


Dwyer Instruments AVLV-1DM1-LCD | Air velocity transmitter | 1% accuracy | Duct mount | Modbus" communication with LCD display
An air velocity transmitter, such as the Series AVLV, Model AVLV-1DM1-LCD, detects air velocity or volumetric flow in either imperial or metric values with speed and accuracy. All models provide simultaneous current and voltage outputs that allow for universal inputs to monitoring devices. Local DIP switches can be used to customize the output range, units, and 0-5/10 VDC, 4-20 mA output. One handy way to configure the device and monitor process values locally is to use the portable remote tool or the optional integral display. To meet a range of needs, models are offered in low velocity ranges and accuracy levels of 1% and 2%. Additionally, units can be daisy-chained and all velocity and flow data, along with extra information like air temperature, can be accessed via the optional BACnet MS/TP or Modbus® RTU/ASCII communication protocol. These high precision units' lower ranges make them suitable for use in high-quality settings like the pharmaceutical sector.

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- Specifications
- Features
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Accuracy | +/-1% |
Approvals | BTL, CE |
Connection | Communication: Connections: BACnet MS/ TP or Modbus® RTU/ASCII: three wire removable European style terminal block for 16 to 26 AWG |
Connection | Electrical: Analog: Power and output: four wire removable European style terminal block for 16 to 26 AWG Communication: Connections: BACnet MS/ TP or Modbus® RTU/ASCII: three wire removable European style terminal block for 16 to 26 AWG |
Current consumption [mA] | 60 mA max |
Device Load | 1/8 unit load |
Display | 5 digit LCD (optional) |
Enclosure Rating | NEMA 4X (IP66) |
Humidity | Limit: 5 to 95% RH, non-condensing |
Manufacturer | Dwyer Instruments |
Material | Wetted: Consult factory |
Maximum operating temperature | 32 to 122°F (0 to 50°C) |
Mounting | Orientation: Flow direction must be parallel to the sensor tip |
Output Load Resistance | Current output: 0 to 1100 ¢ž¦ max. Voltage output: Minimum load resistance 1 k¢ž¦ |
Output Signal | 4 to 20 mA, 0 to 5 VDC, 0 to 10 VDC |
Power | 24 VDC +/-20% or 24 VAC +/-20% |
Range | 100, 200, 300, 400 FPM (0.5, 1, 1.5, 2 m/s); field selectable |
Response Time | 4 s, typical 1 s at constant temperature |
Type | Air Velocity Transmitter |
Weight | 6.0 oz (160 g) |
- To ensure lifespan and durability, a tailored conformal coating has been applied to the sensing devices.
- Without the need for electricity, field configurable ranges can be readily established.
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