Chapter 11

Diagnostics

Extended Self Test (EST)

EST verifies the overall functional integrity of the ventilator by testing all critical hardware subsystems and components. Perform EST between patients as part of preventive maintenance, a performance verification, or if the operational integrity of the ventilator is in question. EST is typically run by qualified trained personnel.

WARNING:

Never initiate EST while the patient is connected to the ventilator. The high

 

airway pressures and gas flows generated during EST can injure a patient.

WARNING:

Do not use a ventilator that has failed EST without verifying operational

 

readiness by other means. Doing so may place a patient at risk.

CAUTION:

If the optional external O2 sensor is in-line, it must be calibrated during

 

EST.

 

 

Equipment required to run EST:

Patient circuit

Plug for the patient wye

High pressure O2 source

Follow these steps to run EST:

1.Enter Diagnostic Mode as described “Entering Diagnostic Mode” on page 11-2.

2.Connect a patient circuit to the ventilator.

3.Press the EST button on the diagnostic screen (Figure 11-1).

4.Press START EST to begin EST.

5.Follow the prompts.

6.When EST completes successfully, press the OK button.

Hardware

The hardware function allows a trained service technician to operate critical components separately to help identify a faulty component in the event that the ventilator fails SST, EST, or performance verification testing. For more information on the Hardware function, see the Esprit/V200 Ventilator Service Manual, P/N 580-1000-02.

Software

The software function displays the ventilators serial number, software part numbers, and version numbers and the part numbers of other critical components.

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Philips V200 manual Hardware Software, 11-4

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