Bagnoli Users Guide (MAN-004-1
Contents
1. DELSYS Bagnoli EMG System User s Guide Dois oe Gai Oi wal 4 ISR PEER C DELS Y SB Bagnoli EMG System User s Guide March 2008 Edition PM B05 Copyright O 2008 by Delsys Incorporated Specifications and procedures outlined in this document are subject to change without notice The Delsys Logo EMGworks and Myomonitor are Registered Trademarks of Delsys Incorporated MAN 004 1 0 Table of Contents Table of Contents se 1 Important Information eennennnvrnnnvennnvnnnnennnuvnnnvennnvennnvnnnner 3 Mondod USO seen een eee ene ne nen ener nee ete rere 3 Projo Lie La 0 Leg 1 OWNS xicceesapnctet 5 see sepsscatncsesuceabaaoeaustenseu sien eeraeottestes 3 Technical Service ANd Support pp 3 Warnings and Precautions pp 4 Device Information pp 5 DEN shat sate EEEE tegensenceeteneeseseade nde 6 Limited Warranty pt 6 Bagnoli EMG System ee 7 Bagnoli System Components pe 8 nr Ulver 8 DE 2 1 Single Differential Surface EMG Sensor 6 9 DE 3 1 Double Differential Surface EMG Sensor Optional 10 fa 010 WE 0 1 EE casenteestenceus 11 IO UE IG NE 11 InterModule Cable Bagnoli 16 Only pp 12 EMG Accessory Kil sieve sinccneavescasetangeestbinmseacosssenecsieeencdestocenrees 12 OWE SUD ION EE EE 13 EMGworks Package Optional pp 14 Getting Started with the Bagnoli System 00 15 Connecting the Power Supply pp 15 Connecting the Output Signals pp 16 HD62. Date of Manufacturing appears on device Serial Number appears on device EMERGO EUROPE EC Molenstraat 15 2513 BH The Hague The Netherlands Authorized Representative Manufacturer DELSYS INC 650 Beacon St Boston MA 02215 USA Important Information Disclaimer DELSYS INC makes no warranties express or implied as to the quality and performance of this product including but not limited to any implied warranty of applicability for other than research uses by qualified individuals DELSYS INC shall not be liable to any person for any medical expenses or any direct or consequential damages resulting from any defect failure or mal function whether a claim for such damages is based upon theory of warranty contract tort or otherwise No representative agent or licensed practitioner is authorized to waive this dis claimer DELSYS INC makes no diagnosis or prescription by virtue of anything about this product Limited Warranty The Bagnoli EMG Systems are warranted against failure of materials and workmanship for a period of 1 year from the date of delivery provided that the product is given proper care and has not been subject to abuse during this period This warranty is in lieu of all other warranties expressed or implied Operation of this device outside specifications determined by DELSYS INC or use with any other input devices other than DELSYS INC sensors constitute an invalidation of this limited war
3. FGG 0B 306 CLAD56 Connector Pinout l Stop In GND Stop Out Start Out Power 5V Start In GND Pulse Duration See timing diagram for more detail Start In 10ns min Start Out 50 100ns Stop Out approximately 10ms Stop In 10ns min Please note the following 1 Delsys recommends the use of the Trigger Module SP U02 for integration of the Bagnoli EMG System with other systems 2 Delsys does not stock mating connectors and cannot support custom trigger solutions Trigger Port Timing Diagram Tai minl l Start In Start Out EUR Se TE Stop In Stop Out 50 100ns 2s min 10ms 500ms 10ms 32 Bagnoli EMG System User s Guide Component References Component References Part Description Part Number EMG System Bagnoli 4 Bagnoli 8 Bagnoli 16 Main Amplifier Unit Bagnoli 4 Bagnoli 8 Bagnoli 16 SPED DE 3 1 EMG Sensor SP E06 Input Module Bagnoli 4 SP NO03 Bagnoli 8 SP NO4 Bagnoli 16 Ch 1 8 and Ch 9 16 SP NO05 and SP N06 Input Cable Bagnoli 4 DC NO9 25ft DC N12 SOft Bagnoli 8 and Bagnoli 16 DC N10 25ft DC N11 50ft InterModule Cable DC NO8 EMG Accessory Kit SC K05 Adhesive Sensor Interfaces For DE 2 1 Sensors For DE 3 1 Sensors Reference Electrode Cable DC R02 Power Supply Bagnoli 4 Bagnoli 8 and Bagnoli 16 Carrying Case Bagnoli 4 and Bagnoli 8 Bagnoli 16 Bagnoli EMG System User s Guide PM BO5 33 Component R
