English
40
11.1 Build-up and fall times
The build-up and fall times measured effectively typically amount to
4 µs ± 2 µs
.
The build-up and fall times hardly depend on the adjusted pulse width (PW) and pulse frequency (PF).
They are to a lesser degree dependent on the current amplitude and on the select channel {KAN, CATH}.
Their greatest correlation is with the patient resistance (Rp). The upper limiting values apply for the
nominal resistance range [1 k
⍀
...12 k
⍀
]. For greater resistances, the times will increase as indicated in
the following illustration. At 50 k
⍀
, values exceeding 15 µs are possible (particularly for fall time).
12 Notes, warnings
If you have adjusted a stimulation current intensity > 0.06 mA or > 0.2 mA during operation in the
CATH mode and 0.00 mA are indicated in the display mode »Indication of the stimulation current
intensity actually fl owing through the patient«, the following circumstances may be on hand due to
the tolerances Full Scale causing this fault:
• there is no cable or a faulty stimulation cable connected,
• the electrodes are not attached correctly, or they are not attached at all,
• the electrical resistance of the patient tissue is too high.
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XS190174B MultiStim SWITCH GB.indd 40
XS190174B MultiStim SWITCH GB.indd 40
12.03.10 13:53
12.03.10 13:53
