p/n 18603-001, Rev. C LTV
®
1200/1150 Ventilator Service Manual Page 6-7
Airway Pressure Calibration
To perform the airway pressure calibration, you will need the following equipment:
• Calibration Syringe assembly
13
, P/N 11471, with a T-connection to a pressure
manometer (0-90 cmH
2
O).
Leak Test the Hi & Low Flow Transducer Ports
1) Connect the tubes from the calibration syringe assembly test fixture to the High and
Low Flow transducer ports on the right side of the ventilator as shown above.
2) Using the test fixture manometer as the pressure measurement instrument, apply 50
– 55 cm H2O pressure to the ventilator with the syringe.
3) Pinch off the pressure supply tube near the syringe to seal the supply of pressure.
Observe any downward change in pressure on the manometer.
Requirement: The change in pressure in 1 minute shall be ≤ 1.0 cmH2O
4) Record the data on the Calibration Worksheet
5) Disconnect the tubes from the ventilator ports. Open the pinch clamp on the
pressure supply tube to the syringe.
13
The Calibration Syringe is available separately, or as part of the Maintenance Calibration Kit, P/N 11566.
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