Performance verification
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
5-5
Follow these general guidelines when running the performance verification:
• If you note a problem during the performance verification, verify you followed the
procedures correctly before attempting to repair the ventilator.
• Verify you correctly entered the data on the ventilator UI by listening for the audible
confirmation of accepted settings and observing the appropriate display.
• When making ventilator settings, because of interrelationships between some ventilator
settings, you may not always be able to make all settings in the indicated sequence.
• Use the alarm silence and alarm reset keys to restore the ventilator to the test condition.
Using these keys may be necessary because of the nonstandard set of tubing connections,
which may cause apnea or other alarm conditions to occur.
• Except for the alarm silence and alarm reset keys, do not change the control settings
during these procedures, unless specifically instructed.
• Refer to Chapter 8 for required repairs. When repairs are completed, repeat the test.
When the test is successful, proceed with the next test, as applicable.
NOTE:
The following procedures do not verify the performance of accessories. Verify the
performance of accessories using the appropriate procedures in the applicable
operator’s or service manual.
Warning
Follow accepted safety procedures for electrical equipment when making connections,
adjustments, or repairs.
5.6.1 Electrical safety test and power-on self-test (POST) (Test 1)
Warning
If the ventilator fails an electrical safety test, do not proceed to the next electrical
safety test until you correct the problem and retest the unit.
The electrical safety test verifies ground resistance and leakage current are within safe limits.
Perform this test whenever you service the ventilator, per your hospital’s requirements. The
power-on self-test (POST), in conjunction with the extended self-test (EST), verifies overall
ventilator performance. POST is initiated automatically whenever power to the ventilator is
turned on. For additional information about POST, refer to Chapter 3.
1.
Verify ventilator power is off.
2.
Plug ventilator into electrical safety analyzer.
3.
Verify ground resistance is < 0.2
Ω
(including power cord supplied with ventilator)
.
These
test points are suggested: potential equalization point, one of the screws securing the
speaker, one of the screws on the options panel, the brass nut of the DISS oxygen inlet
fitting, and one of the unpainted catches on the lid (that mates with the buckle)
.
See
Section 5.7 1.
4.
Turn on ventilator power.
5.
Verify POST passes (indicated by unit displaying
Accept settings to start ventilation
).
See
Section 5.7 2.
6.
Verify forward and reverse current leakage to ground is <300
μ
A (100/115 V units) or
<500
μ
A (220/240 V units).
See Section 5.7 3.
Summary of Contents for Puritan Bennett 700 Series
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