4. RR RRR ER HR RHR RHR RRR RC KR RCC PC KCC E E E 35 68 Figure 20 Signal Pinout of the HD68 Output Connector Se Pin Se Pin Channel 1 68 Channel 9 Channel 2 Channel 10 Kom Channel 3 Channel 11 31 Channel 4 Channel 12 Channel 5 Channel 13 61 Channel 6 KJE Channel 14 Channel 7 Channel 15 58 Channel 8 Channel 16 Analog GND Analog GND 26 Bagnoli EMG System User s Guide Maintenance and Care of the Bagnoli System Maintenance and Care of the Bagnoli System Main Amplifier Unit and Input Modules The Bagnoli System is designed to provide years of reliable ser vice when proper care is followed A one time calibration is performed at the time of manufacturing No further calibration is needed While the Main Unit and the Input Module cases are made of durable plastic the following points should be kept in mind when using and handling them e The device and its accessories should be visually inspected before every use to ensure that no mechanical deterioration has occurred e The Main Unit and Input Modules can be easily cleaned with a damp cloth and mild detergent e The units are not shockproof and should not be dropped or be subjected to excessive forces or accelerations e Provide ample strain relief for the interconnecting cables so that none of them are under excessive tension Do not pull on any of the interconnecting cables Grasp all cables by the plug when mating and disconnecting No
5. more information on the use of the DE 3 1 Double Differential Surface EMG Sensors Le l Pa Va Lt Vout V1 2 Ve a ta st il Le a Wis Ref Ret Figure 6 DE 3 1 Double Differential Surface EMG Sensor The sensor performs a 2 stage subtraction the first stage establishes the difference between contact V and contact V gt as well as between contact V and contact V The second stage then performs a subtraction between these differences 10 Bagnoli EMG System User s Guide Bagnoli System Components Input Modules Input Cable The Input Modules host the EMG and Biosignal Sensors and the Reference Electrode cable The Input Module for the Bag noli 4 hosts four Sensors while that for the Bagnoli 8 hosts eight The Bagnoli 16 uses two Input Modules that each host eight Sensors Each Input Module has a clip on one side which allows easy fastening to waist belts or other articles of clothing Figure 7 Input Modules The Input Cable connects the primary Input Module with the Main Amplifier Unit supplying power to the active EMG and Biosignal Sensors and transmitting signals back to the Main Amplifier Unit Figure 8 Input Cable 11 Bagnoli System Components InterModule Cable Bagnoli 16 Only The Bagnoli 16 EMG System uses two Input Modules The InterModule cable is used to bridge these together The modular design allows the user to use only the Ch 1 8 Input Module if ch
6. signals in the range of 100u V to 500 uV in the presence a 12 bit or similar A D system The output yielded in this case is 1 V to 5 V but care must be taken to prevent amplifier saturation AUX This position is for custom configurations It is designed to be used with Delsys Biosignal Sensors such as EKG sensors goni ometers accelerometers footswitches and others Gain Settings Gain Knob Saturation LED Line Interference LED Channel Number Figure 18 Channel including gain knob saturation LED and Line Interference LED 21 Getting Started with the Bagnoli System Beginning Data Acquisition HD68 Connector for EMGworks Package The HD68 Connector is used to connect the Bagnoli EMG Sys tem to a National Instruments A D Data Acquisition Card so that data acquisition can be controlled with EMGworks Software Refer to the EMGworks User s Guide for detailed data acquisition instructions BNC Connectors Data acquisition with the BNC Sockets requires an oscilloscope or other data acquisition system Consult the documentation for the oscilloscope or data acquisition system being used for instructions 22 Bagnoli EMG System User s Guide Signal Quality Assurance Features Signal Quality Assurance Features Each channel of the Bagnoli EMG System is equipped with cir cuitry to detect amplifier saturation and line interference both common sources distortion in the recording environme
7. so that they can be placed on any part of a user s body when the Input Modules are mounted at waist level Only use sensors that have been approved by Delsys Connecting unapproved sensors to the Bagnoli System constitutes an invalidation of the Delsys Warranty and may result in personal injury and or permanent damage to the system or the sensors Orienting the EMG Sensors on the Skin The DE 2 1 EMG Sensor is fitted with two silver bar contacts for detecting the EMG signal at the skin surface It is crucial that the orientation of these bars be perpendicular to the muscle fibers for maximum signal detection The top of the sensor is stamped with an arrow to aid in the determination of this orienta tion The arrow should be placed parallel to the muscle fibers underneath the sensor The sensor should also be placed in the center of the muscle belly away from tendons and the edge of the muscle The sensor is easily attached to the skin using the Del sys Adhesive Sensor Interface j Muscle Fiber Direction Figure 16 EMG Sensor orientation with respect to the muscle fibers It is important that the orientation of the arrow on the sensor be parallel to the underlying muscle fibers 18 Bagnoli EMG System User s Guide Getting Started with the Bagnoli System Using the Delsys Adhesive Sensor Interface The Adhesive Sensor Interfaces use medical grade adhesive spe cifically designed for dermatological application
