Siemens SC 7000 Service Manual

SC 7000 and SC 9000XL Patient Monitors Service Manual
ASK-T898-03-7600 Siemens Medical Systems, EM-PCS Danvers 65
7k9kXLSM.c4.CD_ROM.fm/04-99/kaupp
NOT A CONTROLLED DOCUMENT
10Non-Invasive Blood
Pressure Function
The SC 7000 and SC 9000XL measure non-invasive blood pressure (NBP)
according to the oscillometric method. Perform NBP characterization after
replacing the NBP Subassembly and also after replacing the Rear Housing
Subassembly (which includes the Connector I/O PCB). Use tools listed in
Table 4-1 on page 58 to check calibration of the pressure transducer. Note
pressure indicator required for NBP calibration.
Figure 4-1 NBP Calibration Check / Calibration Test Setup
10.1 System Setup and
Pneumatics Leakage
Test
Set up the NBP Calibration assembly (Art. No. 28 77 855 EE54U) as
illustated in Figure 4-1. Assure that pneumatic leakage is within
specifications before continuing to Section 10.2, Calibration Check.
1) Assure that patient category is set to Adult.
2) Set following in NBP parameter field menu:
• Interval Time - OFF
• Continuous Mode - OFF
• Calibrate Mode - ON. (Observe “NBP Cal. = 0 mmHg” appears.)
3 Clamp pneumatic hose (with hemostat or clamp) between T-connector
and monitor (
0
in Figure 4-1), and using pressure bulb, increase
pressure to 250 ±5 mmHg. Then clamp hose at inflation bulb (
@
in
Figure 4-1),and let pressure stabilize for 1 minute.
Do NOT run pump.
4) Observe pressure drop for an additional 5 minutes. Drop should be <2
mmHg in 5 minutes. If not, tighten all connections and fittings and
retest equipment for leakage. When leakage test OK, go on to step 5.
5) With both clamps removed, reinflate to 250±5 mmHg, if necessary,
and then reclamp hose at inflation bulb.
6) Observe pressure drop for 1 minute. Drop should be <4 mmHg. If not,
service monitor’s internal pneumatics system and retest system for
leakage. When leakage test OK, remove clamp at inflation bulb and go
on to Section 10.2.
10.2 Calibration Check
Note: You may have only 2 min. to perform this test if the pump has
run since the monitor was powered on, before the H/W deflation error
initiates. If this happens, you will need to reset the monitor. If the
pump has not run, however, there is no time limit.
1
2

Siemens SC 7000 Specifications

General

Brand	Siemens
Model	SC 7000
Category	Measuring Instruments
Language	English