Portable Ultrasonic Flowmeter

Description

Consumed Energy Calculation

A function to obtain thermal energies exchanged via fluid used in air-conditioning systems. The transmitter calculates the consumed thermal energy based on the forward flow temperature, the return flow temperature, and the flow rate.

Fluid	Uniform liquid through which ultrasonic wave can propagate (water, distilled water, alcohol, etc.)
Pipe inner diameter	13–6000 mm (depends on detector)
Fluid temperature	-40°C to +200 °C (depends on detector)
Velocity	0 to ±32 m/s (minimum ±0.3 m/s)
Accuracy	±1.0% of rate (depends on flow rate)
Output cycle	1 s
Path	1 path, transit time method
Display	Color LCD with back light
Analog output	4–20 mA DC (1 point)
Analog input	4–20 mA DC/1–5 V DC (2 points)
Power supply voltage	Built-in battery, (12 hours of continuous operation)
Enclosure	IP64
Dimensions	210 × 120 × 65 mm
Weight	Approx. 1kg
SD card (option)	Data of 2-years worth can be stored in 512 MB card.
Serial communication	Data in SD card (instantaneous values, integrated values) can be transmitted to PC USB cable: maximum 3 m
Functions	Damping time constant (0–100 s) Instantaneous value display (10 digits) Various flow rate unit settable Total value display (10 digits) Various flow rate unit settable Consumed heat quantity computation Self diagnosis (battery voltage drop and received waveform from the sensor) Flash memory (parameters of pipe, fluid, sensor, etc) Number of registration sites: 32 Zero point adjustment (by setting/clearing zero) Graph view, waveform view Bi-directional flow measurement Low-flow cutoff (0–5 m/s)
Option	Printer: screen hard copy, periodic printing and logged data printing Detector for flow velocity profile measurement: displays flow velocity profile of instantaneous value and average value