The tone
Each generated pulse produces a
tick
. When a stimulation current
flows to the electrodes (greater than 2% of the maximum stimula-
tion adjustable), the
tick
becomes louder.
If the stimulation current flowing exceeds the current set, then
taking into account the measuring tolerance (see page 12 - Techni-
cal data - Measuring tolerance), the Stimuplex
®
HNS 11 institutes
an error message consisting of several tone groups of rapid
frequency (approx. 6 Hz). The device is no longer operational.
Each time a button is pressed a short tone is produced of a differ-
ent frequency as audible confirmation.
A
click
confirms that the instrument has been switched on.
Initial set up, maintenance, and general advice
Testing the Stimuplex
®
HNS 11 before an application
Switch on the Stimuplex
®
HNS 11 nerve stimulator by turning the
control knob clockwise from position
O
. A short click confirms that
switching on has taken place. When the self-test has been com-
pleted, the unit changes over immediately to the normal operating
mode. You can now select the frequency, pulse width and current
range according to the application required (see Section ”Operat-
ing the nerve stimulator”, p. 7).
With the set current indication (mA ), do not connect both elec-
trodes - check both current ranges (1 mA max and 5 mA max) up
to maximum.
Switch to actual current indication (mA
) - both mA ranges give
a should reading of + 0.00 mA, independet from the set current.
Connect the two electrodes (clip and plug) together: check the mA
value in each case up to the maximum. All mA values have a ”
+
”
sign in front of the display. As soon as current flows, the LED above
the display flashes in time with the stimulation current. The
~
symbol appears next to the
▲
and the
tick
becomes louder.
Set an actual current of approx. 0.30 mA and switch to set current
(mA ): the two values should be the same (see Page 12 - Techni-
cal data - Measuring tolerance).
If all adjustments have been found to be correct, your Stimuplex
®
HNS 11 is ready for application.
11
