AVLV-2DA1-LCD Air Velocity Transmitter
Product Information
The Series AVLV Air Velocity Transmitter is a device that is
designed to quickly and accurately measure air velocity or
volumetric flow. It is capable of providing measurements in both
imperial and metric units. The transmitter offers simultaneous
current and voltage outputs on all models, allowing for universal
inputs to monitoring equipment. The unit can be configured through
local DIP switches, which control the output range, units, and
0-5/10 VDC, 4-20 mA output. Additionally, the transmitter can be
equipped with an optional integral display or a portable remote
tool for local monitoring and configuration.
Specifications
- Model: AVLV
- Accuracy: 2
- Mounting: Duct mount
- Output: Analog universal (0-5 VDC, 0-10 VDC, 4-20 mA)
- Options: FC Factory calibration certificate, GLD Electrical
cable gland, LCD LCD display, NIST NIST certificate
Accuracy Chart
The accuracy of the measurements depends on the specific model
selected when ordering. Please refer to the accuracy rating
provided for each model.
Warranty
The Series AVLV Air Velocity Transmitter comes with a year
limited warranty.
Product Usage Instructions
- Choose the appropriate model of the Series AVLV Air Velocity
Transmitter based on your requirements. - Mount the transmitter in the duct using the duct mount
option. - If necessary, connect the electrical cable gland for secure
cable connection. - Configure the output range, units, and 0-5/10 VDC, 4-20 mA
output using the local DIP switches. - If desired, attach the optional integral display or use the
portable remote tool for local monitoring and configuration. - Refer to the accuracy chart to determine the accuracy rating of
your specific model. - For any warranty claims or issues, contact DWYER INSTRUMENTS,
LLC.
Note: Please refer to the complete user manual for detailed
instructions and safety guidelines.
AIR QUALITY
SERIES AVLV
AIR VELOCITY TRANSMITTER
1% and 2% Models, Optional BACnet MS/TP or Modbus®
3-49/64 [95.71]
1/2 NPS
2-43/64 [67.92]
®
YEAR LIMITED WARRANTY
3-3/16 [80.81] 1-19/32 [40.59]
31/32 24.58
VIDEO ON
3-33/64 [89.13]
7-41/64 [194.07]
7-17/64 [184.60] 39/64 [15.32]
Ø15/32 [11.84]
2-5/32 [54.82]
LINE
Air Velocity Transmitters
The Series AVLV Air Velocity Transmitter quickly and accurately measures air velocity or volumetric flow in imperial or metric units. Simultaneous current and voltage outputs on all models provide universal inputs to monitoring equipment while the output range, units, and 0-5/10 VDC, 4-20 mA output can be configured via local DIP switches. The optional integral display, or the portable remote tool, provide a convenient way to locally monitor process values and configure the unit.
Models are available in 1% and 2% accuracy models and low velocity ranges to suit a variety of needs, and the optional BACnet MS/TP or Modbus® RTU/ASCII communication protocol allows units to be daisy-chained while providing access to all of the velocity and flow data, as well as additional information such as air temperature. The lower ranges in these high accuracy units allow for applications in quality intensive environments, such as the pharmaceutical industry.
BENEFITS/FEATURES · Minimal preventative maintenance as sensing element is covered with an engineered
protective coating · Easy field setup via the on board dip switches for range and units
APPLICATIONS · VAV systems · Building ducts · Clean room systems
SPECIFICATIONS
Service: Clean air and non-combustible, compatible gases. Wetted Materials: Consult factory. Range: 100, 200, 300, 400 FPM (0.5, 1, 1.5, 2 m/s); field selectable. Accuracy: See chart. Temperature Limits: 32 to 122°F (0 to 50°C). Power Requirements: 24 VDC ±20% or 24 VAC ±20%. Humidity Limits: 5 to 95% RH, non-condensing. Output Signals: 4-20 mA, 0-5 VDC, 0-10 VDC. Response Time (90%): 4 s, typical; 1 s at constant temperature. Zero and Span Adjustments: Digital push buttons. Output Load Resistance: Current output: 0 to 1100 max.; Voltage output: Minimum load resistance 1 k. Current Consumption: 60 mA max. Display: 5 digit LCD (optional). Electrical Connections: Analog: Power and output: 4-wire removable European style terminal block for 16 to 26 AWG; Communication: Connections: BACnet MS/ TP or Modbus® RTU/ASCII: 3-wire removable European style terminal block for 16 to 26 AWG. Supported Communication Baud Rates: 9600, 19200, 38400, 57600, 76800, 115200 (optional). Device Load: 1/8 unit load. Electrical Entry: 1/2 NPS thread; Accessory: Cable gland for 5 to 10 mm diameter cable, A-151. Enclosure Rating: NEMA 4X (IP66). Mounting Orientation: Flow direction must be parallel to the sensor tip. Weight: 6.0 oz (160 g). Compliance: BTL, CE.
MODEL CHART
Example AVLV -2 D A1 -LCD AVLV-2DA1-LCD
Model AVLV
Air velocity transmitter
Accuracy
2
± (2% of reading + 0.06 m/s)
1
± (1% of reading + 0.06 m/s)
Mounting
D
Duct mount
Output
A1
Analog universal (0-5 VDC, 0-10 VDC, 4-20 mA)
B1
Analog + BACnet MS/TP
M1
Analog + Modbus® RTU/ASCII
Options
FC Factory calibration certificate
GLD Electrical cable gland
LCD LCD display
NIST NIST certificate
ACCURACY CHART
Velocity Range
Accuracy Rating*
20 to 100 FPM (0.15 to 0.5 m/s) ± (2% of reading + 0.04 m/s [7.9 FPM])
± (1% of reading + 0.04 m/s [7.9 FPM])
20 to 200 FPM (0.15 to 1.0 m/s) ± (2% of reading + 0.04 m/s [7.9 FPM])
± (1% of reading + 0.04 m/s [7.9 FPM])
20 to 300 FPM (0.15 to 1.5 m/s) ± (2% of reading + 0.05 m/s [9.8 FPM])
± (1% of reading + 0.05 m/s [9.8 FPM])
20 to 400 FPM (0.15 to 2.0 m/s) ± (2% of reading + 0.06 m/s [11.8 FPM])
± (1% of reading + 0.06 m/s [11.8 FPM])
*Accuracy dependent on model selected when ordering.
Modbus® is a registered trademark of Schneider Electric USA, Inc.
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