Mindray Passport 5-Lead, Service Manual

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Diagnostics and Calibration Procedure Calibration
7 - 10 0070-00-0420 Passport 5-Lead, 5L, LT, XG Service Manual
FIGURE 7-6 Setup for Pressure Calibration
a.
Connect the dummy cuff/test chamber and manometer as shown in Figure 7-9. (If a
test chamber is not available, an adult cuff wrapped around a towel may be
substituted to perform the pressure calibration.)
b.
Highlight the Pressure Calibration Test Option for the NIBP Diagnostics Menu and
press the SELECT key. The NIBP Diagnostics Menu is covered by the Pressure
Calibration Menu. This menu contains three items: Low Range Calibration, Mid
Range Calibration, and High Range Calibration.
c. Highlight one of the options and press the SELECT key to start the test.
The dummy cuff/test chamber (cuff) will inflate approximately to the target pressure
(50 mmHg for low, 150 mmHg for mid, and 250 mmHg for high). During the test
the pressure will be displayed in the pressure window and the message “Press
DEFLATE to End Test” will be displayed. After the target pressure is reached, the
pump will turn off and the pressure will be held until the user presses the DEFLATE
key.
d.
Compare the pressure window display on the unit under test with the reading on the
manometer for each of the pressure ranges. If the readings do not match, adjust VR1
on the NIBP Control Board. Adjust the calibration tolerance as listed below.
Calibration Specification
+/-3 mmHg - Low Range
+/-3 mmHg - Mid Range
+/4 mmHg - High Range
NOTE: The next two items (Error Journal and Exception Stack
Frame) are not intended for interpretation in the field. There
are hundreds of different messages which could be
recorded, and the messages vary with software revision.
Also, not all recorded messages indicate an error. If you
suspect a problem with the unit, the error journal and
exception stack frame should be printed out to the recorder
(if installed) and forwarded to a Datascope Service
Representative or Datascope Technical Support department.