9. Operation in Different Modes
The information contained in this section will assist the user to become acquainted with the apparatus step by step.
9.1 in operating the apparatus, the following should be taken into consideration:
Attention! When the apparatus is switched on the simplest operation mode is activated, namely:
1. continuous treatment mode, i.e. application to the patient is continuous, the interval therapy mode is not activated;
2. variable impulse amplitude mode, i.e. a change in the treatment intensity will change both the duration of the rectangular part of the impulse and its amplitude;
3. the variable output frequency is set at a low level (60 Hz);
4. the variable output frequency mode (deviation from mean frequency - ±20%, change period - 0.5 min.);
5. intensity is set at zero, i.e. no application to the patient;
6. the automatic end of treatment mode is activated;
each time a button is pressed, a beep is emitted, which confirms that the button is operating properly;
the main control and indication mode
- variable intensity of treatment. 1-2 sec. after the mode has been changed, the apparatus automatically returns to the main control and indication mode. During a change in mode, the apparatus indication system shows the new mode (groups "F
if, during operation, it is necessary to press several buttons, the time between successive pressings should not exceed 1.5 sec. if this time is exceeded, the apparatus will automatically return to the main operation mode and indication (control and treatment level indication) and it will be necessary to repeat the procedure from the beginning. If it is required to change several modes, an interval of not less than 1.5 sec. should be observed between successive mode changes, i.e. changes should be implemented via the main operation mode and indication.
When the apparatus is switched off, all modes set by the operator are lost;
If no buttons are pressed for a duration of 10 minutes (for example, if the operator has forgotten to switch the apparatus off) the apparatus will automatically shut itself off in order to protect the battery;
If, during operation, a short double beep is emitted every 30 sec., this informs the operator that the batteries are becoming discharged and should be recharged or replaced;
If the apparatus does not switch on or, during operation, switches itself off, this means that the battery has become severely discharged. Further operation is not possible and the battery should be recharged or replaced.
9.2 operation procedure:
Switch on the apparatus by simultaneously pressing the "ON-OFF
" and "MAX
" buttons for 0.5-1 sec. A melody plus a slow flashing of the intensity indicator show that the power is on with the following settings:
Minimum intensity level (i.e. no output impulses), which is confirmed by a slow flashing of the intensity indicator;
The variable output impulse frequency mode (the constant frequency mode is not activated), with the following parameters: mean frequency - low (60 Hz), frequency change period - 0.5 min., maximum frequency variation - ±20% from mean level;
Continuous therapy mode (interval therapy mode is not activated);
Variable amplitude mode (a change in the treatment intensity will change both the duration of the rectangular part of the impulse whilst the amplitude remains constant at its maximum level, is not activated;
The automatic end-of-treatment mode is activated;
Treatment should be carried out in accordance with the appendix "Recommendations for the treatment of specific disorders."
Each time a button is pressed, a beep is emitted;
If it is required to observe the operation modes, press the "SELECT
" button and choose the group of indicators which will show the current mode:
" group "F
" - low (60 Hz) frequency deviation is set;
" group "F
" - high (140 Hz) frequency deviation is set;
" and "H
" group "F" - medium (100 Hz) frequency deviation is set;
" group "D
" - frequency deviation, i.e. the variable frequency mode is activated;
" group "D
" - no frequency deviation, i.e. the variable frequency mode is disabled;
" group "A
" - the variable amplitude mode is activated;
" group "A
" - the variable amplitude mode is disabled;
" group "R
" - the continuous treatment mode is activated, i.e. the interval therapy mode is disabled;
" group "R
" - the interval therapy mode is activated;
Changes in the treatment intensity are achieved by pressing the "MIN
" to reduce or "MAX
" to increase buttons. The frequency with which the intensity indicator flashes shows the intensity value (as the intensity increases the indicator flashes with increasing frequency);
To switch off the apparatus, press the "ON-OFF
" and "MIN
" buttons simultaneously for about 0.5-1 sec. A short melody will be played after which all indicators will go dead.
9.3 changing the operation modes:
in the continuous treatment mode, impulses are transmitted to the electrodes continuously. The interval therapy mode allows treatment to be applied in series of impulses with pauses between the series. The pause length is fixed at 1 sec. and the duration of the impulse series is 3 sec. At startup, the continuous treatment mode is activated;
if the low output impulse frequency is actived, impulses with a frequency of 60 Hz (indicator "L") will be transmitted, for the high output impulses with a frequency of 140 Hz (indicator "H") and for the medium output impulse frequency impulses with a frequency of 100 Hz (indicators "L" and "H"). when the apparatus is switched on the low frequency mode is automatically activated;
Deviation (variable frequency):
variable frequency mode parameters:
Maximum frequency deviation - ±20%;
Frequency change period - 0.5 min.
When the apparatus is switched on the variable frequency mode is automatically activated;
Variable and constant amplitude modes:
dependent on changes in the amplitude of the rectangular part of the impulse for different treatment intensities the apparatus can function in two modes:
Constant amplitude mode (for changes in treatment intensity only the duration of rectangular part of the impulse is changed, the amplitude remains constant);
Variable amplitude mode (for changes in treatment intensity both the duration of rectangular part of the impulse and the amplitude are changed). When the apparatus is switched on the variable amplitude mode is automatically activated;
Automatic end-of-treatment mode:
during stable treatment, i.e. without electrode movement, the apparatus will start to emit a short double automatic end-of-treatment mode signal about every 8 sec., which indicates that treatment may be stopped;
To change modes:
in order to change an operating mode, choose the required mode group by pressing the "SELECT
" button and within 1.5 sec., if necessary, the "SWITCH
" button, which will change the mode. The automatic end-of-treatment mode is activated by pressing the "SWITCH
" and "MIN
" buttons and disabled by pressing the "SWITCH
" and "MAX
9.4 Operation with detachable electrodes:
The apparatus is designed to allow additional detachable electrodes to be connected in parallel to the main electrodes. To do this the additional electrodes should be connected to the sockets on the main electrode supports (fig. 3). Be careful to observe the correct polarity, using the "+" and "-" marks on the electrode forks and on the apparatus' panel. In some cases, the lighter colored wire indicates that the electrode polarity is "+," and the darker colored wire indicates "-."
The additional electrodes are connected in parallel to the main electrodes and not instead of them. Take care
, since impulses will be transmitted to both the main and additional electrodes:
If, when changing the operating modes, you are in doubt as to whether the correct modes have been set, it is recommended to switch off the apparatus and set the modes once more.
If you are in doubt as to whether the apparatus is operating correctly, carry out the tests described in section 8.
9.5 Brief information on sound effects:
The sounds which accompany specific operating modes are given below:
A melody accompanies switching the apparatus on and off.
A short beep confirms that a button has been pressed.
A double short beep (about every 30 secs.) indicates that the battery charge is low
A short beep (about every 8 secs.) is the automatic end-of-treatment signal.