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The Strength-Duration Curve (SD Curve) ..............26 INTENDED USE ULTRASOUND THERAPY AND STATUS .......... 27 Ultrasound ........................27 5.1.1 Indications/Contraindications and Adverse Effects for Ultrasound ............27 5.1.2 Parameters ............................28 Combination Therapy ....................28 StatUS Therapy ......................28 INTENDED USE VACUUM..................... 30 INTENDED USE MYOFEEDBACK ................
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10.3 StatUS ..........................38 10.3.1 Connecting the StatUS- StatUS applicator / ultrasound treatment head ..........38 10.3.2 Applying the fixation ..........................39 10.3.3 Applying the gel pad (gel cushion)......................39 10.4 EMG ..........................40 10.4.1 Connections ............................40 OPERATING INSTRUCTIONS ..................41 11.1 Operator Controls ......................
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12.2.1 Error code ............................. 85 12.2.2 Insufficient or no output current ......................85 12.3 Technical Maintenance ....................85 12.4 End of life ........................86 ILLUSTRATIONS ......................87 13.1 Biphasic Pulsed Current TENS ..................87 13.1.1 Asymmetrical ............................87 13.1.2 Asymmetrical Alternating ........................87 13.1.3 Burst Asymmetrical ..........................
1 Product Description The 6-series is based on a modular system. This means that a number of modules are integrated within a single structure. The base module consists of a user interface and an Endomed electro therapy module, which has two independent current channels. The 6-series offers protocol driven operation, providing either factory or user defined sequences of treatment steps.
Vacuum electrodes make good contact with the skin which means that effective use is made of the whole electrodes area. The massage effect resulting from the pulsed vacuum ensures a good flow of blood through the skin under the electrodes. This reduces the resistance of the skin and increases the effectiveness of the stimulating current.
2 Foreword 2.1 This manual This manual has been written for the owners and operators of the 600-series. It contains general instructions on operation, precautionary practices, maintenance and parts information. In order to maximize the use, efficiency and lifespan of your unit, please read this manual thoroughly and become familiar with the controls as well as the accessories before operating the unit.
3 Precautionary Instructions In this section general Warnings and Precautions are listed, that you should be aware of when using the 6-series. See also chapter 4 for Warnings and Precautions that are application specific. 3.1 WARNING: Federal law (USA only) restricts this device to sale by, or on the order of, a physician or licensed practitioner.
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contraindications, warnings and precautions. Consult other resources for additional information regarding the application of electrotherapy. 1600751-4D...
3.3 Symbols Follow the instructions in the Instructions for Use. It is important that you read, understand and observe the precautionary and operating instructions Warning or Caution: Indicates a hazardous situation which, if not avoided, could result in: a. Death or serious injury to the patient (or) b.
4 Intended Use: electrotherapy 4.1 Pain Management Pain Management is the use of electrical stimulation for pain relief. 4.1.1 Indications/Contraindications Indications: • Symptomatic relief of chronic, intractable pain. Management of pain associated with post-traumatic or postoperative conditions. Contraindications: • This device should not be used for symptomatic pain relief unless etiology is established or unless a pain syndrome has been diagnosed.
4.2 Muscle Stimulation Muscle Stimulation is the use of electrical stimulation to treat muscle dysfunction. 4.2.1 Indications/Contraindications and Adverse Effects for Muscle Stimulation Indications: • Relaxation of muscle spasms. • Prevention or retardation of disuse atrophy. • Increasing local blood circulation. •...
• Skin irritation and burns beneath the electrodes have been reported with the use of therapeutic electrical stimulation. 4.2.2 Current Waveforms For muscle stimulation the 6-series offers the current waveforms described in paragraphs 4.3.3 - 4.3.6. These waveforms are often applied in combination with a surge program, which consists of a sequence of exercise and rest periods.
4.3.1.b Isoplanar Vector The isoplanar vector technique is intended to increase the area where effective stimulation occurs. Amplitude modulation occurs in the equipment and a special phase relation between the two channels ensures a 100% modulation depth between the four electrodes in all positions.
Parameters: Carrier frequency, expressed in kHz, is the base frequency of the alternating current. Beat frequency, expressed in Hz, defines the channel frequency difference in classical interferential mode and the rate at which the amplitude is internally modulated in the vector modes.
