User's Manual

Pacing and Sensing Functions

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ACC Status

It is possible to display information via the status of the Active Capture

Control (ACC) function. The following statuses are possible:

— OK

— OFF; the following is displayed: "---------"

— Deactivated

— Unconfirmed

— High pacing threshold

Shows that the ACC and ATM functions are activated and operating

properly.

OFF

Shows that ACC and ATM have been deactivated by the user.

Deactivated

After a maximum of 25 activation attempts per day, the function is

switched off by the implant, and the "Deactivated" status is displayed.

The programmer's printout displays the reason for the deactivation:

— Insufficient signal quality

— Stimulus is frequently ineffective

— Initial test was not successful

— Implant is in ERI mode

Unconfirmed

This status is displayed after the ACC function has been activated by

the user. Subsequently, the signal analysis and pacing threshold

search sub-functions are started. While these functions are running,

the status "Unconfirmed" is displayed.

Note: Re-interrogate the implant to confirm the status.

After the sub-functions have run successfully, "OK" is displayed. The

ACC function is working properly.

High pacing threshold

If the recorded pacing threshold is higher than the maximum ACC

amplitude you have set, it is not possible to conduct signal analysis or

measure the pacing threshold. In this case, the user will see – on the

programmer display – a message indicating the need to increase the

maximum ACC amplitude.