8. 16 for the Bagnoli 16 Align the connection symbols on the rear panel and the Input Cable inserting the cable into the recep tacle until the latching mechanism secures the connection Fol low the same procedure when connecting the Input Cable to the Input Module For the Bagnoli 16 only the InterModule Cable connects the Channel 1 8 Input Module to the Channel 9 16 Input Module If Channels 9 16 are not being used the user does not need to use the InterModule Cable and the second Input Module The Input Modules are equipped with belt clips to facilitate attachment to the patient Input Cable InterModule Cable Figure 15 Connecting the Bagnoli 16 Main Amplifier Unit and Input Modules via the Input Cable and InterModule Cable Do not use force when mating the Input Cable with the Main Amplifier or Input Module Take care to observe correct connector orientations Improper or forceful insertion will damage the connectors and the system 17 Getting Started with the Bagnoli System Connecting the Sensors The Bagnoli EMG System is supplied with DE 2 1 Single Dif ferential Surface EMG Sensors These plug into the receptacles on the Input Modules that are labeled with channel numbers The connectors have a key so that they can only be inserted with a specific orientation The order of the sensors can be inter changed with no consequences to the performance of the EMG System The sensor cables are five feet in length
9. 8 Connector for EMGworks Package cccccsssssceeeeaeeees 16 BNC Connectors pe 16 Connecting the Input Modules pp 17 Connecting the Sensors pp 18 Orienting the EMG Sensors on the Skin pp 18 Using the Delsys Adhesive Sensor Interface pp 19 Connecting the Reference Electrodes pp 20 Turning the System ON 4 20 Selecting Appropriate Amplifier Gains pp 21 Beginning Data ACQUISITION pp 22 HD68 Connector for EMGworks Package cccssseseeceeeeaeeees 22 BNC Connectors pt 22 Signal Quality Assurance Features rnnnnnnnnnnnnennnnnnnnn 23 Saturation Level Detector pp 23 Line Interference Detector cccccececcecececceccccececeacscecens 23 Audible BUZZER AIAN ercer 24 Additional Bagnoli Hardware Features ssssssees 25 TAGS FAT sesam dad 25 HOGS Somecor Proluasvarevgrasssvmesseses 26 Maintenance and Care of the Bagnoli System 27 Main Amplifier Unit and Input Modules pp 27 DE Series Surface EMG Sensors pp 28 SPECNCAUONS an 29 Main Amplifier Unit Commomy pp 29 Bagnoli 4 Main Amplifier Unit rrnnennnnrnnnnnrrnnnnnrnnnennnnrnnnnnrn 29 Bagnoli 8 Main Amplifier Unit rrnnennnnrnnnnnrnnnnrnrnnrennnnrnnnnnen 29 Bagnoli 16 Main Amplifier Unit pp 29 SC P02 SC P03 Power Supply for Bagnoli Systems 30 DE 2 1 Single Differential Surface EMG Sensor 30 DE 3 1 Double Differential Surface EMG Sensor Optional 30 NAT MONET 31 al s
10. Care should be taken to preserve the integrity of these contacts Do not scrape or dent these contacts e Do not pull on the sensor cable Avoid kinks in the cable as these will result in damage to the internal cable wires and intermittent connections e Handle the sensors with care do not drop them on the ground or step on them The sensors must only be used with Delsys EMG Systems The DE 2 1 and the DE 3 1 EMG Sensors are specifically designed for the Bagnoli series EMG Systems Using these sensors as inputs to any other EMG system constitutes an invalidation of the Delsys Warranty and may result in personal injury and or permanent damage to the sensors or the system Do not submerge the sensors in any liquid under any circumstance The sensors contain sensitive electronic circuitry Static discharges and intense magnetic fields should be avoided to prevent possible irreparable damage to the sensors 28 Bagnoli EMG System User s Guide Specifications Specifications Main Amplifier Unit Common Number of Channels 4 8 or 16 analog DE 3 1 double differential System Noise R T I lt 1 2 uV rms for the specified bandwidth Channel Output Isolation 3750 V rms 60 Hz for 60 sec Output Signal Connectors 4 8 or 16 BNC connectors 68 pin 0 05 pitch high density D Sub male Signal Quality Check Line Frequency Interference 50 or 60 Hz inne San hk 28 Vs Signal Quality Warnings Yellow LED CRNA Se
