Chiroform 125 User Manual Download

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User Manual

PRIMO COMBINATION 860

Model 125

Summary of Contents for 125

Page 1: ...User Manual PRIMO COMBINATION 860 Model 125 ...

Page 3: ...cations for use 7 Contraindications 9 Accessories 11 Controls and markings 13 Installation 18 Operating instructions 19 Ultrasound 21 Stimulation 27 Combination 44 Protocols 46 Ultrasound dose algorithm 47 Maintenance 49 Appendix A Overview of treatment modalities 50 Appendix B Technical specification 56 Appendix C EMC tables 70 Appendix D Essential performance 74 ...

Page 4: ...this manual is subject to change without notice No part of this manual may be photocopied reproduced or translated into another language without the prior written consent of EMS Physio Ltd Record of amendments ISSUE COMMENTS DATE 1 Initial issue 31 03 11 2 Errata corrected 07 04 11 3 Combination therapy instructions 30 06 11 corrected 4 Indications for use added 21 06 12 5 Updated to show latest i...

Page 5: ...in conformity with the essential requirements and provisions of the following EC Council Directives Directive Conformity assessment route 2011 65 EU Annex II module A 768 2008 EC RoHS 93 42 EEC Annex II of Directive 93 42 EEC under the supervision of Notified Body Number 0120 SGS United Kingdom Ltd Class IIb according to Annex IX of 93 42 EEC Signature M Bowles Position Operations Director Date 26...

Page 6: ...reliability and performance of the product only if assembly operations re adjustments modifications or repairs are carried out by persons authorised by it the product is used in accordance with the instructions for use the electrical installation of the relevant room complies with the appropriate national requirements Should the product be returned to the Company for repair it must be sent carriag...

Page 7: ... current waveforms may be applied to a wide range of conditions with successful outcomes These include acute and subacute traumatic and inflammatory conditions chronic rheumatoid and arthritic conditions and for pain relief Combination therapy involves the simultaneous application of ultrasound with an electrical stimulation therapy By combining ultrasound with interferential therapy the advantage...

Page 8: ... be used up to the maximum output of the unit without exceeding this figure When using other electrodes the maximum safe output current should be assessed before use First estimate the effective contact area of the electrode in square cm and then apply the following formula rms output current mA Area of electrode cm2 x 2 The ratio of the rms to the peak current for the different operating modes is...

Page 9: ...reased bleeding including recently controlled bleeding and haematoma Haemophilia Implanted devices such as cardiac pacemakers should be avoided due to the possibility of affecting their operation Also some plastics used in replacement surgery may be affected by absorption of ultrasound energy Metal implants may lead to reflections and as a precaution low doses of ultrasound should be used near the...

Page 10: ... medical opinion has first been obtained Febrile conditions Large open wounds in treatment area Dermatological conditions in treatment area Thrombosis Hypersensitivity or fear of electrical treatments Any patient who cannot understand the nature of the treatment for example young children very old or senile patients who cannot report back adequately or understand the potential dangers This may app...

Page 11: ...8 Primo trolley PMA9135 Small dual frequency transducer EMS502 EMS Physio coupling medium 8 x 250ml bottles EMS502A EMS Physio coupling medium 1litre bottle NC3052A 4 small sponge electrode covers for NC3052B NC3052B 4 small 70 x 50 mm conductive rubber electrodes NC3054A 4 large sponge electrode covers for NC3054B NC3054B 4 large 130 x 100 mm conductive rubber electrodes NC3041 Electrode handle f...

Page 12: ... lead suitable for the country to which it is delivered Replacement or additional mains leads are shown below EMS Part Number Description 6 85 UK mains lead 6 112 European mains lead 6 119 North America mains lead For other countries contact EMS Physio Ltd or the agent from whom the unit was purchased EMS Physio Ltd Grove Technology Park Downsview Road Wantage Oxfordshire OX12 9FE England T 01235 ...

Page 13: ...Primo Combination 860 front panel Ultrasound output IEC symbol 878 01 37 Output Stimulator output IEC symbol 348 Attention consult accompanying documents IEC symbol 7000 1641 Consult instructions for use IEC symbol 878 02 03 Type BF equipment ...

