
- Output: 0 – 5 V / 0 – 10 V (max 1 mA)
- Supply voltage: 10 – 19 Vdc for 0 – 5 V output
- 19 – 29 Vdc for 0 – 10 V output
- Cable length 1.5 ft (0.5 m) or 6.6 ft (2 m)
- Low angular dependence
- Low sensitivity to shocks
- Almost non-directional
- Good resistance to pollutants
Air Velocity Sensors
Measuring Air Velocity
Humidity Influence on Air Velocity Measurement
IP / NEMA – A Comparison
Please note: Manual data files can be quite large, please be patient while downloading.
The manuals are for information purposes only and shouldn’t be used for operating the instrument
JLC International strives to provide you with a selection of carbon dioxide transmitters for a variety of different applications. Interested parties who wish to learn more about our inventory can contact us by filling out a contact form or calling 1-888-358-2518.