Siemens Pacemaker UM344-2 Manuel d'utilisateur télécharger pdf (Page 89)

UM344-2 ON-LINE AND OFF-LINE OPERATION

August 1995

5.1.3.3 Local Pushbutton

Damping Adjustment (Controller

OFF)

Adjusting the damping changes the value of the digital filter’s

time constant. An installed Digital Meter is recommended

for this procedure so that the damping values may be

monitored.

1. Activate the Pushbutton Damping Mode.

Simultaneously press and hold, for 5 seconds or more, the

FULLSCALE and ZERO pushbuttons, then release both

pushbuttons. Note the following.

• The Damping Mode is automatically de-activated

when a 1 minute "mode active" period times-out. If

a change is not made, the present value is retained.

• When both pushbuttons are pressed a "PB"

annunciator will appear on the Digital Meter. If the

pushbuttons have been held on for the required

minimum 5 seconds, when they are released, the

"PB" annunciator will remain on and the Digital

Meter will alternately display the letters "SEC" (for

seconds) and the present damping value in seconds.

2. Select a new damping value. The damping value choices

are: 0, 0.5, 1, 2, 5, 10, 20, 30, 60, 90, and 120 seconds.

Repeatedly press the ZERO pushbutton to step down or

the FULLSCALE pushbutton to step up through the list.

Select a time constant from the list that is closest to the

desired value.

3. Simultaneously press, then release, both pushbuttons. The

new value is stored in memory and normal operation is

restored.

4. Restore protective cover over pushbuttons.

5. To set damping without a digital meter activate the

pushbutton mode as described in step 1 above.

6. Repeatedly press the ZERO pushbutton at least ten times

to set the damping value to zero seconds.

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Siemens Pacemaker UM344-2 Manuel d'utilisateur Page 89