Page 14: ... mode Do not dispose of as unsorted waste 2006 96 EC WEEE Directive Serial number and date of manufacture Stimulation output levels Name and address of manufacturer IEC symbol 348 Attention consult accompanying documents IEC symbol 7000 1641 consult instructions for use Model number and classification ...

Page 15: ...Combination 860 15 Primo Combination 860 top LCD touch panel IEC symbol 848 01 26 variability in steps On Off button Cradle for ultrasound transducer Output control knob ...

Page 16: ...860 16 Large transducer Small transducer The ultrasound transducers are calibrated independently from the Primo Combination 860 and are fully interchangeable Active face Treatment light Active face Treatment light ...

Page 17: ...Combination 860 17 Patient lead PMA3055 Electrode connecting cables 12 FOR USE WITH EMS STIMULATORS B A 1 2 1 2 TOP A B 1 2 1 2 ...

Page 18: ...y be used powered by the battery only The SLA9000 power supply must only be connected to a mains supply with a protective earth conductor If the integrity of the earth connection is in doubt do not connect it to the mains supply The Primo Combination 860 unit is supplied with a large ultrasound transducer and four medium sized electrotherapy electrodes with their associated patient lead An optiona...

Page 19: ...nd the battery status if installed If the unit is fitted with a rechargeable battery pack the battery symbol will be shown in the status line The symbol is shaded to show the current charge state of the battery indicates a completely discharged battery and a fully charged battery The arrow to the left of the battery symbol will be shown if the battery is being charged To conserve battery life the ...

Page 20: ...n a stimulation screen is selected In 4 pole Interferential mode it controls the overall Stimulation intensity in all other stimulation modes it is possible to independently control the levels of channels A and B by pressing and holding the relevant selection button In combination mode three buttons are available except for 4 pole combination therapy when there will be two to select whether the ro...

Page 21: ...he screen on the digits of the time display to increment some treatment time maximum 30 minutes Alternatively touch the clock symbol to bring up the following screen Type in the desired time and press ENTER to return to the main screen Select the desired ultrasound Frequency and Mode pulsed or continuous by touching the relevant field on the screen ...

Page 22: ... to start treatment The output intensity will increase in 0 1 W cm2 steps The treatment indicator on the transducer will light the output symbol on the LCD will flash and the treatment time will begin to count down If the transducer is not properly connected to the output socket or the treatment time is zero then the unit will give a two tone beep and the output will not be energised Move the tran...

Page 23: ...wer from the transducer will be turned off the treatment indicator will turn off and the unit will give a two second beep Remove the transducer from the treatment site wipe off any coupling medium and return the transducer to its cradle on the front of the unit Remove the remaining coupling medium from the treatment site The transducers are also suitable for treatment using a water bath This is es...

Page 24: ...uage to any that are installed in the unit Key click allows you to turn on or off the beep that happens whenever the screen is touched Touching the Contact button gives you a screen with three options for the behaviour of the contact alarm On is the default mode where poor contact turns out the contact light and stops the timer countdown Off causes poor contact to turn out the contact light but no...

Page 25: ... Load The settings shown on the file card will be loaded and the user will be returned to the ultrasound set up screen If an empty card is selected the unit will give a short beep and no action will be taken To save the current ultrasound screen set up as a user program select the card to which the set up is to be saved by touching its tab and press Save The settings will be saved and displayed on...

Page 26: ...ion user programs Similarly pressing the User button in any of the stimulation set up screens will open the stimulation user program screen These can be saved loaded or erased in much the same way as the ultrasound user programs ...

Page 27: ...stem Menu screen press the Stimulation button The following stimulation screen will appear Scrolling down past the TENS setting reveals further stimulation options And more Pressing the menu button now would return the screen to the main system menu ...

Page 28: ...tton selects 4 8 or 2 kHz carrier frequency AMF Pressing this button opens the AMF window The amplitude modulation frequency AMF or beat frequency is set as a Base and Peak beat frequency The beat frequency sweeps between the base and the peak frequency at a rate determined by the setting of the Pattern button If the base and peak frequencies are set to the same value then a constant beat frequenc...

Page 29: ...of its nominal amplitude to 100 while the output of channel B falls from 100 to 80 During the next 5 seconds A will return to 80 and B will rise to 100 and so on The effect is to move the physical location of the point of maximum stimulation in the tissue and therefore increase the treatment area To change the vector option press the Vector button CC CV The output from the unit may be set to be co...

