6
Precautions
1.
Make sure that the electronic stimulator is turned off before connecting
this isolator.
2.
Never leave the device in an overload condition (output terminals short-
circuited) for five minutes or more.
3.
When the CURRENT ALARM switch is on, the constant-current range
over alarm indicates that the isolator output dynamic range is not sufficient
with regard to the load electrode resistance and cannot let through the
current at the set value. Should this happen, lower the current one step or
lower the load electrode resistance.
4.
When the CURRENT ALARM switch is on and no connection has been
made to the OUTPUT terminals, pay attention to the following.
• The alarm may occur even when the FINE adjuster is turned fully
counterclockwise.
• When the pulse width is set to 1 ms or lower, the alarm trigger level
changes between 0 to about 100
µ
A.
5.
Switching the STIM/OFF switch from OFF to STIM may lower the set
voltage. This is because the voltage in the OFF setting is not exposed to a
load while the STIM setting is and thus the voltage drops due to the internal
impedance.
6.
Direct current places a load on the isolator. Turn off the DC switch on the
electronic stimulator when it is not used for stimulation.
7.
Connect a short, unshielded, single wire lead electrode to the OUTPUT
terminals. Other cable types may degrade pulse characteristics and make
accurate stimulation impossible.
8.
While the electronic stimulator makes it possible to set the pulse width
(DURATION) down to 10
µ
s, note that the output response of the isolator
is shorter than the output pulse characteristics of the stimulator when making
short pulse width stimulation settings.
9.
When CURRENT MODE is set to 10
µ
A and the pulse width is 100
µ
s or
less, the displayed value at the OUTPUT MONITOR and the signal from
the MONITOR OUT connector are lower than the actual stimulation output.
