Noninvasive Blood Pressure Calibration - Welch Allyn PROPAQ CS Service Manual

Service Manual

Noninvasive Blood Pressure calibration

1. Connect the cuff, digital pressure meter, bulb, and the Encore together with the cuff
calibration kit. Using T-connectors from the kit, connect the cuff, pressure meter, and
bulb.
2. Connect this NIBP test setup to the pressure transducer at PT1 on the Analog board.
3. Wrap the adult cuff around the black tube volume or a cylindrical object about the size
of an adult's arm.
4. Press SETUP > MORE > MORE > SERVICE > YES > NIBP TEST > NIBP CAL. Use
the bulb to inflate the system pressure to 250 mmHg, as read on the pressure meter.
Note
5. Watching the value of PR1 on the monitor screen, adjust RP2 until the service screen
reading matches the pressure meter.
NIBP TEST
PR
PR
DSC
LEAK
BLEED
6. Manually change the system pressure to check linearity tolerances at the following
levels:
Pressure (mmHg)
270
250
200
100
50
20
7 . Deflate the pressure to 0 mmHg.
8. Disconnect the tube from the transducer.
9. Set the oscilloscope to ac-coupled, bandwidth limited.
10. Connect the oscilloscope probe to TP47 on the Analog Board.
If testing takes more than 10 minutes, NIBP CAL will cancel. Press NIBP CAL
again and resume testing.
ADULT
PRINT FAULT
10:42:17
BATTERY: 8.3 VOLTS
CNTS mmHg DAC
578 249.4 130
1
338 259
2
1600
10 mmHg
DIAG:
mmHg/s PUMP:
PUMP AUTO CANCEL
TEST PUMP
Tolerance
(mmHg)
±
4
±
3
±
2
±
2
±
2
±
2
VALVE
0
0
secs
ZERO PREVIOUS
MENU
Calibration 51