C a i r d T e c h n o l o g y I n c .
C a i r d T e c h n o l o g y I n c .
C a i r d T e c h n o l o g y I n c .
C a i r d T e c h n o l o g y I n c .
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Phone 803-736-1289
Set Name
Set Name is used to enter a patient name. The navigation keys are used to navigate the
character screen. Once a character is highlighted it can be selected with the enter key. After
patient name is entered, select DONE and press enter to return to Setup menu.
Pacemaker
The VX3+ is designed to detect pulses generated by pacemakers. The recorder will detect
signals from .1 ms to 2 ms that have rise times faster than or equal to 100 microseconds and
amplitudes b-2 mV and +-500 mV. Pacemaker annotations are made if the signal is
detected on at least two channels. The pacemaker setting allows pacemaker detection to be
set to either on or off. The default is off for the HRV test.
NOTE: Patient lead placement and preparation are important factors to maximize
accuracy of pace pulse detection. Noise with the above characteristics may be detected
as pace pulse occurrences.
Sample Rate
Use the listings under sample rate to select desired ECG sampling rate. Sample rates of 128,
256, 512 and 1024 samples per second (sps) can be selected. Choose only sample rates
supported by your particular HRV playback system. Sample rate defaults to previous
recording session’s sample rate
.
Note: Sample rate choice for the HRV test is typically 256 samples per second (sps).
Record Length
Record length is used to select desired recording time. The choices are 24, 48, 72 and 96 Hrs.
Sample rate, battery life and SD card size may affect maximum recording length. If a selected
recording length is too long for the SD card size and selected sample rate the VX3+ will display
a warning message.
Note: The HRV test is short and the record length is not a factor.
Real Time Clock
The time is set from the Set Time menu. The time can be displayed in either 12-hour or 24-hour
format. The time display preference is selected from the preferences menu. The current time
flashes on the display screen approximately every four seconds during recording.
The date is set from the Set Date menu. The date can be displayed in MM/DD/YY or DD/MM/YY
format. The display format is selected from the preferences menu.