ISO-STIM 01B User Manual
version 1.8
page 6
(1)
POWER LED
LED indicating that the ISO-STIM 01D is powered on.
(2)
POWER ON/OFF switch
Switch to turn POWER of the ISO-STIM 01D ON or OFF, respectively.
(3)
DURATION (ms) digital potentiometer
Potentiometer that sets the duration of the stimulus generated by the built-in timing unit.
(4)
OPERATION MODE (BIPOLAR/UNIPOLAR) switch
(5)
AMPLITUDE 10-turn potentiometer
Potentiometer that sets the amplitude of the stimulus generated by the internal timing unit. The
maximum range is selected with the OUTPUT rotary switch (
#15
).
(6)
+/- POLARITY switch
Switch for setting the polarity of the stimulus.
(7)
OVER + LED
LED indicating that the amplifier is 10% below its positive limit (limit is ±100 V in VOLTAGE
OUTPUT MODE). In CURRENT OUTPUT MODE the limit (±100 V) is set by the
corresponding voltage at the electrode due to Ohm’s Law [V = I*R]), i.e. this control indicates
during an experiment in CURRENT OUTPUT MODE that the electrode resistance increases
and the amplifier is not be able to provide the current which is set if the electrode resistance
increases further.
(8)
STIM LED
LED indicating the application of a voltage or current stimulus.
(9)
OVER – LED
See (
#7
).
(10)
CAP. COMP trim pot
The CAP.COMP. potentiometer compensates for the input capacitances in isolated CURRENT
output operation only. Capacity compensation is achieved by turning the potentiometer with a
small screw driver clockwise, until the current signal at the oscilloscope is as square as possible.
Important
: If the CAP.COMP. is overcompensated in CURRENT MODE, the stimulus isolator
will ring and not work properly!
(11)
CHASSIS connector
Jack linked to the CHASSIS. The green banana connector of the optional cable (ISO-CAB) is
connected here.