11. annels 9 16 are not being used Figure 9 InterModule Cable EMG Accessory Kit All Delsys Systems include the essential accessories to get started with hassle free EMG detection including Adhesive Sensor Interfaces Reference Electrodes Reference Electrode Cable d y Figure 10 The EMG Accessory Kit includes Adhesive Sensor Interfaces and Reference Electrodes 12 Bagnoli EMG System User s Guide Bagnoli System Components Power Supply The Bagnoli EMG Systems include a Medical Grade power sup ply This supply conforms to IEC 60601 1 safety standards The power supply is fitted with a universal IEC 320 input plug so as to accept power cables from all countries The input is satiable to 115 or 230 VAC accepting either 50 or 60 Hz The user should make sure that the power supply is configured to the local line voltage by setting the red Line Voltage Selector switch on the underside of the power supply to the correct voltage An incor rect setting will result in an internal fuse expiration Information for replacing the fuse can be found in the Appendices Delsys strives to supply the correct power cable for each destina tion however it occasionally may be necessary to purchase power cords suitable for the local receptacles in use Figure 11 Power Supply oti s r E ae Figure 12 Underside of Power Supply showing the red Line Voltage Selector switch 13 Bagnoli System Component
12. ar strong electrostatic electromagnetic magnetic or radioactive fields Interference from external sources may decrease the signal to noise ratio or result in corrupted data This device may cause electrical disturbances in sensitive equipment within its operating environment Connect only to Delsys approved devices Connecting a patient to high frequency surgical equipment while using Delsys EMG systems may result in burns at the site of the EMG sensor contacts Immediately discontinue device use if skin irritation or discomfort occurs Immediately discontinue device use if a change in the device s perfor mance is noted Contact Delsys technical support for assistance Delsys Inc guarantees the safety reliability and performance of the equipment only if assembly modifications and repairs are carried out by authorized technicians the electrical installation complies with the appropriate requirements and the equipment is used in accordance with the instructions for use Bagnoli EMG System User s Guide Important Information Device Information Complies with Requirements put forth by the Medical Device Directive 93 42 EEC Class I device Annex VII Type BF device IEC 60601 1 Isolated device Class II IEC 60601 1 Do not dispose this product with house waste Contact Delsys Inc for instructions on responsibly disposing this device This product should not be mixed with other commercial wastes
13. ection Features section of this manual 20 Bagnoli EMG System User s Guide Getting Started with the Bagnoli System Selecting Appropriate Amplifier Gains The knobs located on the front panel of the Main Amplifier Unit each control the gain of one channel Each knob can be set to one of the following options 0 This position forces the input to the channel to be the reference potential No EMG signals can be detected with this setting All channels not in use should be set to the 0 position to minimize the unwanted detection of noise and its detrimental effects asso ciated with channel crosstalk 100 This position sets the channel gain to 100 Gains of 100 should be used when recording abnormally large EMG signal ampli tudes Surface potentials ranging from 10 mV to 50 mV will result in output signal voltages of 1 to 5 Volts Using this gain on EMG signals lower than 10 mV will result in recorded sig nals of poor resolution Ik This position sets the channel gain to 1000 This is the nominal gain for typical surface EMG signals ranging from 100uV to 5 mV resulting in output voltage signals of 100mV to 5 Volts This setting provides the ideal resolution when sampling with 16 bit A D acquisition systems 10k This position sets the channel gain to 10000 and is not needed if a 16 bit measurement is made This extremely sensitive gain should only be selected when attempting to record particularly faint EMG
14. een V and V gt on the skin surface The sensor housing is constructed from durable polycarbonate and completely sealed It is also internally shielded to reject ambient electrical noise The sensor contacts are made from 99 9 pure silver bars measuring 10mm in length 1mm in diameter and spaced 10mm apart for optimal signal detection and consistency The curved enclosure geometry is designed to maximize skin contact and adhesion while minimizing the negative effects of sweat during vigorous activities 6 mmi 2 O EEE r 20m 71 Figure 5 DE 2 1 EMG Sensor Geometry Bagnoli System Components DE 3 1 Double Differential Surface EMG Sensor Optional The DE 3 1 EMG Sensor is not included in the standard Bagnoli EMG system and must be purchased separately It is specifically designed to reduce the presence of EMG crosstalk emanating from muscles underneath and adjacent to the muscle of interest The external dimensions of the sensor are identical to the stan dard DE 2 1 Sensors This sensor uses 3 bars instead of 2 how ever It works on the principle that a signal originating from a source further away some other muscle will arrive at adjacent detection surfaces with less relative latency than a signal which originates from the muscle beneath the sensor By performing two subtractions the signals with short relative latency those originating from distant sources will cancel out Visit our website at www delsys com for
