Section 2 - Service
2 WELCH ALLYN ATLAS MONITOR
SERVICE MANUAL 6200-43E REV. A
2.2 Repair Tests 2.2.1 Blood Pressure System Leakage Test:
Unit must not leak more than 5 mmHg in a 15
second interval while attached to a 100 cc
volume at test pressures of 50mmHg and
250mmHg.
Need:
100cc (+10/-0cc) test cavity
stopwatch
squeeze bulb
2.2.1.1 Connect Atlas to test 100cc volume and
Setra Gage as shown in Figure 2.3.1.1
2.2.1.2 Turn Atlas ON
2.2.1.3 Press Time and Date button to access
Options Menu.
2.2.1.4Press Lead Select button to select
Service Mode. Select Verify Manometer
2.2.1.5Pressurize the Atlas with squeeze bulb
to 50mmHg.
NOTE: Allow reading to stabilize for 15 seconds.
2.2.1.6Observe pressure for 15 additional
seconds. Unit should not leak more than
5mmHg during this time.
2.2.1.7Perform this process at 250mmHg
2.2.2 Dump Test:
Unit must be able to deflate a 500 cc volume
from greater than 260.0 mmHg to less than
15.0 mmHg in 10 seconds or less.
2.2.3 Manometer Accuracy Test
Internal temperature of the unit must be less
than 32.0 degrees Celsius before performing
test.
2.2.3.1 The primary transducer must be within +/-
0.75 mmHg at 0 +/-0.3 mmHg. The safety
transducer must be within +/-1 mmHg at
0+/-0.3 mmHg.
2.2.3.2 The primary transducer must be within +/-
1.5 mmHg at 50 +/-5.0 mmHg. The safety
transducer must be within +/-1.5 mmHg at
50 +/- 5.0 mmHg.
2.2.3.3 The primary transducer must be within +/-
1.5 mmHg at 150 +/-5.0 mmHg. The
safety transducer must be within +/-4.5
mmHg at 150 +/- 5.0 mmHg.
2.2.3.4 The primary transducer must be within +/-
Manometer Accuracy Test
BP Dump Test
BP Leak Test