M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 89
Performance Tests: Overview
6Performance Tests
Overview
This chapter includes all test procedures for diagnosing problems with the M2540A and assuring
its safe and accurate operation.
The following sections are in this chapter:
•“Electrical Safety Tests” on page89
•“PC Diagnostics” on page 105
•“Resident Self Tests” on page107

Electrical

Safety Tests

The tests described on the following pages are part of a comprehensive preventive maintenance
program. They detect abnormalities that could prove dangerous to patient or operator.
NOTES
•The system power supply is a self-contained unit that is safety-tested by its manufacturer. No
further safety testing is needed when the power supply is installed or replaced.
•After any service or maintenance, perform the required tests to assure that system safety
and functions are not compromised.
•Inspect power cords frequently, especially at their ends.
The following safety tests are described in this section:
•The Chassis to Ground Resistance test checks the entire system for electrical resistance
between the chassis and ground. See “Chassis to Ground Resistance Test” on page 90.
•The Ground Wire Leakage Current test checks the entire system for leakage on ground
leads. See “Ground Wire Leakage Current Test” on page 92.