PCE-TDS 100H Ultrasonic Flow Meter
Measures liquid flow velocity in pipes and tubes with a diameter of 57 … 720 mm / ≈ 2 ... 28 in
Calculation of flow velocity according to the transit-time principle follows the equation:
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v = measured velocity
T1 = run time of the ultrasonic signal in the flow direction
T2 = run time of the ultrasonic signal against the flow direction
L = length of the ultrasonic wave
α = ultrasonic signal angle to the flow
The transit-time principle requires pipes to be full and have no bubbles and no particles.
Note: To transfer data to a computer, SOFT-PCE-TDS software is required. This software is sold separately - see accessories for details.
Each PCE-TDS series meter is assembled by PCE Instruments in Germany and and factory-calibrated (without any documentation). The reference display of the in-house test stand used by PCE for calibration has a valid DAkkS calibration certificate. This ensures traceability to the Physikalisch-Technische Bundesanstalt (PTB) German national standard. Please note that the meter's measured values depend on the pipe geometry, material and coating; the medium type, temperature and speed; and the sensor type and measuring method.
| Handheld 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 measured value ±3.5 % of measured value |
| Reproducibility | ±1.0 % of measured value |
| Media | All liquids with an impurity <5% and a flow >0.03 m³/h
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| Flow units | Cubic meter [m³] Liter [l] Gallon (USA) [gal] Imperial gallon (UK) [igl] Million USA gallon [mgl] Cubic foot [cf] Barrel (USA) [bal] Imperial barrel (UK) [ib] Oil barrel [ob]
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| Time settings | per day [/d] per hour [/h] per minute [/m] and per second [/s]
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| Data logger | 60,000 measurements |
| Interface | USB (for online measurement and reading of the internal memory) |
| Protection | IP 52 |
| Power supply | 3 x AA NiMH rechargeable battery / 2100 mAh (at full charge 12h running time) 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 oz |
| Sensor (only PCE-TDS 100 H) | nominal width DN 50 … 700, 57 … 720 mm / approx. 2 ... 28" |
| Temperature of liquid | -30 … 160 °C / -22 ... 320 °F |
| Dimensions | 50 x 45 x 45 mm / 1.9 x 1.7 x 1.7" |
| Weight | 260 g / 9oz |