Welch Allyn CP 50 Plus 12-lead resting electrocardiograph - User Manual - Manual (Page 49)

Item Specification
Electrodes Rigorously tested for conductivity, adhesion, and hypoallergenic qualities, and exceed all
AAMI standards
Power cable Meets or exceeds Type SJT.
Environmental operating
conditions
Temperature
Relative humidity
Atmospheric air-pressure
limits
+10° C to +40° C (+50° F to +104° F)
15 - 95% noncondensing (30 - 70% for printing)
700 - 1060 hPa
Environmental storage
conditions
Temperature
Relative humidity
Atmospheric air-pressure
limits
-20° C to +50° C (-4° F to +122° F)
15 - 95% noncondensing
700 - 1060 hPa
Protection against electric
shock
Class I, internally powered Type BF
Mode of operation Continuous
* If you print at a high gain setting, the waveform or calibration marks might be clipped. This clipping does not
comply with clause 51.103.1 of the IEC/EN 60601-2-51 standard. Use a lower gain setting to observe the full
waveform.
** Per AAMI EC11:1991/(R)2001 Diagnostic Electrocardiographic Devices, Section 3.1.2.1 Disclosure of cautionary
information/ performance characteristics paragraph c) Accuracy of input signal reproduction, the manufacturer
shall disclose the methods used to establish overall system error and frequency response. Welch Allyn has used
methods A & D, as prescribed in section 3.2.7.2 and 4.2.7.2 of this same standard, to verify overall system error
and frequency response. Because of the sampling characteristics and the asynchronism between sample rate and
signal rate, digital ECG systems such as the CP 50 may produce a noticeable modulating effect from one cycle to
the next, particularly in pediatric recordings. This phenomenon is not physiologic.
*** Disposable electrodes from Welch Allyn shall be used during paient defibrillation.
Specifications are subject to change without notice.
Directions for use Specifications 45