4.3.2.b Burst Asymmetrical and Burst Alternating Asymmetrical The burst biphasic and burst biphasic alternating asymmetrical pulsed currents are variations to their non burst counterparts, in which the continuous train of pulses is interrupted by pulse pauses. See fig 13.1.3 and fig 13.1.4 for details. A burst frequency can be set for treating chronic pains, where the use of continuous stimulation with a low pulse frequency would be too painful.
4.3.2.d Burst Symmetrical The burst biphasic symmetrical pulsed current is a variation to its non burst counterpart, in which the continuous train of pulses is interrupted by pulse pauses. See fig 13.1.3.6 for details. A burst frequency can be set for treating chronic pains, where the use of continuous stimulation with a low pulse frequency would be too painful.
Modulation Program defines the time and sequence in which the frequency will sweep through the Frequency modulation range. See for the available Modulation programs fig 13.11 – 13.11.3. Surge Program can be used to adjust repeated sequences of contraction and rest periods. See paragraph 11.2.11.a6 for details.
4.3.6 High Voltage This current type has a twin peak monophasic waveform with a fixed duration of 64 µs between the two voltage peaks. The amplitude is adjusted in volts rather than in mA. The short rise time and short duration of each voltage peak (approximately 7 µs) is well suited to nerve stimulation and efficient discrimination between sensory, motor and pain responses.
The following variations are available: 4.3.7.a MF (Monophasé Fixe) Is a single phase rectified sinusoidal current with a frequency of 50 Hz. See fig 12.6.1 for details. MF is a vibrating waveform that easily induces contractions. 4.3.7.b DF (Diphasé Fixe) Is a dual phase rectified sinusoidal current with a frequency of 100 Hz.
CAUTION: • The Direct Galvanic Current is a monophasic current that produces electrolysis by- products. These by-products can result in burns beneath the electrodes. Always use properly moistened sponge / electrode combinations to absorb these by-products during treatment. See paragraph 10.1.5 for details. 4.3.9.b MF Interrupted Galvanic Current The medium frequency interrupted galvanic current is a monophasic rectangular waveform with a pulse frequency of 8000 Hz and a duty cycle of 90%.
4.3.11 Träbert, 2 – 5 Current The 2-5 or ‘Ultra-Reiz’ current was introduced by Träbert. It is often used to treat headaches and neck pain. The 2-5 current is a faradic rectangular pulsed current with a phase duration of 2ms and a phase interval of 5ms. These settings are the default settings for the faradic rectangular current waveform and result in a pulse frequency of approximately 143 Hz.
5 Intended Use Ultrasound therapy and StatUS 5.1 Ultrasound Ultrasound is a mechanical energy consisting of high-frequency vibrations applied by means of an ultrasound treatment head. These vibrations pass through the tissue of the body and are gradually absorbed and transformed into heat. The resulting temperature increase triggers biological changes to occur in the tissue for the relief of pain, relaxation of muscle spasms and reduction of joint contractures.
• Treatment of the thyroid, as well as lymph nodes in the neck, may expose the patient to as yet undetermined effects inasmuch as the safety of such treatments has not yet been established. Potential Adverse Effects: • Cataracts. • Male sterility.
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Duty Cycle Modulation Duty cycle can be described as the proportion between the duration of the pulse and the duration of the interval. The duty cycle is expressed in a percentage (%). The device is working in a continuous modus when the duty cycle is 100%. Duty cycle modulation implies that the duty cycle fluctuates automatically in a flowing pattern.
6 Intended use Vacuum The continuous and pulsed vacuum module allows vacuum electrodes to be positioned quickly and easily. Furthermore, it is extremely simple to switch between treatment with vacuum electrodes and treatment with flexible rubber electrodes. This makes the vacuum module an ideal aid for electrode placement.
8.5 Standard Accessories Vacuum 684V 4 x 3444507 Vacuum electrode cable red 4 x 3444508 Vacuum electrode cable black 3444078 Dummy 4 x 3444503 Vacuum electrode Ø 60mm, set of 2 pc. 2 x 3444505 Sponges Ø 65 mm for vacuum electrodes Ø 60 mm , set of 4 pc. 8.6 Standard Accessories StatUS 1601911 StatUS applicator / ultrasound treatment head, 1 and 3 MHz, ERA 0.8 cm²...
