V Series Operating Instructions 29 - 17
Product Specifications ECG Performance
7. Sampling Speed
• 500 simples/s
• Accuracy: 1 V/LSB
• Skew between channels: 84 s
8. Recovery
ECG System recovers automatically from defibrillator overload within 8 seconds. Monitor recovers
automatically from defibrillator overload within 5 seconds.
9. AC Overload Protection
AC overload protection withstands 60Hz, 1V p-p for 10 seconds.
10. ESU Protection
None.
11. Electro Surgical Unit Noise Suppression
The peak noise during ESU operation for 3 and 5-Lead ECG System is less than ± 2mV from ECG
baseline when used with Mindray ESU cables.
12. ESU Withstand
3 and 5-Lead ECG Systems withstand stress from a High Frequency Surgical Unit operating at 300
Watts in cut mode and 100 Watts in coagulate mode.
13. Input Impedance
Single ended input impedance of ECG System is greater than 2.5M .
14. Lead Fault
Lead resistances ≤ 51K in parallel with 0.047µF capacitance unable to cause a lead fault condition.
Differential offsets ≤±300mV unable to cause a lead fault condition.
15. System Noise
System noise is less than 30 µV p-p, referred to input, through shielded 51K resistors in parallel with
47nF capacitors.
16. Overall System Error
Overall system error is 5% or 40µV, whichever is greater.
17. Gain Stability
The gain change one minute after energizing does not exceed 0.66 percent per minute. The total
change in one hour does not exceed ± 10 percent of any available fixed gain setting..
18. Multichannel Crosstalk
Multichannel crosstalk is a maximum of 2%.
19. Frequency Response
20. Impulse response
TABLE 29-16
ECG Type Bandwidth (-3db)
Monitor Diagnostic ST
3/5 Lead ECG 0.5 to 40 Hz 0.05 to 150 Hz 0.05 to 40 Hz
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