Page 30: ...e two medium frequencies are added together in the stimulator itself and applied to the treatment site through a single pair of electrodes The 2 pole interferential set up is similar to the 4 pole set up The treatment time carrier frequency base and peak frequencies pattern and CC CV operation are set up in exactly the same way ...

Page 31: ...rk period For example if the ratio is set to 1 4 then the work period is 10 seconds and the rest period is 40 seconds Press the ratio button to set the ratio to any integer value between 1 1 and 1 5 When running the burst status is displayed in the top right corner of the display CC CV The output may be set to be constant current CC or constant voltage CV by pressing the CC CV button In constant c...

Page 32: ...reatment time Is set in the same way as described above Three waveform types are available and each type is represented graphically on the LCD Type Selection is achieved by pressing the Type button Asymmetrical Symmetrical Sequential ...

Page 33: ...quency pressing this button opens a new window The pulse frequency may be set from 1 to 250 Hz in 1 Hz increments by pressing the numerical digits and then pressing OK Mode control The TENS output may be continuous burst or surged Each modulation type is selected by pressing the Mode button CC CV The output may be set to be constant current CC or constant voltage CV by pressing the CC CV button ...

Page 34: ...these waveforms are given in the technical specification section of this manual Polarity This reverses the polarity of the waveforms see technical spec It is particularly used in combination therapy where the ultrasound head becomes one electrode and this switch will change the polarity of the stimulator waveform relative to the ultrasound head If the Autorev option is selected the polarity of the...

Page 35: ...is available in the technical specification section of this manual The surge pattern may be changed by pressing the surge button Rate Surge rates of 2 5 10 20 and 30 per minute are available The surge rate may be changed by pressing the Rate button When running the surge status is shown in the top right corner of the display CC CV The output may be set to be constant current CC or constant voltage...

Page 36: ...vailable in the technical specification section of this manual The surge pattern may be changed by pressing the Surge button Rate Surge rates of 2 5 10 20 and 30 per minute are available The surge rate may be changed by pressing the Rate button When running the surge status is shown in the top right corner of the display CC CV The output may be set to be constant current CC or constant voltage CV ...

Page 37: ...860 37 Galvanic set up Treatment time is set as described above Polarity Pressing this button changes the electrical polarity of the galvanic current Pos Neg or Autorev half way through the selected treatment time ...

Page 38: ...e pulse width may be set from 1ms to 1s for all waveforms with additional narrower pulses for rectangular only Rate Pulse rates of 2 5 10 20 and 30 per minute are available Polarity Positive going negative going or auto reverse polarities are available auto reverse occurs half way through the selected treatment time When running the output state is represented by a graphic in the top right corner ...

Page 39: ...ilable options are treatment time polarity and CC CV These are set in exactly the same way as in the other operating modes Medi Wave set up Freq pressing this button opens this window The frequency may be set from 2 to 60 Hz in 1Hz increments ...

Page 40: ... 20 Hz and the pulse frequency divided by 10 for frequencies less than 20 Hz The duty cycle of the burst is 50 In surge mode the surge rate is 10 per minute CC CV The output may be set to be constant current CC or constant voltage CV Microcurrent set up Freq The frequency may be set from 1Hz to 1000Hz in ascending jumps by repeated presses of this button Polarity This may be Pos Neg or Autorev hal...

Page 41: ...er the required current then the output of the Combination 860 is terminated an error message is displayed on the bottom line of the LCD and an intermittent alarm is sounded To cancel the alarm and clear the error message press any button or turn the rotary control anticlockwise The remaining treatment time is maintained Check the electrodes and leads before continuing treatment If rubber pad elec...

Page 42: ...olding the relevant output channel button right hand side of screen to increase the output level If the treatment time is zero the unit will give a short alarm to indicate that the output cannot be energised If the treatment time is not zero the output of the stimulator will be energised the output symbol will flash and the treatment time will begin to count down Advance the output control slowly ...

Page 43: ...us frequency AMF is displayed Note In soft water areas it may be necessary to add a small amount of bicarbonate of soda to the water used to wet the sponges in order to achieve adequate contact When the treatment time reaches zero a three second alarm is sounded From any of the set up screens pressing the menu key when the output is off returns to the system menu ...