15. eferences 34 Bagnoli EMG System User s Guide
16. erence Electrode e Only one Reference Electrode is required when collecting EMG signals The site should be an electrically inactive area on the skin surface e The EMG Accessory Kit includes disposable disc Reference Electrodes that provide a robust connection and superior con ductance These electrodes are lined with a conductive gel Conductive electrodes other than the ones supplied may be used as substitutes but note that performance may vary sig nificantly between manufacturers Consult the labeling of the supplied Reference Electrodes for details on their proper use Immediately discontinue use if skin irritation or discomfort occurs All Adhesive Sensor Interfaces and Reference Electrodes are for single use only Discard after using Reseal storage bag to maintain freshness Turning the System On The main power switch is located on the right edge of the Main Amplifier Unit front panel The switch is labeled with an I to indicate the on position and an O to indicate the off position or with an LED that illuminates in the on position The rocker switch is in the on position when the top half is depressed and in the off position when the bottom half is depressed It is normal for all of the LEDs on the front panel to illuminate for a brief moment when the unit is initially turned on If any of the LEDs do not turn off after 2 seconds have passed refer to the Error Det
17. ggering signals to manage and synchronize data collection These options are only available when using the EMGworks Acquisition and Analysis Package The four trigger signals are Start In Starts data collection on a 5V rising edge Stop In Ends data collection on a 5V rising edge Start Out Outputs a 5V pulse once data collection is started Stop Out Outputs a 5V pulse once data collection is stopped The recommended way to interface with the trigger port is to use the Trigger Module SP U02 which greatly facilitates the sig nal connections and the necessary signal conditioning Please refer to the Trigger Module User s Guide for operational and functional details For a detailed description of the triggering capabilities of the A D Data Acquisition Card please consult the National Instruments manual Figure 19 Trigger Module 25 Additional Bagnoli Hardware Features HD68 Connector Pinout The HD68 Connector was designed to connect the Bagnoli EMG System to a National Instruments A D Data Acquisition Card so that data acquisition can be controlled with EMGworks Soft ware Please contact Delsys for custom solutions regarding integration with particular measurement systems Delsys does not support the use of the HD68 Connector to connect the Bagnoli EMG System to any unapproved A D System Incompatible connections may result in damage to the Bagnoli system and or the data acquisition system 1 34 Si PP RRR
18. he skin surface and that the Reference Electrode is appropriately attached In North America line interference appears as a cyclic signal with a fundamental frequency of 60 Hz In Europe and other countries this cyclic signal has a fundamental frequency of 50 Hz The Bagnoli EMG System is set to detect the line frequency 23 Signal Quality Assurance Features of the destination country when manufactured The system will only detect deterministic signals so that 50 or 60 Hz compo nents of the EMG signal will not trigger the alarm Audible Buzzer Alarm d An audible buzzer alarm is included to aid in the monitoring of line interference and saturation errors When enabled the alarm will sound if at least one of the yellow LED indicators on the front panel illuminates This feature allows the user to recognize erroneous conditions without needing to see the LED indicators on the front panel The alarm is enabled and disabled by the rocker switch located beneath the loudspeaker symbol on the left edge of the Main Amplifier Unit front panel The alarm is enabled when the rocker switch is depressed towards the loudspeaker symbol and disabled when depressed away from the loudspeaker 24 Bagnoli EMG System User s Guide Additional Bagnoli Hardware Features Additional Bagnoli Hardware Features Trigger Port HL The Trigger Port on the rear panel of the Bagnoli EMG System allows the user to input and output tri