9 Installation 9.1 Units without a Vacotron module • Remove the 6-series unit and any additional items ordered from the carton and inspect for damage that may have occurred during shipment. • Place the unit on a desk or EN-Car. Ensure that there is sufficient air flow below the unit (do not place the unit on a table-cover).
10 Application Notes 10.1 Electrotherapy CAUTION: • Connection of accessories other than the ones specified by the manufacturer can adversely affect the safety of the patient and correct functioning of the equipment, and is therefore not permitted. • To prevent infection, electrodes and sponge pads should not be used on broken skin. 10.1.1 Before treatment •...
10.1.3 Vacuum electrodes There is a choice of large and small electrodes. The areas of the electrodes correspond to those of the 4 x 6cm and 6 x 8cm flexible rubber electrodes. The vacuum electrodes are sufficiently flexible to ensure optimum contact with the skin, but rigid enough to prevent any changes in the contour of the part being treated, allowing full advantage to be taken of the massage effect of the pulsed vacuum.
10.1.7 Connection and disconnection reactions Constant Current (CC) output characteristics may cause unpleasant connection and disconnection reactions if the electrodes are not securely placed or lose contact with the skin. Make sure the current amplitude is set to 0 mA when you apply or remove the electrodes. Use the Constant Voltage (CV) output mode with dynamic electrode applications.
CAUTION: • The ultrasound treatment head is a precision instrument. Great care has been taken during the development and in production to obtain the best possible beam characteristics. Rough treatment (jarring or dropping) can adversely affect these characteristics, and must therefore be avoided. 10.2.5 After treatment •...
10.3.2 Applying the fixation Press the fixation included across the treatment head (see photograph hereunder) Make sure that the ridge on the inner side of the fixation [A] falls in the groove of the StatUS applicator / ultrasound treatment head [B] 10.3.3 Applying the gel pad (gel cushion) Place a gel pad in the ring (see photograph).
10.4 EMG 10.4.1 Connections : EMG channel 1 : Reference cable : EMG channel 2 : Pressure channel Headphone connector, (backside of the unit) for the raw EMG signal The connection with the MyoComBox is wireless via Bluetooth. This is only possible if the X module is integrated.
11 Operating Instructions 11.1 Operator Controls (See jacket flap) Standby button With this push button the 6-series is switched between On and Standby. Pushing this button for more than two seconds will reset the device. Connector for mains cable To disconnect the device from the power line, unplug the power cord. Type number/warning sticker Provides information on the apparatus, such as type and serial number, as well as connection data such as mains voltage and maximum current consumption.
CAUTION: • Connection of accessories other then the ones specified by the manufacturer can adversely affect the safety of the patient and correct functioning of the equipment, and is therefore not permitted. For combined applications only use Enraf-Nonius type BF equipment.
11.2.2 Navigation and display organization The display is organized as a spreadsheet of four sheets, one for each channel. The channels refer to the application modules accessible at the front of the unit. A sheet can be selected with the channel selection button [1, 2, 3, 4] and shows the parameters belonging to that channel. Each sheet has a tab, in which the output amplitude of that channel is displayed, as well as other important information, such as the remaining treatment time.
11.2.4 Therapy Wizard The Therapy Wizard Therapy Wizard guides you through a wide range of treatment suggestions. You select Body Part either Body Part or Applications Application. Under the personal protocols you can Protocol List retrieve your personal Personal Protocols stored protocols.
The display is showing the Pain Management select protocol and pre- (Sub)luxation acromioclavicular High programmed parameter setting. Premodulated Use the Assist button [7] Treatment Time 20:00 for: • Therapy information Carrier Frequency 6.0 kHz • Electrode placement by Beat Frequency 100 Hz picture...
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• Select the desired Home application with the Electrotherapy controller [5] and enter with the confirmation Pain Management button [6] Muscle Stimulation All Current Waveforms Diagnostics Therapy Wizard • Select the desired current with the central Pain Management controller [5] and enter Premodulated with the confirmation button...
11.2.5.a Diagnostics Electrotherapy • Select Diagnostics application with the Pain Management controller [5] and enter Muscle Stimulation with the confirmation button [6] All Current Waveforms • Select new session Diagnostics • Select channel 1 or 2. Channel 2 offers additional to channel one the use of a Search Probe.