Page 44: ...rapy The B2 terminal becomes the electrode paired with the ultrasound head and the yellow wires A1 and A2 become an independent pair of electrodes on stimulation channel A If Channel A is not to be used do not turn up its output an electrode error warning will appear if this is done in CC mode Set up both the ultrasound and the stimulator screens ready for treatment pressing the menu key after eac...

Page 45: ... between the stimulator electrode s and the ultrasound transducer Press and hold the stimulator output button one channel at a time if A and B are available turn it on using the control knob and slowly increase the intensity until the patient just feels the normal tingling sensation associated with the modality Turn on the ultrasound output press and hold the US button whilst turning the control k...

Page 46: ...treating various conditions The condition to be treated can be selected using the up down buttons and then pressing select to call up the ultrasound treatment settings for that particular condition There is a similar list of protocols available for stimulation treatment by pressing the Prot button in 4 Pole interferential mode only ...

Page 47: ...nsducer is not connected this screen will appear prompting to connect one When a transducer is connected and Next is pressed this screen will appear The data concerning the state of the area to be treated is chosen using the Up Down buttons then pressing Select will cause the algorithm to calculate the relevant treatment settings ...

Page 48: ...ea it may be necessary to add a small amount of bicarbonate of soda to the water to ensure low contact impedance for the electrodes Fit the rubber electrodes fully into the sponge covers Apply the electrodes to the patient using the elasticated bandages supplied The bandages must cover the whole of the electrode and maintain an even pressure in order to achieve a uniform current flow A piece of po...

Page 49: ...nd connectors for signs of damage The ultrasonic output power should be checked at least annually The Combination 860 has the option of an internal NiMh rechargeable battery Whenever the unit is connected to the power supply the battery is monitored and charged as necessary This type of battery has a limited life typically 500 charge discharge cycles This battery must only be replaced by authorise...

Page 50: ...ound wave propagates through the medium as particles in the medium pass on their vibration to neighbouring particles and a series of compressions and rarefactions are produced in the direction of travel of the wave Therefore sound waves are longitudinal waves The diagram shows a sound wave travelling from left to right The vertical bars represent thin slices of the medium which are displaced to fo...

Page 51: ...rough the medium for its intensity to be reduced to one half of its original value Many attempts have been made to measure the attenuation in various types of tissue with varying results It is perhaps more important to remember which types of tissue have the highest absorption and which the lowest With the lowest absorption first the order is fat muscle skin tendon cartilage and bone For soft tiss...

Page 52: ...oedema and produce an increase in circulation in the treated area Faradic pulses are of short duration less than 1 ms and have a repetition rate of 50 Hz They are normally surged to produce rhythmical muscle contraction Galvanic or direct current is used for pain relief and iontophoresis The Combination 860 produces a wide range of interrupted galvanic pulses Rectangular pulses from 10µs to 1s are...

Page 53: ...ired current resulting in less skin sensation and a more comfortable treatment This medium frequency is however well outside of the normal biological frequency range 0 1 to 250 Hz In order to produce the required stimulation two medium frequencies are used A constant frequency of say 4000 Hz is applied to one pair of electrodes and a slightly different frequency of say 3900 Hz is applied to the ot...

Page 54: ...y the alteration of the ion pump activity predominantly Na and K but also Ca By altering the transport of these ions across the cell membrane the resting potential will be altered and in this case it would seem that it results in a reduced threshold for depolarisation It is reasonable to expect that this effect occurs in other tissue apart from nerve although no direct evidence has been noted to d...

Page 55: ...ons It has also been suggested that a greater effective treatment depth can be achieved with an ultrasound interferential combination Unlike routine interferential therapy the intensity of the electrical stimulation in combination therapy may need to be REDUCED during treatment probably due to the continued effect of the ultrasound on the nerve membrane threshold In summary by combining the two tr...

Page 56: ...sity 1 5 W cm2 in CW 3 0 W cm2 in pulsed modes Maximum output power 6 W average PSU operation only Output modes CW and pulsed 1 1 1 2 1 4 and 1 9 Pulse duration 2 ms Treatment timer 0 to 30 minutes treatment linked Contact monitor Light on transducer Large ultrasound transducer ERA 4 cm2 IEC 61689 5 cm2 21 CFR 1050 10 BNR 5 Beam type Collimated Small ultrasound transducer 1MHz 3MHz ERA 0 6 cm2 0 4...