19. je Oo EEE EE EN 31 ee 31 RelesmeeElSclrogeSRable n ela 31 TIGGE PON sion a a 32 Trigger Port Timing Diagram pp 32 Component References rrannnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnuen 33 2 Bagnoli EMG System User s Guide Important Information Important Information Intended Use The Bagnoli EMG Systems are designed for research investi gational and scholarship purposes only Delsys products are not intended for measurement purposes or for use in the treat ment and diagnosis of humans Rx ONLY Contraindications DO NOT USE on Patients with implanted electronic devices of any kind including cardiac pace makers or similar assistive devices electronic infusion pumps and implanted stimulators DO NOT USE on irritated skin or open wounds DO NOT USE on Patients with allergies to Silver Technical Service and Support For information and assistance visit our web site at www delsys com Contact us at E mail support O delsys com tel 617 236 0599 Important Information Warnings and Precautions a gt oeeo Consult all accompanying documents for precautionary statements and other important information Consult accompanying user s guide for detailed instructions Keep the device dry The presence of liquids may compromise the safety features of the device Handle with care Sensitive electronic device Avoid static discharges Do not operate or store ne
20. nt There are two LEDs for each channel on the front panel of the Main Amplifier Unit to alert the user of these errors In addition there is an Audible Buzzer Alarm that indicates when there is any error This alarm can be disabled Saturation Level Detector This LED warns the user when the signal on a channel is at risk of being clipped due to amplifier saturation The Bagnoli EMG System is designed to operate with an output in the range of 5 V Due the amplitude variability of the EMG signal it is possible to saturate the amplifiers if the channel gain is set too high and this range is exceeded For this reason the Saturation Level LED is set to illuminate as a warning when the amplitude of the signal on the channel approaches 96 of the maximum range If the Saturation Level LED illuminates regularly the gain for that channel should be reduced by a factor of 10 Delsys recommends a gain setting of 1000 with a 16 bit A D system since this maximizes the available range and provides ample resolution Note that transient signals such as motion artifacts or static discharges may trigger the saturation alarm Line Interference Detector La This LED indicates the presence of excessive 50 or 60 Hz line interference in the channel Line interference is typically caused by poor sensor skin contact or by unconnected sensors To avoid the presence of line inter ference ensure that all EMG Sensor bars are in contact with t
21. r enabled audio buzzer alarm There is also an AUX setting for each channel which is designed for the use of Delsys Biosignal Sensors The analog channel outputs can be accessed via convenient BNC connectors or connected directly to an A D acquisition system via the high density D Sub HD68 connector located on the rear panel A triggering port located on the rear panel allows the user to start and stop data acquisition with an external signal or to output a trigger signal to synchronize other data collection equipment Figure 3 Bagnoli 16 Main Amplifier Unit 8 Bagnoli EMG System User s Guide Bagnoli System Components DE 2 1 Single Differential Surface EMG Sensor The DE 2 1 EMG Sensor subtracts EMG potentials detected at two distinct locations on the surface of the skin directly above an active muscle The EMG potentials are always measured with respect to the electric potential of a neutral site located away from the EMG muscle source This potential is detected by the Reference Electrode The sensor is designed using a parallel bar contact geometry for ensuring signal stability repeatability between recordings and optimal frequency content representation This versatile sensor is well suited for most EMG applications and ideal for both large and small muscles Vout Vi Va Figure 4 DE 2 1 Single Differential Surface EMG Sensor The surface EMG signal is the result of the potential difference betw
