Ultrasonic Flow Tester PCE-TDS 100HMHS

Order no.: PCE-TDS 100HMHS

£ 2,026.00
£ 2,431.20
price ex. (VAT / delivery)
Delivery time: 1-2 working days
Ultrasonic Flow Tester PCE-TDS 100HMHS
According to the transit time difference method / To determine flow velocity and flow rate / Measuring method for liquids as homogeneous as possible
The ultrasonic flow tester is required as part of a control measurement or to quickly determine the flow in a pipeline and is therefore a portable / easy-to-install measuring system. The ultrasonic flow meter works according to the transit time difference method. The measuring principle of the flow meter is quite simple. Measuring a pipe at an angle with the flow takes less time than measuring against the flow.

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 ultrasonic flow meter can be used for measurements on metallic pipes, plastic pipes or rubber pipes.

Measurable liquids include: acetate, acetone, alcohol, ammonia, aniline, benzene, butyrate, chloroform, ethanol, ethyl alcohol, ethyl ether, ethylene glycol, freon R 12, petrol, glycerin, glycol, isobutanol, isobutane, isopentane, kerosene, linseed oil, methanol, methyl alcohol, engine oil, diesel oil, olive oil, peanut oil, paraffin oil, pentane, petroleum, 1-propanol, coolant, lubricating oil, silicone oil, transformer oil, trichlorethylene, 1, 1, 1 - trichloroethane, turpentine, distilled water and sea water.

- Ideal for retrofitting
- Installation without process interruption
- Easy construction
- Accurate and reliable
- No pressure loss
- Maintenance-free, no moving parts
- Wear-free
- Portable devices for control measurements

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

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 1800 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

1 x Ultrasonic flow tester PCE-TDS 100HMHS
1 x TDS-HM on-rail sensor set (50 ... 720 mm /  0.8 ... 4.2" pipe diameter)
1 x TDS-HS on-rail sensor set (20 ... 108 mm / 1.9 ... 28.3" pipe diameter)
2 x 5 m / 16.4 ft connection cables
2 x Velcro cable ties
1 x Mains power adapter
1 x Ultrasonic contact gel
1 x PCE tape measure
1 x Plastic case
1 x Instruction manual

: To transfer data to a computer, SOFT-PCE-TDS software is required. SOFT-PCE-TDS software sold separately - see accessories for details.