– This device is suitable for various types of channels, including rectangular, trapezoidal, egg-shaped, or partially filled pipes, without the need for hydraulic structures (partial flumes, weirs, V-notch, etc.).

– Installation of the ultrasonic velocity and level sensor in the channel bottom (contact) in the fixed model, where the height sensor can optionally be installed above the channel.

– Display of momentary flow, cumulative flow, and recording of information in the internal data logger system with USB output.

– The fixed type has three isolated 4-20 mA outputs related to flow, level, and velocity, and two relay outputs. The portable model has one isolated 4-20 mA output.

– Simple and easy setup through the keypad and password-protected user interface.

GENERAL SPECIFICATIONS
Operating Parameters: Round pipe, rectangular, trapezoid, egg, or custom shapes
Programming: Built-in 5-key calibrator with English, French, or Spanish language selection
Electronics Enclosure: NEMA4X (IP66) polycarbonate with clear, shatterproof cover
Accuracy
Level: ±0.25% of reading or ±2.03 mm (0.08 in), whichever is greater. Repeatability & Linearity 0.1%
Velocity: ±2% of reading or ±0.012 m/s (0.04 ft/s), whichever is greater. Requires solids or bubbles minimum size
of 100 microns, minimum concentration 75 ppm. Repeatability & Linearity 0.5%
Display: White, back-lit matrix — displays flow rate, totalizer, relay states, operating mode, and calibration menu
Power Input
100-240 V AC 50/60 Hz, 10 V A maximum
Optional: 9-32 V DC, 10 W maximum
Analog Output: 3 Isolated 4-20mA, 1 kΩ, (flow, level, and velocity) or 0-5 V DC by menu selection
Control Relays: 2 Relays, form ‘C’ dry contacts rated 5 A SPDT; programmable flow alarm and/or flow proportional pulse (sampler/
totalizer), flow and/or level alarm
Data logger: Programmable 26 million point data capacity, time and date stamped plus formatted flow reports including total,
average, minimum, maximum, and times of occurrence. Includes USB output to Flash Drives and Windows software
Operating Temp
(Electronics): -20 °C to 60 °C (-5 °F to 140 °F)
Approximate Shipping
Weight: 4.5 kg (10 lb)
Approvals: CE, CSA / UL / EN 61010-1
TRANSDUCER SPECIFICATIONS
Transducer: QZ02L submersible sensor measures level and velocity
Level Measurement
Range
Minimum Head: 25.4 mm (1 in)
Maximum Head: 4.6 m (15 ft)
Velocity Measurement
Range
0.031 m/s to 6.2 m/s (0.1 ft/s to 20 ft/s) and reverse flow to -1.5 m/s (-5 ft/s) in fluids containing bubbles or solids
with a minimum size of 100 microns and a minimum concentration of 75 ppm to act as acoustic reflectors
Operating Temperature: -15 °C to 80 °C (5 °F to 175 °F)
Exposed Materials: 316 stainless steel, epoxy resin, polyurethane
Transducer Cables: 7.6 m (25 ft) submersible polyurethane jacket, shielded, 3-coaxial
Transducer Mounting Kit: Includes MB-QZ stainless steel mounting bracket
Temperature
Compensation: Automatic, continuous

Without-construction open channels
Partially-Filled Pipes