THOR PWG-33 Pulmonary Waveform Generator
General description
THOR PWG-33 provides waveforms with pre-set volume and flow values for calibrating respiratory monitoring apparatus and other equipment measuring flow and volume. Waveforms generated by PWG-33 and the evaluations of test results are fully compatible with the American Thoracic Society specifications released on 11 November 1994 and the EN 13826:2003 European Standard.
ISO 9001 and ISO 13485 Quality Management System guarantees the reliability of development and manufacturing. All the parameters of generated waveforms are traceable to National Standards.
Generated wavefront
- 24 ATS Standard Volume(time) waveforms
- 26 ATS Standard Flow(time) wavefront
- 13 Standard waveforms according to EN ISO 26782:2009 Annex C
- 10 Standard waveforms according to EN ISO 23747:2009 Annex C, profile A
- User configured waveforms according to EN ISO 23747:2009 Annex C, profile B
Main features
- BTPS simulation with heated and humidified air for all ATS standard waveforms
- Full automatic measurement of flow meter’s resistance
- Full support of human differential tests, according to ATS
- Evaluation of test results and error analysis, according to ATS
- Full automatic test user definable sequence
- Printed test report
Block diagram
Item’s description
| Item | Description |
| 1 | Calibration ports |
| 2 | Control button |
| 3 | Remote control port |
| 4 | USB plug |
| 5 | Pneumatic outlet |
| 6 | Humidifier connected to the BTPS inlet |
| 7 | Two way (BTPS) valve |
| 8 | Heated syringe |
| 9 | Circuit board |
| 9a | Main circuit with the internal microcontroller |
| 9b | Separate calibration circuit |
| 10 | Scheider Electric SD326 stepper motor controller |
| 11 | Berger-Lahr stepper motor |
| 12 | Photo interrupters: end-position sensors |
| 13 | Photo interrupters for kinematic test |
| 14 | Timing belt driving the piston |
Specification
| PNEUMATIC INFORMATION | |
| Pnaumatic outlet | ISO-30 Medical taper Male OD=30,2 mm Basic taper 1:20 |
| Maximal back-pressure of the object being tested | 4.0 kPa at 12 l/s |
| Volume resolution | 0.345 ml |
| Maximal volume | 10.00 l |
| Maximal flow rate | 20.0 l/s |
| Minimal rise time to flow rate 16 l/s at black-pressure 3 kPa | 4 ms |
| Maximal slew rate to flow rate 16 l/s at back-pressure 3 kPa | 4000 l/s2 |
| ACCURACY | |
| Volume | 0.2 % or 10 ml which ever is larger |
| Flow | 0.3 % or 15 ml/s which ever is larger |
| Time | 0.02 % or 1 ms which ever is larger |
| Temperature of air with BTPS simulation | 37 °C ± 1 °C |
| Relative humidity of air with BTPS simulation | 92 % ± 5 % |
| Distance between photo interrupters for verification (nominal value) | 127 mm |
| TRANSPORTING CONDITIONS | |
| Temperature | -30 °C ÷ +50 °C |
| Relative humidity | 10 % ÷ 100 % (non condensing) |
| Ambient pressure | 500 ÷ 1060 mbar |
| STORAGE CONDITIONS | |
| Temperature | 0 °C ÷ +50 °C |
| Relative humidity | 10 % ÷ 85 % |
| Ambient pressure | 500 ÷ 1060 mbar |
| OPERATING CONDITIONS | |
| Temperature | +10 °C ÷ +35 °C |
| Relative humidity | 30 % ÷ 75 % |
| Ambient pressure | 700 ÷ 1060 mbar |
| ELECTRICAL DATA | |
| Nominal voltage | 115 or 230 VAC |
| Mains voltage tolerance at 115 VAC | 100 ÷ 130 VAC |
| Mains voltage tolerance at 230 VAC | 170 ÷ 240 VAC |
| Frequency | 50 / 60 Hz |
| Power consumption; PWG-33 | max. 25 VA |
| Power consumption; PWG-33/BT | max. 770 VA |
| MECHANICAL PROPERTIES | |
| Size without humidifier | 1100 mm x 370 mm x 265 mm |
| Weight | 38 kg |
| MINIMAL PC CONFIGURATION | |
| Operating system | Windows XP, Vista 7 |
| Computing capacity | See operating system recommendations |
| Platform | booth 32 and 64 bit supported |
| Free USB 1.1 or 2.0 compatible port | 1 port |
