Operator's Manual-AVEA - Static Content

Service Manual 37
Chapter 4 Calibration
(for software releases 2 and 3 only)
Introduction
The information in this section is intended for use by a factory trained service
technician. Before opening the console or removing assemblies to perform
calibration, a reference should be made to the Instruction Manual and Sections 1, 2,
3, and 7 of this Manual to assure that the ventilator is being properly utilized.
WARNINGS
• The calibration procedures contained in this section must be completed when
any part/assembly has been removed and/or replaced. Failure to do so could
result in ventilator malfunction and injury or death to the patient.
• After calibration and/or replacement of any assembly(ies), always perform the
Operational Verification Procedure (Section 3), then allow a "BURN-IN" period
and repeat the Operational Verification Procedure.
• Oxygen vigorously accelerates combustion. DO NOT use any gauges, valves or
other equipment that has been exposed to oil or grease contamination to avoid
violent ignition.
• Hazardous voltages exist within the ventilator. Always observe appropriate
safety precautions when working on the ventilator while the machine is
connected to an electrical power source to prevent possible accidental injurious
electrical shock.
• When high pressure gas sources are connected to the ventilator, always use
extreme caution when attempting to measure internal pressures. Abnormal
conditions may exist where measured pressures exceed the burst pressure of
the gauge, resulting in possible injury.
NOTE
The Operational Verification Procedure (OVP) is always performed prior to use of
this section.
CAUTION
• Before using any test equipment (electronic or pneumatic) for calibration
purposes (other than operational verification), the accuracy of the instruments
must be certified by a testing laboratory. The laboratory master test instruments
must be traceable to the US Bureau of Standards or equivalent. When variances
exist between the indicated and actual values, the calibration curves (proved by
the testing laboratory) must be used to establish the actual correct values. This
certification procedure should be performed at least once every six months. More
frequent certification may be required based on usage and environment.
L2342 Revision B November 2004