Erbe ERBOTOM ICC 350 M, Instruction Manual

Page: 50 / 100

6-4
b) During every activation of the NEUROTEST device, the pulse generator is monitored for
unit-related output error. Here, every pulse is automatically monitored. If the amplitude of
a pulse is greater or less than the currently set amplitude, the unit produces warning signals.
If the amplitude of a pulse exceeds a maximum value, the output circuit is automatically
switched off immediately. If the amplitude was so high that the electronic fuse was triggered,
this error is indicated by error no. 90.
c) Every time after switching on the NEUROTEST device, the function of the electronic fuse
hardware is automatically tested. If an error in the electronic fuse hardware is determined,
this is indicated for a few seconds by error no. 91.
d) The maximum activation time for the NEUROTEST device is automatically limited for
reasons of safety. After 80 seconds of uninterrupted activity, the “time limit” visual signal
is illuminated and after a further 10 seconds, the Neurotest device is automatically
deactivated. However, the Neurotest device can be immediately reactivated after this.
6.4 Technical data
NEUROTEST device in the ERBOTOM ICC 350 T
Pulse waveform square
Pulse duration 50 ms
Pause length 550 ms
Pulse amplitude Step 1 = 05 mA
Step 2 = 10 mA
Step 3 = 15 mA
Step 4 = 20 mA
Step 5 = 25 mA
Constancy of the amplitude automatically controlled
Acoustic signals synchronous with the current pulses from at least
3 mA
Prevention of unit-related output error yes