neuroConn DC-Stimulator, User Manual

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Chapter 4 - Operating Basics
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If the stimulation current is below 150 µ A the impedance check does not work
correctly because of technical reasons. A long fade in value leads to a current
below 150
µ A for several seconds and most time stimulation is canceled.
Experienced data show that current changes of 0.5 mA per second do not
provoke pain for the patient.
Additional hardware
The DC- STIMULATOR can be extended by the additional components described below.
For more details, please ask your dealer or the manufacturer.
Trigger input
To start stimulation remotely or via other devices, the DC- STIMULATOR can be used with
an external trigger. The trigger mode can be adjusted by the software (see Software
Reference Manual: Trigger input).
The external trigger must be connected to socket “3” (ground) and socket “4” (signal) of the
DC-
STIMULATOR . An adapter for the use of BNC cables is enclosed (see Figure 18).
Figure 18: DC-STIMULATOR w ith connected
TRIGGER MODULE
The trigger input is galvanically isolated from the DC- STIMULATOR for reasons of safety.