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11.2.5.a.1 Rheobase/ Chronaxie • Select Rheobase / Electrotherapy Chronaxie with the Diagnostics central controller [5] and enter with the Electrode selection confirmation button [6] Phase Interval Rheobase / Chronaxie S/D Curve Rectangular S/D Curve Triangular Report Beep • Start with the ...
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• Push the confirmation Diagnostics button [6] to accept and Rheobase / Chronaxie to see the complete curve Rheobase • Return to the previous menu via the central controller [5] 500 ms • Select Report to see the results by figures. Chronaxie 1000 µs 10.0...
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• Select S/D Curve Electrotherapy Triangular with the Diagnostics central controller [5] and enter with the Type Electrode confirmation button [6] Beep Rheobase / Chronaxie S/D Curve Rectangular S/D Curve Triangular Report • Select the phase Diagnostics duration with the S/D Curve Triangular central controller [5], you can start on...
• Select report Diagnostics • You can store the Report results by pushing the assist button [7] Rheobase 1.6 mA • Select store Chronaxie 10 ms • Push the confirmation button [6]. Effective Phase Duration 1000 ms • The results will be Accommodation Threshold 4.2 mA stored under:...
• Changing parameters Ultrasound • Select the parameter with the central controller [5] and enter Treatment Time 06:00 with the confirmation Applicator button [6] • Adjust the setting in the Ultrasound Frequency pop-up screen Duty Cycle • The range of the parameter is showing Pulse Frequency in the pop-up screen.
• Using the central Combination Therapy controller [5], select a parameter. • Enter the selection with Premodulated the confirmation button Treatment Time 7:00 • Adjust the parameter in Carrier Frequency 4.0 kHz the pop-up with the Beat Frequency 80 Hz central controller [5] •...
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• Push the selection StatUS button[4] and adjust the pressure with the central controller [5] Treatment Time 0:00 Ultrasound Applicator Ultrasound Frequency 1 MHz Duty Cycle 20 % Duty Cycle Modulation Amplitude Modulation Pulse Frequency 100 Hz 7:00 0.00 W/cm²...
11.2.9 Vacuum adjustment via Assist button Electrotherapy • Push the Assist button [7] • Select in the pop-up Assist with the central Stop controller [5] Vacuum • Push the confirmation Unlink Channels button to return. Home Store Vacuum 15:00 • Select in the pop-up Electrotherapy with the central...
11.2.9.a Vacuum pulsed mode The underlining reason for vacuum pulsation is creating a massage effect during a treatment session. This is achieved by rhythmically varying the amount of suction under the electrode cups. To allow pulsation the range must be set between 10-30%. Ideally the setting should be between 50-70%.
11.2.9.c Default Setting Vacuum Module Frequent users of vacuum therapy can change the default setting for this module. Go to the System Setting to change the default settings for the default vacuum Pressure and the electrode selection. To activate the new default settings switch the unit on/off with the reset button. 11.2.10 Feedback Therapy 1.
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• Select Myofeedback Feedback Therapy with the central controller [5] and enter with the confirmation Myofeedback button [6]. Myofeedback + Stimulation Pressure Pressure + Myofeedback Stored Sessions 0:00 0:00 E1 10:00 • Select Continuous with Feedback Therapy the central controller [5] Myofeedback and enter with the...
• Treatment and Myofeedback registration runs Continuous – Record Note! Following parameters are adjustable during the treatment: • Sensitivity • Shift • Threshold • Stop the training via the assist button or wait until the training is 0:00 ...
notch filter to 60 Hz if the power supply frequency is 60 Hz. The default is 50 Hz (this is the power supply frequency in most countries). It is also possible to completely turn off this filter, but we do not recommend this. 11.2.10.b Exporting Reports and Measuring Data Prepare your USB memory stick for use on your computer.
• Change the value with Myofeedback the central controller [5] Continuous - Settings and push the confirmation button [6] to return Note! During this setting the measurement is active without any registration Sensitivity can also be change during the treatment ...
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• Change the value with Myofeedback the central controller [5] Continuous - Settings the line will move during the setting. • Push the confirmation button [6] to return Note! During this setting the measurement is active without any registration Sensitivity can also be change during the ...
