| Forced Parameters Measured |
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| Forced vital capacity: |
FVC, FEV.5, FEV1, FEV3, FEV6, FEV1/FVC, FEV1/FEV6, |
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FEV.5/FVC, FEV3/FVC, PEF, FEF25, FEF50, FEF75, FEF25-75, |
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FEF 75-85, FET, FEV1/FEV.5, FEV1/PEF, MIF50, FIVC, FIV1, |
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FIV1/FVC, FEV1/FIV1,PIF, MTT, PEV/PIF, Lung Age |
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| MVV: |
Br/min |
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| Relaxed Parameters Measured |
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| VC: |
VC, TV, ERV, IRV, IC, Ti, Te, Tt, Ti/Tt |
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| Maneuvers per patient: |
5 total; best test and last test highlighted |
| Interpretation: |
Selectable – Kory, Miller, ATS, NLHEP (Ferguson) |
| Predicted sets: |
Selectable – 14 Total |
| Ethnic correction: |
Selectable – % Actual, Caucasian, Hispanic, AfroAmerican |
| Language: |
Selectable – English or Spanish |
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| Measurement Scale (BTPS) |
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| Flow range |
0–16 L/sec |
| Volume |
0–10 L |
| Measurement method: |
Infrared Interruption via Digital Turbine |
| Dynamic flow resistance: |
<1.5 cm H20/L/sec @ 14 L/sec |
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| Precision of Measurements (BTPS) |
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| At highest volume: |
+/- 3% or 50 mL |
| At highest flow: |
+/- 5% or 150 mL |
| Time related precision: |
.5% |
| Volume resolution: |
<6 mL |
| Sampling frequency: |
50 Hz |
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| Hardware Specifications |
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| Storage capacity: |
1000+ studies |
| Keyboard: |
Alphanumeric LCD touchscreen |
| Communication: |
USB to printer and PC, RS232 |
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Optional: Bluetooth to PC |
| Dimensions: |
5.75" x 3.25" x 4.0" |
| Power supply: |
2 x 1.5 DC Alkaline or NiMH batteries |
| Weight: |
9 oz (250 g) |
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| Optional |
OSHA module |
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Flex Pulse Oximetry module and program |
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NiMH battery/charger pack |
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Calibration syringe |
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| Astra300™ is compatible with printers using USB connection and PCL6 drivers. |
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