Page 57: ...fixed at 2 ms Interferential 4 pole Carrier frequency 2 kHz 4 kHz or 8 kHz AMF 0 250 Hz in 1 Hz increments Swing pattern 1 1 6 6 or 6 6 Vector 10s 20 both channels Output type CC 0 100mA peak CV 0 70V peak Output channels 2 Interferential 2 pole Carrier frequency 2 kHz 4 kHz or 8 kHz AMF 0 250 Hz in 1 Hz increments Swing pattern 1 1 6 6 or 6 6 Output type CC 0 100mA peak CV 0 70V peak Output chann...

Page 58: ...µs Repetition rate 1 250 Hz Modulation None burst or surged Output type CC 0 100mA peak CV 0 60V peak Output channels 2 Diadynamic currents Current types DF MF CP CPiso RS LP Output type CC 0 70mA peak CV 0 140V peak Polarity Positive negative or auto reverse Output channels 2 Sinusoidal Frequency AMF 50 Hz Surge rate 2 to 30 minute Surge pattern Rectangular triangular or trapezoidal Output type C...

Page 59: ...ative or auto reverse Output channels 2 Interrupted galvanic Pulse width 10 µs to 1 s for rectangular 1 ms to 1 s for other shapes Waveform Rectangular triangular or trapezoidal Pulse rate 1 to 30 minute Output type CC 0 70mA peak CV 0 140V peak Polarity Positive negative or auto reverse Output channels 2 Träbert Waveform 2 ms on 5ms off rectangular Output type CC 0 70mA peak CV 0 140V peak Polari...

Page 60: ...pulse Frequency 2 60 Hz Modulation None burst surged Output type CC 0 50mA peak CV 0 60V peak Output channels 2 Microcurrent Waveform Square wave 50 duty cycle Frequency 1 1000Hz Output type CC 0 1mA Polarity Positive negative or auto reverse Output channels 2 ...

Page 61: ...kHz 267 250 µs 8 kHz 8 kHz 125 µs 7 75 8 kHz 129 125 µs In constant current mode the maximum output current per channel is 100 mA peak 70 mA rms The maximum load impedance in ohms at any given output current is given by Maximum impedance 70000 peak output current in mA In constant voltage mode the maximum output voltage is 70Vpeak or load impedance x 0 1 V peak whichever is the smaller ...

Page 62: ...ble with independent intensity control Russian stimulation The burst frequency may be set to be from 1 Hz to 100 Hz The on and off times are always equal and are from 0 5s 1 Hz burst to 5 ms 100 Hz burst The maximum output voltage and current are the same as for 4 pole interferential operation Two channels of output are available with independent intensity control ...

Page 63: ... and off times are 5 pulse periods TENS Surge mode For repetition rates greater than 5 Hz the TENS output is zero for 2 s rest then increases to the set level during the next 1 s rise remains at the set level for 0 5 s hold and returns to zero during the next 0 5 s fall giving a surge rate of 15 minute Below 5 Hz the rest rise hold and fall times are 10 5 3 and 2 pulse periods respectively Two cha...

Page 64: ...MF waveform is a continuous half wave rectified 50 Hz sinewave rms current peak current x 0 5 The maximum rms current is 37 5 mA CP modulé en courtes périodes The CP waveform is a combination of the MF and DF waveforms The unit provides 1 s of MF half wave signal followed by 1 s of DF full wave signal the sequence being repeated continuously CPiso modulé en courtes périodes isodynamique This is th...

Page 65: ...second of MF followed by 1 second of zero output this sequence being repeated continually Two channels of output are available with independent intensity control Polarity The above waveforms exhibit Pos polarity as they all travel above the ground zero volts level equivalent to the flat part of the waveforms The polarity switch enables the user to reverse this Neg so that the above waveforms would...

Page 66: ... output x 0 707 Three standard surge patterns are provided The rest rise hold and fall times for each pattern as a percentage of the complete surge cycle are shown below Pattern Rest Rise Hold Fall Rectangular 50 5 40 5 Triangular 50 33 16 1 Trapezoidal 50 25 13 12 Two channels of output are available with independent intensity control Faradic The output in faradic mode is a series of 0 5ms pulses...

