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Section 2-Functional Verification
Introduction
The functional verification procedures ensure proper operation of the Encore monitor and its
options. These procedures should be performed following module-level repairs, calibration, or
whenever there is a question about the accuracy or safety of the patient functions.
The calibration procedures in Section 3 should be used to return the monitor to operation within
its performance specifications. If the monitor does not pass the functional verification, or when it
is time to do a routine calibration, see Section 3.
Warning
Whenever the monitor is opened for calibration or repair, a risk (leakage) current
safety check as well as a dielectric strength integrity (hi-pot) test must be
performed as described in this section.
The Encore's service menu facilitates the functional verification. It has several features for testing
and verifying the NIBP (cuff) channel, display, invasive pressure channel, and printer. Refer to
Section 1 for information about the Service Menu.
Self Tests
Many functions, such as alarms, waveform and scale sizing, and printer control, are software
operations. During the monitor's power-up self-test, the integrity of all programming is checked
first. If software testing is successful, hardware tests are initiated. If all testing is successful, the
monitor is ready for use. (See Section 4 for information on error messages.)
Welch Allyn
Functional Verification
Introduction
Section 2
21
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