Area-velocity flow meter AVFM 6.1

ultrasonicfor waterfor wastewater

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. The AVFM 6.1 can measure forward flow velocity up to 6 m/s (19.7 ft/s) and reverse flow up to 1.5 m/s (5 ft/s). The electronics and software sample and average flow rates continuously provide stable readings. The submerged velocity/level sensor will measure flow in partially full and surcharged pipes with pressure up to 10 psi. The minimum recommended pipe diameter for the AVFM 6.1 Area-Velocity Flow Meter is 150 mm (5.9 in). Configuration is simple for the AVFM 6.1 Area Velocity Flow Meter. Just enter the pipe diameter or channel dimensions and the AVFM 6.1 automatically computes and displays flow volume. Configure the AVFM 6.1 for installation in irregular or compound channel shapes by entering the channel width and multiple level points through the simple menu system. Channels for virtually any shape can be monitored with your choice of measurement units. The Flow Meter will store time and date-stamped flow values at 10-second to 6-minute intervals.