22. ranty This warranty is not transferable Bagnoli EMG System User s Guide Bagnoli EMG System Bagnoli EMG System The Bagnoli EMG Systems are available in 4 8 and 16 channel models and are designed to make the acquisition of EMG sig nals hassle free and reliable These units produce conditioned isolated analog signals which can be readily connected to all Motion Capture or stand alone data acquisition systems Select able gains built in signal quality checks and ultralight parallel bar sensors make Bagnoli EMG Systems practical in both lab and field environments Figure 1 Bagnoli 16 EMG System 3 Sensor 4 input Module Cable 2 Main Amplifier 5 InterModule cable 3 Input Module s 6 International Power Supply pa Jiss Figure 2 Bagnoli 8 left and Bagnoli 4 right EMG Systems Bagnoli System Components Bagnoli System Components Main Amplifier Unit This desktop unit supplies power to the EMG and Biosignal Sen sors and provides conditioning and management of the detected signals to produce robust outputs Each channel has a selectable gain which can be set to a factor of 100 1000 or 10000 At these gain settings the Main Amplifier Unit filters the signals to a bandwidth between 20 Hz and 450 Hz and checks for excessive amounts of line interference as well as channel clipping due to over amplified signals The presence of these errors is signaled via yellow LEDs and through a use
23. s EMGworks Package Optional The EMGworks Data Acquisition and Analysis Package includes all of the components necessary to control data acquisi tion using a Bagnoli EMG System and EMGworks on a PC or laptop e EMGworks Data Acquisition and Analysis Software e National Instruments A D Data Acquisition Card multiple options are available for PCs and laptops e National Instruments DAQmx Software e Output Cable Connects Bagnoli EMG System to A D Card aia Fon Pep ii brai Viner dso ai Te be p e ps iy sto TEE le Le a Pans od de de a e i iai om rare aoe MN mm tpm Sar Varna 3 s t d e G v r un ETE TETA Spey AA fu vege Pee 195 FOTS TEIT Spey EEE av rasge TETT i fe Ht s Running Set 1 of 3 Rep 1 of 5 faa img o aa im Vis 158 FEET mile tow G ia they b Bart i ai Ta nn Pepe bel rare Te 1208 En ee i z ny Vase BEN B aka i Bart l RA 2 f Fa J fis 4 n FY TT LE oe ae vr i ey vi Ve ar Fa forma Vi 220 tl ae Figure 13 EMGworks Data Acquisition and Analysis Package 14 Bagnoli EMG System User s Guide Getting Started with the Bagnoli System Getting Started with the Bagnoli System All input and output connections of the Main Amplifier Unit are located on the rear panel of the assembly The following sections give a detailed description of
24. s Usage of the interface promotes a high quality electrical connection between the sensor bars and the skin minimizing motion artifacts and the ill effects of line interference To ensure a strong bond with the skin it is advised to remove excessive hair and wipe the skin area and the EMG Sensor with isopropyl alcohol to remove oils and surface residues Allow the skin to dry completely before applying the interfaces 1 Remove the interface from its gt strip and apply to the sensors a N hig 2 Remove liner to expose the Z adhesive NG 3 Apply to the skin site Do not reposition once skin contact is made Figure 17 Application of the Adhesive Sensor Interface Adhesive Sensor Interfaces are for single use only Immediately discontinue use if skin irritation or discomfort occurs All Adhesive Sensor Interfaces and Reference Electrodes are for single use only Discard after using Reseal storage bag to maintain freshness gt 19 Getting Started with the Bagnoli System Connecting the Reference Electrodes REF Vv AN A Connect the Reference Electrode Cable to the Input Module using the banana jack Apply the Reference Electrode to the skin considering the points below e A high quality electrical connection between the Reference Electrode and the skin is critical for obtaining reliable EMG signals Be sure to clean and if necessary shave the skin prior to affixing the Ref
25. sed with the EMG works Signal Acquisition and Analysis Package It used to con nect the Bagnoli EMG System to a National Instruments A D Data Acquisition Card so that data acquisition can be controlled with EMGworks Software To set up the system for use with EMGworks the National Instruments DAQmx Software must first be installed on the computer that will be used for data acquisition The National Instruments A D Data Acquisition Card can then be installed Consult the documentation provided with the National Instruments A D Data Acquisition Card for software and hardware installation instructions The Output Cable provided with the National Instruments A D Data Acquisition Card then connects the Main Amplifier Unit HD68 Connector to the A D Card EMGworks must be installed on the computer after the National Instruments Software and A D Card are properly installed Refer to the documentation provided with EMGworks for detailed installation instructions BNC Connectors The BNC Sockets can be used to easily connect the Main Amplifier Unit to an oscilloscope or other data acquisition devices 16 Bagnoli EMG System User s Guide Getting Started with the Bagnoli System Connecting the Input Modules 1 16 HL The Input connector is located in the top left corner of the Bag noli System rear panel It is labeled with a connection symbol and reads 1 4 for the Bagnoli 4 1 8 for the Bagnoli 8 and 1
