Covidien Newport HT70, Operator'S Manual

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Startup Screen Navigation (Standby Condition Only)
Operator's Manual 4-5
4.4.1
Circuit Check Button
Perform the circuit check test each time the breathing circuit or exhalation valve is replaced. While
the ventilator is in standby condition, touch the
Circuit Check button and follow the instructions
on the screen. The test is a simple, two-step automated process.

Note:
The circuit check is not available during ventilation.
To perform a circuit check:
1.
Touch the Circuit Check button at the top of the touch screen, and follow the on-screen instructions.
Figure 4-3. Circuit Check Screens
2.
For Step 1, occlude the patient connection end of the circuit. (Do not use a test lung.)
3.
Press the Accept button to confirm and start the circuit check.
4.
For Step 2, open the patient connection end of the patient circuit.
5.
Press the Accept button to continue the circuit check.
6.
If the test passes, the message “Circuit Check PASSED Press Accept to Confirm” will be displayed.
7.
When the circuit check is completed, adjust patient settings as needed, and touch the Start Ventilation
button to begin ventilation.
8.
To cancel the circuit check and return to the Startup screen, press the Cancel button.
If the circuit check fails:
1.
The message “Circuit Check FAILED Press Accept to Continue” will be displayed.
2.
Press the Accept button to return to the Startup screen.
3.
Check that all breathing circuit connections are properly connected and leak free.
4.
Verify that the air oxygen entrainment mixer is not attached to the fresh gas intake port.
5.
Touch the Circuit Check button to redo the test.
If the circuit check fails repeatedly, try a different circuit.