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AVFM 6.1 Area-Velocity Flow Meter
Brand: Pulsar Measurement
The Area Velocity Flow Measurement method is the most common method of all flow measurements.
The AVFM 6.1 Area Velocity Flow Meter uses a submersible ultrasonic sensor measuring both the level and velocity of flowing liquid to calculate flow measurement in an open channel or pipe.
The sensors are mounted either inside a pipe or at the bottom of a channel, and the sensor is built to resist fouling, corrosion, and abrasion.
The AVFM 6.1 Area Velocity Flow Meter can be configured with the standard submerged velocity-level sensor or with submerged velocity in combination with a separate non-contacting ultrasonic level sensor, which is suitable for highly aerated fluids or those with a high concentration of suspended solids.
Its easy-to-use, menu-driven setup means that the AVFM 6.1 Area-Velocity Flow Meter is just minutes away from giving you that all-important flow measurement result.
Features- No flume or weir required – submersible ultrasonic sensor measures velocity and level simultaneously to calculate flow. No moving parts to wear, foul, or clog
- The built-in 5-button keypad, intuitive menu, and large backlit LCD display make the Greyline AVFM 6.1 the most operator-friendly area velocity flow meter on the market
- Fast, simple, installation and set-up
- Improved performance in a wider range of operating conditions
- At a glance, view flow rate, velocity, level, totalizer, relay status, and important diagnostic information on the LCD display
- Three isolated 4-20 mA outputs for flow rate, velocity, and level, and two relay outputs for pulse output or alarm
- 6.5 million point data logger for greater flexibility of data monitoring, control, and reporting
- Min, Max, and Total Flow data from the last 365 days is available on the LCD display, or download directly to a USB for easy reporting
- Monitors flow rate, volume total, run hours, and diagnostic information through only two wires with the optional Modbus RTU serial communication output
Specifications
Brand
Channel Types
- Round Pipe, Rectangular, Trapezoid, Egg, or Custom Shapes
Electronics Enclosure
- NEMA 4X (IP66) Polycarbonate with Clear, Shatterproof Cover
Accuracy
- Level: ± 0.25 % of Reading or ± 0.08 In, Whichever Is Greater
- Velocity: ± 2 % of Reading or 0.01 m/s (± 0.04 ft/s), Whichever Is Greater
Repeatability/Linearity
- 0.1%
- 0.5%
Display
- White, Back-Lit Matrix - Displays Flow Rate, Totalizer, Relay States, Operating Mode, and Calibration Menu
Programming
- Built-In 5-Key Calibrator with English, French, or Spanish Language Selection
Power Input
- 100-240 Vac 50/60 Hz, 10 VA Max.
- Optional: 9-32 Vdc, 10 W Max.
Outputs
- 0-5 Vdc by Menu Selection
- 3 Isolated 4-20 mA, 1,000 ohm (Flow, Level, and Velocity)
Control Relays
- 2 Relays, Form 'C' Dry Contacts Rated 5 A SPDT, Programmable for Flow Proportional Pulse (Sampler/Totalizer), Flow, and/or Level Alarm
Data Logging
- Programmable 26 Million Point Data Capacity, Time and Date Stamped Plus Formatted Flow Reports Including Total, Average, Min., Max., and Times of Occurrence. Includes USB output to Flash Drives and Windows Software
Operating Temperature
- -20° to 60° C (-5° to 140° F)
Certifications & Approvals
- CE, CSA/UL/EN 61010-1