11.2.10.g Shift Shift is a special tool only available in the Myomed 6- series. The function of this parameter is to zoom-in on a specific area in the graphic to have a better feedback for the patient. This is useful for patient with muscle Hypertonia.
• Using the central Sonopuls 692 M controller [5], select Home Feedback Therapy in the main menu. Therapy Wizard • Enter the selection with Electrotherapy the confirmation button [6]. Ultrasound Therapy Combination Therapy Feedback Therapy System Settings 0:00 0:00 E1 10:00 •...
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• Select a current wave Feedback Therapy form with the central Myofeedback + Stimulation controller [5] and enter with the confirmation Premodulated button [6] Russian Stimulation Biphasic Pulsed Current (TENS) Faradic Current Diadynamic Current High Voltage 0:00 0:00 E1 10:00 •...
White area is the Exercise Myofeedback + Stimualtion time Alternating - Record Green area is the Rest time Orange is the stimulation time; in that field is during the stimulation time no extra feedback, only the colour background Note! •...
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• Select a current wave Feedback Therapy form with the central Stimulation above Threshold controller [5] and enter with the confirmation Premodulated button [6] Russian Stimulation Biphasic Pulsed Current (TENS) Faradic Current Diadynamic Current High Voltage 0:00 E1 10:00 •...
White area is the Exercise Myofeedback + Stimualtion time Stimulation above Threshold - Record Green area is the Rest time Pink is the stimulation time, in that field is during the stimulation time no extra feedback, only the pink background Note! •...
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• Select a current wave Feedback Therapy form with the central Stimulation below Threshold controller [5] and enter with the confirmation Premodulated button [6] Russian Stimulation Biphasic Pulsed Current (TENS) Faradic Current Diadynamic Current High Voltage 0:00 0:00 E1 10:00 •...
White area is the Exercise Myofeedback + Stimualtion time Stimulation below Threshold - Record Green area is the Rest time Orange is the stimulation time, in that field is during the stimulation time no extra feedback, only the pink background Note! •...
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• Select Pressure with Feedback Therapy the central controller [5] and enter with the confirmation button [6]. Myofeedback Myofeedback + Stimulation Pressure Pressure + Myofeedback Stored Sessions 0:00 0:00 E1 10:00 • Select Continuous with Feedback Therapy the central controller [5] Pressure and enter with the...
• Treatment and Myofeedback registration runs Continuous – Record Note! Following parameters are adjustable during the treatment: • Sensitivity P • Shift P • Threshold P 0:00 0:00 P 09:45 µV 11.2.10.m EMG feedback with 2 channels The adjustment for two channels is the same as the adjustment for one channel.
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Select the cursor and Pressure push the confirmation Continuous – Analysis button [6]. 0:00 0:00 P 00:00 Move the cursor line with Pressure the central controller [5] Continuous – Analysis and accept with the confirmation button [6] ...
11.2.10.o Report Pressure Go to report with the Continuous - R central controller [5] and Zero push the confirmation button [6] Threshold P 0.0 hPa Graph Sound Record Analyze Report 0:00 0:00 P 0:00 The displayed results are ...
11.2.11 System Settings • Using the central controller [5], Sonopuls 692 select System Settings in the Home Home Menu • Therapy Wizard Enter the selection with the confirmation button [6]. Electrotherapy Ultrasound Therapy Combination Therapy System Settings • Select the desired setting with the central ...
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.
The unity of the displayed current amplitude depends on the previously selected current waveform and can be expressed in mA, µA or V. A treatment is started by adjusting the current amplitude, unless a surge program has been selected. To start a surge program, push the Assist button and deactivate the pause symbol with the central controller and the confirmation button [6].
• The display shows the first treatment step of the selected protocol. The total treatment time of the protocol is displayed in the channel tab. • Optionally push the assist button [7] for information about the protocol, electrode placement and other information. •...
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• Remove the cursor Electrotherapy 1 + 2 with the central controller [5] to the desired position Store • Push the confirmation button [6] to modify the first character • Note: Store the settings before starting the treatment.