Page 67: ... 10 µs to 1 s pulse width and triangular and trapezoidal pulses from 1 ms to 1s The pulse repetition rate is from 2 to 30 pulses per minute Two channels of output are available with independent intensity control and their polarity may be selected as Pos Neg or autorev half way through the treatment time Träbert This mode produces a continuous train of 2ms pulses with a 5 ms interval between each p...

Page 68: ...mode the surge rate is 10 per minute Two channels of output are available with independent intensity control Microcurrent The Microcurrent output is a unipolar square wave with a frequency variable between 0 and 1000 Hz It is a small constant current variable between 0 and 1mA and its polarity may be selected as Pos Neg or autorev half way through the treatment time Environmental conditions for tr...

Page 69: ...Combination 860 has been designed to meet the requirements of BS EN 60601 1 2006 Medical Electrical Equipment Part 1 General requirements for safety BS EN 601 2 5 2001 Medical Electrical Equipment Part 2 5 Particular requirements for the safety of ultrasonic physiotherapy equipment BS EN 60601 2 10 1998 Medical Electrical Equipment Part 2 10 Particular requirements for the safety of nerve and musc...

Page 70: ... guidance 4 RF emissions CISPR 11 Group 1 The 860 uses RF energy only for its internal function Therefore its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment 6 RF emissions CISPR 11 Class A The 860 is suitable for use in all establishments other than domestic and those directly connected to the public low voltage power supply network that suppl...

Page 71: ... 1 kV differential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 5 UT 95 dip in UT For 0 5 cycle 40 UT 60 dip in UT For 5 cycles 70 UT 30 dip in UT For 25 cycles 5 UT 95 dip in UT For 5 sec 5 UT 95 dip ...

Page 72: ...ers as determined by an electromagnetic site surveya should be less than the compliance level in each frequency rangeb Interference may occur in the vicinity of equipment marked with the following symbol NOTE 1 At 80MHz and 800MHz the higher frequency range applies NOTE 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from stru...

Page 73: ...mmunications equipment 150kHz to 80MHz d 3 5 P V1 80MHz to 800MHz d 3 5 P E1 800MHz to 2 5GHz d 7 P E1 0 01 0 12 0 12 0 23 0 1 0 38 0 38 0 73 1 1 2 1 2 2 3 10 3 8 3 8 7 3 100 12 12 23 For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be estimated using the equation applicable to the frequency of the transmitter where P is the ma...

Page 74: ...NR 5 Small transducer ERA 0 6cm2 20 IEC61689 divergent at 1MHz ERA 0 4cm2 20 IEC61689 collimated at 3MHz BNR 5 Interferential 4 pole Carrier frequency 2 kHz 4 kHz or 8 kHz 5 AMF 0 250 Hz in 1 Hz increments 2 Swing pattern 1 1 6 6 or 6 6 Output type CC 0 100mA peak 10 into 500 Ω CV 0 70V peak 10 into 2 k Ω Interferential 2 pole Carrier frequency 2 kHz 4 kHz or 8 kHz 5 AMF 0 250 Hz in 1 Hz increment...

Page 75: ...attern Rectangular triangular or trapezoidal Output type CC 0 50mA peak 10 into 500 Ω CV 0 100V peak 10 into 2 k Ω Faradic Frequency 50 Hz 5 Surge rate 2 to 30 minute 10 Surge pattern Rectangular triangular or trapezoidal Output type CC 0 50mA peak 10 into 500 Ω CV 0 100V peak 10 into 2 k Ω Galvanic Output type CC 0 70mA peak 10 into 500 Ω CV 0 140V peak 10 into 2 k Ω Interrupted galvanic Pulse wi...

Page 76: ...500 Ω CV 0 140V peak 10 into 2 k Ω Medi Wave Waveform 6 ms 5 differentiated pulse Frequency 2 60 Hz 5 Output type CC 0 50mA peak 10 into 500 Ω CV 0 60V peak 10 into 2 k Ω Microcurrent Waveform Square wave 50 duty cycle Frequency 1 1000Hz Output type CC 0 1mA 20 Polarity Positive negative or auto reverse ...

Page 77: ...Combination 860 77 ...

Page 78: ...Combination 860 78 EMS Physio Ltd Grove Technology Park Downsview Road Wantage Oxfordshire OX12 9FE UK T 01235 772272 F 01235 763518 E sales em sphysio co uk Website http www em sphysio co uk ...

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