26. te Ait er OOOOO Operating Temperature 15 C to 40 C Bagnoli 4 Main Amplifier Unit 205 mm T0837 860 mW ESV Bagnoli 8 Main Amplifier Unit 205 mm 108m x ST mi 1200 mW Bagnoli 16 Main Amplifier Unit 306 im x 152 mx TO m 2500 mW EO 29 Specifications SC P02 SC P03 Power Supply for Bagnoli Systems 160 mim x 65 mx 90 mn VA Voltage Output 6VDC Fuse Replacement 115V 400mA 250V Type T 5x20mm Fuse Replacement 230V 200mA 250V Type T 5x20mm DE 2 1 Single Differential Surface EMG Sensor Sensor Contacts 2 silver bars 10 mm x 1 mm diameter Contact Spacing 10 mm 0 394 198 mm SA35 m Preamplification OVN V V oo 92 dB un 84 dB minimum Power 18 mW 18 mW quiescent ee Number of Conductors 4 Tsrelded DE 3 1 Double Differential Surface EMG Sensor Optional Sensor Contacts 3 silver bars 10 mm x 1 mm diameter Contact Spacing 10 mm double differential configuration 198 mm x 535 mn Preamplification 10 V V 10 V V per differentiator differentiator 84 dB minimum Power 41 mW 41mW quiescent ee a 30 Bagnoli EMG System User s Guide Specifications Input Module Number of Sensor Inputs 4or8 55 mim BT SD 100 Input Cable InterModule Cable Reference Electrode Cable Conductor Count Single 31 Specifications Trigger Port Gem Required Connector Manufacturer LEMO Part Number
27. te correct orienta tion of connectors before mating Only use sensors that have been approved by Delsys Connecting unapproved sensors to the Bagnoli System constitutes an invalidation of the Delsys Warranty and may result in personal injury and or permanent damage to the system or the sensors The Main Unit and the Input Modules are not water resistant Under no circumstance should the units be exposed to water or any other type of liquids Caution The risk of electric shock exists if the Main Unit is operated while in contact with liquids 27 Maintenance and Care of the Bagnoli System DE Series Surface EMG Sensors The DE Series Surface EMG Sensors are encased in a sealed polycarbonate case The following points should be kept in mind when handling the sensors e All sensors should be visually inspected before each use to ensure that no mechanical deterioration has occurred e The sensors can be cleaned and sterilized with a damp cloth and mild detergent with isopropyl alcohol swabs or with a 70 isopropyl alcohol solution It is crucial that the sensor contacts remain clean at all times e The sensors are completely sealed and are water resistant These can be used on damp skin surfaces and in the presence of sweat without compromise to safety sensor integrity or operation The sensors should never be completely sub merged in any liquid e The sensors contacts are made of pure silver and are quite soft
28. the steps necessary to set up the system for data acquisition 1 16 Output oe Er BNCs Figure 14 Rear panel view of Bagnoli 16 EMG System showing the input and output connectors Connecting the Power Supply 6 VDC The Power Supply is connected to the circular DIN socket on the left side of the rear panel labeled 6 VDC Note that the con nector is polarized so that it can only be inserted with the correct orientation The 3 prong line voltage plug of the power supply should be inserted in a properly functioning and grounded power supply outlet Always ensure that the Line Voltage Selector on the Power Supply is correctly set to the mains voltage of your location An incorrect setting will cause the fuse to expire Bagnoli EMG Systems are approved for use only with the power supply provided Using any other power supply may damage the system and create hazardous situations Always use an IEC320 power cable and a properly functioning mains receptacle for powering the Bagnoli EMG System Non conforming plugs can result in safety hazards 15 Getting Started with the Bagnoli System Connecting the Output Signals gt The Bagnoli EMG System outputs single ended analog voltage signals in the 5 Volt range The rear panel of the Main Ampli fier Unit hosts two types of output connections an HD68 Con nector and BNC Sockets HD68 Connector for EMGworks Package The HD68 Connector was designed to be u
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