Siemens SC 7000 Service Manual page 82

Service Manual
10.3 NBP Calibration
Procedure
10.4 Hardware
Overpressure
10.5 Pump
10.6 Interval Mode
66
1) Return to Main menu. Using hand bulb, increase pressure to 250 ±5
mmHg, if necessary, and allow it to stabilize for 1 minute.
2) Verify that pressure values displayed on monitor and pressure
indicator are within ±3 mmHg of each other.
3) Slowly release pressure in 50 mmHg increments. At pressures of 200,
150, 100, and 50 mmHg, verify that pressure values on monitor and
pressure indicator are within ±3 mmHg of each other at each level.
4) If NBP function fails calibration check, continue to Section 10.3.
Otherwise, if calibration check OK, go on to
Overpressure.
Note: For NBP calibration, the Pressure Indicator must be accurate to
±0.3 mmHg from 0.0 mmHg to 330.0 mmHg, and must be calibrated.
The calibration must be traceable to National Standards.
1) Remove left side panel from monitor. Refer to
Installing Side-Panels, in Chapter 3, for procedure.
2) With NBP Calibrate Mode in monitor set to ON, using inflation bulb,
increase pressure to 250 ±5 mmHg.
3) Clamp pneumatic hose (with hemostat or clamp) at inflation bulb.
4) Adjust R393 for monitor pressure indication that matches reading on
pressure indicator ±1mmHg.
Note: R393 is accessible through hole in rear housing below
MultiMed connector on left side of monitor.
5) Remove clamp and release pressure from system.
1) With monitor still in calibration mode, slowly increase pressure. while
observing pressure rise on monitor's screen.
Note: Pressure indicator accuracy of ±0.3 mmHg is not required for
hardware overpressure and subsequent NBP tests.
2) Verify that pressure suddenly drops at 300 ±30 mmHg.
3) Release all remaining pressure before proceeding.
4) Set patient category to neonatal and repeat steps 4 through 6, using
pressure limit of 157±8 mmHg for step 5.
1) Set Calibrate Mode in NBP parameter field menu to OFF.
2) Press NBP Start/Stop key.
3) Verify the following:
• Pressure increases and then decreases.
• Inflation and deflation pressures reported in message field.
• Message "NBP No Pulsation" exhibits at end of deflation phase.
• All digital readouts in NBP field are ***.
1) With NBP Calibrate Mode set to OFF, set Interval Time to 1 min.
2) Verify the following:
• A one-minute countdown bar graph appears at bottom of NBP
parameter box.
• NBP pump starts immediately when rotary switch is pressed in.
Siemens Medical Systems, EM-PCS, Danvers
NOT A CONTROLLED DOCUMENT
SC 7000 and SC 9000XL Patient Monitors
Section 10.4, Hardware
Section 5.1, Removing/
ASK-T898-03-7600
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