12 Maintenance and Troubleshooting 12.1 User Maintenance 12.1.1 Cleaning of apparatus To clean the unit, turn it off and unplug the power supply. Clean the unit with a damp cloth. Do not use abrasive cleaners. A small amount of mild household detergent may be used, if needed. 12.1.2 Cleaning display panel The display panel contains an anti-reflective coating, which needs special care when cleaned.
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The StatUS applicator / ultrasound treatment head may be disinfected with a moist cloth dipped in 70% alcohol solution. Cable/Rubber Cup We recommend cleaning the cable and the rubber cup daily with a moist cloth. Use lukewarm water and a little household cleanser if necessary (no abrasives or no alcohol solutions). Note! •...
Figure B Figure C 12.1.7 Water reservoir of vacuum unit Treatment unit First switch off the unit and disconnect the mains. Remove the connection cable of the electrotherapy unit. The unit can be cleaned with a damp cloth. Use lukewarm water and, if required, a liquid household detergent.
Cleaning the water reservoir and hoses Before you run the cleaning procedure, the peripheral ends of the vacuum tubes should be placed in a cup with cleaning liquid (see below) so the Vacotron can be cleaned internally with this liquid. After this turn the vacuum pump on to full power until the reservoir is full with cleaning liquid.
• This unit operates with high voltages. No attempt should be made to disassemble the unit. Maintenance and repair should be carried out by authorized personnel only. The manufacturer will not be held responsible for the results of maintenance or repairs by unauthorized persons.
13.2 Premodulated / Isoplanar vector / Dipole vector Carrier frequency Beat frequency 13.3 Russian Stimulation Carrier frequency Burst frequency 13.4 Micro Current Frequency 13.5 High Voltage Peak interval - 64 µs fixed Pulse frequency ...
13.11 Modulation program Pulse frequency 13.11.1 Modulation program 1/1 Frequency modulation 13.11.2 Modulation program 6/6 or 12/12 6 : 6 or 12 : 12 Pulse frequency Frequency modulation 13.11.3 Modulation program 1/30 1 : 30 Pulse frequency Frequency modulation ...
ERA (Effective Radiation Area): IEC 60601-2-5: 2000 : 4 cm 21 CFR 1050.10 : 5 cm Beam type: 1 MHz : Collimating 3 MHz : Collimating BNR (Beam Non-uniformity Ratio) : 6:1 maximum Side radiation : 10 mW/cm² maximum 0.8 cm² Applicator Ultrasound frequency: 1 MHz : 0.98 MHz ±...
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Interval time : 0 - 120 s, in steps of 1 second Delay time : 0.1 - 80 s, below 1s in steps of 0.1s, otherwise in steps of 1s Interferential, 4 polar Carrier Frequency : 2, 2.5, 3, 3.5, 4, 5, 6, 7, 8, 9, 10 kHz Beat Frequency (AMF) : 0 –...
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Symmetrical Phase Duration : 10 - 1000 µs in steps of 5 µs Pulse Frequency : 1 - 200 Hz, in steps of 1 Hz Phase Interval : 0 – 255 µs, in steps of 5 µs Frequency Modulation (spectrum): 0 - 180 Hz in steps of 1 Hz Modulation Program : 1/1, 6/6, 12/12, 1/30/1/30 s Amplitude...
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Micro Current Alternating Frequency : 0 – 1000 Hz, 0 – 10 Hz in steps of 0, 1 Hz, 10 -100 Hz in steps of 1Hz., 100 – 1000 Hz in steps op 10 Hz Alternating Period : 0,2 – 20 seconds, 0,2 – 1 s in steps of 0,1s., 1 – 20 s in steps of 1 s.
14.6 EMC details Guidelines and manufacturer's declaration – electromagnetic interference The 6-series is intended for operation in an electromagnetic environment as indicated below. The customer or user of the 6-series should ensure that it is operated in such an environment. Interference tests Conformity Electromagnetic environment...
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Guidance and manufacturer’s declaration – electromagnetic immunity The 6-series is intended for use in the electromagnetic environment specified below. The customer or the user of the 6-series should assure that it is used in such an environment. Immunity test IEC 60601 test level Compliance Electromagnetic environment –...
Recommended separation distances between portable and mobile RF communications equipment and the 6-series The 6-series is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the 6-series can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the 6-series as recommended below, according to the maximum output power of the communications equipment.
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