Enraf Nonius 1600905, Руководство пользователя

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1600751-4D
Surge programs allow you to program sequential increases and decreases in current amplitude.
See fig 13.12 for details. Surge programs should not be confused with protocols:
•
A single treatment step of a protocol could contain a surge program.
The surge program options that are available depend on whether the 600-series is operating
with independent or linked channels.
With independent channel operation the surge programs run independently over both channels.
They can independently be enabled and their parameters can individually be set. When the
current channels are linked, the surge programs are also linked, which implies that their
parameters have identical values. The following options are available in this case:
•
Synchronous
•
Asynchronous
•
Alternating
In the Synchronous mode the surge pattern runs synchronously on both channels.
In the Asynchronous mode a delay time can be set between the start of the surge program on
channel 1 and channel 2.
In the Alternating mode the stimulation period (ramp-up + hold + ramp-down) on one channel
coincides with the rest period on the other channel.
To start the program push the Assist button and deactivate the pause symbol by selecting
Continue with the central controller and the confirmation this with confirmation button [6].
Parameters:
Ramp-up time , expressed in s, defines the time in a surge program during which the current is
increased from 0 to the adjusted level. See fig 13.122 for details. The ramp-up time can be
adjusted in increments of 0.1s.
Hold time , expressed in s, defines the time in a surge program during which the current is kept
at the adjusted level. See fig 13.122 for details. The hold time can be adjusted in increments of
1s.
Ramp-down time , expressed in s, defines the time in a surge program during which the current
is decreased from the adjusted level to 0. See fig 13.122 for details. The ramp down time can be
adjusted in increments of 0.1s.
Interval time , expressed in s, defines the time in a surge program during which the current is
kept at 0. See fig 13.122 for details. The interval time can be adjusted in increments of 1s.
Delay time , expressed in s, defines the time delay between the start of the surge program on
channel 1 and channel 2. See fig 13.122 for details. The delay time can be adjusted in
increments of 0.1 s.
11.2.12.b Current amplitude
The current amplitude is adjusted using the central controller [5].
Select the channel by pushing knobs [1] or [2].
The current amplitude can only be adjusted when the clock has been set.
With 4 polar interferential current waveforms the current amplitude operates on both channels
simultaneously. In this case a balance facility is available for the classical interferential current
waveform (see paragraph 4.3 for details).