Verification Of Pneumatic System - Philips M3921A Service Manual

Verification of Pneumatic System

Basic Pneumatic
Leakage Test
Performance Verification
6. After the normal power-up sequence, verify the following monitor reactions:
a. The monitor displays a respiration rate of 120 ±3 breaths per minute.
b. The audible alarm sounds and
indicating respiration rate is above default upper alarm limit.
7. Press the ALARM SILENCE button
8. Decrease the respiration rate setting on the respiration simulator to 20 breaths
per minute.
9. Verify that the monitor displays a respiration rate of 20 ±3 breaths per minute.
The following tests, from "Basic Pneumatic Leakage Test" on page 19
through "Over-Pressure" on page 23, verify the functionality of the pneumatic
system of the monitor. All these tests, with the exception of the Basic
Pneumatic Leakage Test, require the use of an appropriate NiBP simulator.
Although the tests were designed to use the Bio-Tek BP Pump noninvasive
blood pressure simulator, any equivalent NiBP simulator with the same
internal test volume can be used. The internal test volume of the Bio-Tek
simulator is 250 ml.
The monitor must be placed in Diagnostic Mode, with the NiBP Test screen
active for each of the NiBP tests. For a detailed explanation of the Diagnostic
Mode, refer to Chapter 4, "Power-up Defaults Menu And Diagnostic Mode".
The purpose of this test is to verify the integrity of the NiBP Pneumatic
System after the monitor has been opened. This covers all external and
internal tubing and tubing connections. No simulator is required for this test.
In cases where the performance of the NiBP is in question or could have been
compromised during repair the complete set of NiBP performance tests
described in this service manual should be used (see test map, page 8, for
guidance).
1. Attach an NiBP cuff (adult model 40401C is recommended) and the NiBP
adapter cable to the monitor NiBP connector.
2. Wrap the cuff around itself and place on a table for the test, DO NOT place the
cuff on your arm.
Hardware and Software Tests
RESPIRATION RATE
. Verify that the alarm is silenced.
display flashes,
19