GE Eagle 1000, Инструкции по обслуживанию

Страница: 25 / 148

GE Medical Systems EAGLE 1000
Page 25
Information Technologies
Servicing Instructions 227 468 01 Rev. G
Cuff inflation pressure
adult 160 mmHg
neonate 100 mmHg
Adaptive cuff inflation pressure
After a measurement the inflation pressure of the subsequent measurement depends on
the previous measuring result: it is either 1.8 times the previous mean pressure or 15%
above the previous inflation pressure (whichever is less).
Measurement cycles
Selectable intervals for automatic measurement cycles:
2, 5, 10, 15, 30, 60 minutes
Measuring accuracy
P
sys
/P
dia
<= 8 mmHg, 1st standard deviation
• error limits for cuff pressure via the pressure transducer ±3 mmHg
Measurement duration
adult: 90 seconds max.
neonate: 70 seconds max.
typical duration for undisturbed measurement: 30 seconds
Technical inspection, calibration
Technical inspection must be carried out once a year, calibrations every two years (refer to
section 3 “Maintenance and technical inspection”).
2.1.9 Invasive blood pressure
Signal inputs
2 connections which are both isolated from ground (type CF according to IEC 601-1) for
pressure transducers with ohmic strain-gauge bridge, diagonal resistance of 200 Ohms to
10 kOhms with a sensitivity of 0.005 mV/mmHg per V of supply voltage:
• supply voltage for transducer:
5 volts DC
At 50 and 60 Hz:
• differential input impedance > 100 kOhms, real component 500 kOhms
• common-mode input impedance > 100 kOhms
• common-mode rejection > 60 dB up to 60 Hz