Pulmonary Waveform Generator: PWG-33 and PWG-33BT
Pulmonary waveform generator is the most essential equipment for developing and testing spirometers and other flow/volume measuring devices.
PWG-33 is the ideal test equipment for R&D companies, for manufacturers and for authorized test laboratories as well.
PWG-33 has incomparable accuracy and fidelity in generating waveforms.
PWG-33 provides the highest peakflow with the fastest acceleration it is the real market leader in all aspects.
PWG-33BT provides full BTPS simulation for all types of exhaled curves
User defined waveforms
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Sinus waveforms
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Square waveforms
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Trapezoid waveforms
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Reproduction of any waveform defined by user
Main features:
All parameters of generated waveforms are fully traceable to National Standards
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All generated curves can be proportionally scaled
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Full automatic measurement of flow meter’s resistance
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Full support of human differential tests, according to ATS
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Evaluation of test results and error analysis, according to ATS
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Full automatic test sequence definable by the user
- Generated waveforms
- Technical data
- International references
Generated waveforms |
Standards |
Year of publication |
24 ATS Standard Volume(time) waveforms |
“Standardization of Spirometry” |
2005 |
Peak flow profile: A |
ISO 23747:2015 |
2015 |
Test profiles: C1 to C11 |
EN ISO 26782:2009 |
2009 |
Maximal volume |
10.00 liter |
Maximal flow rate |
20.00 liter/s |
Minimal rise time to flow rate16.00 l/s @ back-pressure 3kPa |
4.00 ms |
Maximal slew rate to flow rate16.00 l/s @ back-pressure 3kPa |
4000 l/s2 |
Maximal back-pressure of the flow sensor under test |
4.00 kPa @ 12 l/s |
Volume resolution |
0.3829 ml |
Volume accuracy |
0.2 % or 10 ml which ever is larger |
Flow accuracy |
0.5 % or 25 ml/s which ever is larger |
Time accuracy |
0.2 % or 5 ms which ever is larger |
BTPS simulation (BT - option): Temperature of expired air |
37 °C ± 2 °C (adjustable by the user) |
BTPS simulation (BT - option): Relative humidity of expired air |
92 % ± 5 % |
Pneumatic outlet |
ISO-30 medical taper |
PC interface |
USB 2.0 |
Mains voltage |
100 ÷240 VAC @ 50 ÷ 60 Hz |
Power consumption |
max. 350VA |
Size |
1100 * 370 * 265 mm |
Weight |
38 kg |
Our Pulmonary Waveform Generators are used by research and developing institutions and manufacturers all over the world
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BTL Medical Technologies (Czech Republic)
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Clement Clark (UK)
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Cyberscope (South Africa)
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Eolys (France)
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HSG-IMIT (Germany)
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IqTeq (South Africa)
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K-jump Health (Taiwan)
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Medical Research & Development (Spain)
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MedPond (USA)
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ORKI Notified Body on Medical Devices (Hungary)
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QRS (USA)