The stronger the current gets, the longer you need against it and the faster you get with it. The difference between the flow times with the flow or against it therefore depends directly on the flow speed of the river. The flow meter uses this effect to determine flow velocity and flow. Electro-acoustic transducers ("Piëzo effect") send and receive short ultrasonic pulses through the medium flowing in the pipe.
The transducers are offset in the longitudinal direction on both sides of the measuring pipe. The non-destructive working sensors are placed on the pipe and fastened e.g. by means of a cable tie. The display shows the flow rate within a short time. The flow meter can be used for measurements on metallic pipes, plastic pipes or rubber pipes.
Note: To transfer data to a computer, SOFT-PCE-TDS software is required. SOFT-PCE-TDS software sold separately - see accessories for details.
| Hand-held device measuring range | -32 ... +32 m/s |
| Resolution | 0.0001 m/s, 0.00033 ft/s |
| Accuracy for DN ≥ 50 mm: for DN < 50 mm: |
±1.5% of the measured value ±3.5% of the measured value |
| Reproducibility | ±1.0% of the measured value |
| Media | All liquids with an impurity < 5% and a flow rate >0.03 m³/h
|
| Units of flow | Cubic meter [m³] Liter [l] Gallon (USA) [gal] Imperial Gallon (UK) [igl] Million USA Gallons [mgl] Cubic feet [cf] Barrel (USA) [bal] Imperial Barrel (UK) [ib] Oil Barrel [ob]
|
| Time setting |
per day [/d] per hour [/h] per minute [/m] and per second [/s]
|
| Data logger | 60,000 measuring points |
| Interface | USB (for online measurement and readout of the internal memory) |
| Protection class | IP 52 |
| Power supply | 3 x AA NiMH batteries/ 2100 mAh (12 h running time when fully charged) 100 … 240 V AC 50/60 Hz |
| Dimensions | 214 x 104 x 40 mm / 8.4 x 4.1 x 1.5" |
| Weight | 450 g / 15.9 oz |
| Sensor | nominal width DN 20 ... 108, 50 ... 720 mm / 0.8 ... 4.2, 1.9 ... 28.3" |
| Liquid temperature | -30 … 160 °C / -22 … 320 °F |
| Dimensions | 50 x 45 x 45 mm / 1.97 x 1.77 x 1.77" |
| Weight | 260 g / 9.2 oz |
Note: Calibration certificates are issued specifically for the customer and are excluded from the right of return.
