Ultrasonic flow meter AquaRanger VHQ

volumefor water4-20 mA

Overview
The AquaRanger VHQ is a high-precision ultrasonic instrument for measuring flow in open channels. The system combines electronics, one or two ultrasonic or radar transducers mounted above the liquid, and a velocity meter. Flow is calculated from the wetted area (depending on channel shape and liquid height) multiplied by velocity. Measurement modes include: height-only (constant velocity), height+velocity (flow dependent on level and speed), and velocity-only (constant cross-sectional area such as a full pipe). The instrument displays instantaneous and totalized flow and integrates an event recorder (data logger) that stores and transmits records for up to six weeks or more depending on logging interval. Configuration is possible via front-panel keypad or PC software.

Functions / Table
Measurement: Electronics; Flow/flow rate; Level
Detection: Detection
Technology: Technology

Features

• Handles multiple measurement scenarios and provides instantaneous and total flow values.
• Event recorder/data logger with configurable interval (data storage up to six weeks or more depending on interval).
• Five freely programmable SPDT relays for alarms and controls (level, level-change rate, flow rate, average flow, temperature, diagnostics, signal loss, etc.).
• Programming via front keypad or PC with dedicated software.
• Supports high-accuracy configurations (±1 mm) using specific transducer/radar layouts for constant-velocity channels.
• Compatible with UTF-series ultrasonic transducers; measurement range depends on transducer model.
• Transducers can be installed up to 500 m from the electronics; speed sensor up to 100 m.
• Includes common channel profiles in software and a 32-point lineariser for non-standard channels.
• Available in STD version or SD8 variant with 8 GB internal memory on a removable micro SD card.

Technical specifications

• Model family: AquaRanger VHQ
• Measurement types: Level, flow/flow rate, volume and control
• Sensor types supported: Ultrasonic and radar transducers (UTF series)
• Transducer measuring range (depending on transducer): typically 0.3 ÷ 15 m
• General accuracy: 0.25% of measuring range or 6 mm, whichever is larger
• UTF03HR transducer: measuring range 0.3 ÷ 2.5 m; accuracy ±2 mm
• Maximum transducer cable distance to electronics: 500 m
• Maximum speed sensor cable distance: 100 m
• Data logger: onboard event recorder, stores data for weeks depending on interval
• Relays: 5 freely programmable SPDT relays
• Software: includes common channel profiles and 32-point lineariser; programmable via front keypad or PC software
• Memory option: STD or 8 GB internal memory on removable micro SD card (SD8)
• Outputs/display: instantaneous and total flow, velocity display (Speedy electronics for velocity-only measurement)