User & Service Manual - Frank`s Hospital Workshop
Contents
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4. Appendix C Improvement Suggestion Form iii iv This page intentionally left blank Manual Revision Record This record page is for recording revisions to your OA ES User amp Service Manual that have been published by METRON AS or its authorized representatives We recommend that only the man agement or facility representative authorized to process changes and revisions to publications e make the pen changes or insert the revised pages e ensure that obsolete pages are withdrawn and either disposed of immediately or marked as superseded and placed in a superseded document file and e enter the information below reflecting that the revisions have been entered Rev No Date Entered Reason Signature of Person Entering Change 1 30 1 4 30 01 General Update vi This page intentionally left blank 1 1 QA ES Descrip tion 1 2 QA ES Specifications 1 Introduction This chapter describes the METRON QA ES Electrosurgical Ana lyzer including its features and specifications The METRON QA ES Electrosurgical Analyzer QA ES is a preci sion instrument designed to perform tests on high frequency electro surgical units ESU in accordance with national and international standards and is designed to be used by trained service technicians Tests include e automatic power distribution measurement e crest factor measurement e RF l
5. E Input Measuring Cable Red Alligator Clamp Black Alligator Clamp Red Carrying case PRO Soft QA ES software PRO Soft QA ES DEMO PRO Soft QA ES User Manual Storage P N P N P N P N P N P N P N 11452 11461 11462 14100 12200 14201 14225 Store in the carrying case in dry surroundings within the tempera ture range specified There are no other storage requirements Periodic Inspection The unit should be calibrated every 12 months This page intentionally left blank 2 1 Receipt Inspec tion and Return 2 2 Setup 2 Installation This chapter explains unpacking receipt inspection and claims and the general procedures for QA ES setup 1 Inspect the outer box for damage 2 Carefully unpack all items from the box and check to see that you have the following items QA ES Electrosurgical Analyzer PN 14010 E Input Measuring Cable Black PN 11411 B E Input Measuring Cable Red PN 11411 R Alligator Clamp Black PN 11412 B Alligator Clamp Red PN 11412 R Power Cord No PN OA ES User and Service Manual PN 14025 3 If you note physical damage or if the unit fails to function ac cording to specification inform the supplier immediately When METRON AS or the company s representative is in formed measures will be taken to either repair the unit or dis patch a replacement The customer will not have to wait for a claim to be investigated
6. 20mA 11521090 160mA 20 40mA User Interface and Display Check that the display and the user interface are working normally Cooling Fan Check that the fan increases speed when you press on Start F3 in the main menu and that the speed de creases about 10 seconds after you press STOP F3 Serial and Parallel Interface QA ES can be connected to a printer and a PC Check that booth the serial and parallel inter faces work Foot Switch Connect a multimeter to the foot switch output on the QA ES green Check that the relay for the foot switch is connected when you press START F3 Fixed Load Measure the value of the fixed load with a multi meter blue Required value 200 ohms 10 ohms Housing Isolation Use a multimeter to check the isolation be tween the housing and the measuring inputs It is important to check all of the terminals on the housing Var Load Fixed Load and Foot Switch Offset Voltage Short circuit the RF input on the sampling unit 34 All the measurements and reference values in this section refer to the sampling unit Measure the voltage at each of the following points and adjust them to the following values with the potentiometers specified between brackets The voltage should be set as close to OV as possible TP1 GND TP3 TP2 TP4 GND TP5 GND TP6 GND no adjust R3 R2 R1 R4 OmV v100 OPVV50 OoVV100 OdVv500 OmV v5mV ov ov ov ov Load Resistance Set the QA ES in calibration
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9. 15 Power distr 300 ms 350 ohms 566 ma 114 W 549 V 1 4 16 Power distr 300 ms 375 ohms 543 mA 113 W 628 V 1 5 17 Power distr 300 ms 400 ohms 529 mA 112 W 587 V 1 4 3 6 Foot Switch Output A Foot Switch Output is activated by use of relays K11 and locat ed on the right side of the unit This is used to trigger the foot switch input on the ESU being tested 3 7 Main Switch On Off The QA ES has to be turned off for at least 5 seconds before turning it on again to allow the reset circuit to unload 4 1 Power Distribution 4 2 HF Current Leakage 4 ESU Tests with QA ES This chapter explains the tests that can be conducted by the QA ES on an ESU as well as the features available with the PRO Soft QA ES software accessory This test checks the power provided by the ESU over a range of load resistances The QA ES allows you to specify a range of loads over which you test the ESU output power to see if it is within the speci fied limits Per IEC 601 2 2 the power output cannot be reduced by more than 10W or 5 of the minimum power output level Per ANSI AAMI HF18 1993 the power output must be within 20 of the ESU manu facturer s specifications Load Resistance Range Equipment IEC ANSI AAMI Monopolar 100 1000 ohms 50 2000 ohms Bipolar 10 500 ohms 10 1000 ohms Test setup for ESU power distribution test Active 5 Green ESU Foot Switch Neutral The QA ES simulates the foot switch in
10. Singl Oper This test checks to see whether or not the active and dispersive leak age currents are within acceptable limits There are four test setups to accomplish this testing Per IEC 601 2 2 and ANSI AAMI HF18 1993 the ESU shall be op erated at the maximum output setting in each operating mode The limits for the acceptable leakage currents depend upon the test con figuration Test Configuration Limits of Acceptable Leakage Current Measured on electrodes The leakage current should not exceed 150 mA Test Configuration Limits of Acceptable Leakage Current Bipolar The leakage current should not exceed 1 of the maximum bipolar rated power output Measured at equipment The leakage current should not exceed 100 mA terminals 1 Grounded HF Equipment Measurements of the HF cur rent leakage The ESU is grounded The test load is 200 ohms and the ESU must be operating at maximum power The current leakage measured directly at the instrument s terminals must not exceed 100 mA Test setup in compliance with IEC 601 2 2 sec 19 101a test 1 fig 102 and sec 19 102 Adopted by ANSI AAMI HF18 1993 i QA ES Active White Earthing contact Test setup in compliance with IEC 601 2 2 sec 19 101a test 2 fig 103 and sec 19 102 Adopted by ANSI AAMI HF18 1993 QA ES Earthing contact Neutral 2 HF Isolated Equipment Measurements of the HF current
11. by the supplier The customer should place a new purchase order to ensure delivery 4 When returning an instrument to METRON AS or the company representative fill out the address label describe what is wrong with the instrument and provide the model and serial numbers If possible use the original packaging material for return ship ping Otherwise repack the unit using a reinforced cardboard box strong enough to carry the weight of the unit atleast 5 cm of shock absorbing material around the unit nonabrasive dust free material for the other parts Repack the unit in a manner to ensure that it cannot shift in the box during shipment METRON s product warranty is on page ii of this manual The warranty does not cover freight charges C O D will not be ac cepted without authorization from METRON A S or its repre sentative 1 Equipment connection is as shown in the typical setup below for Power Distribution Test A CAUTION The QA ES uses a 3 wire power cord and plug for the user s safety Use this power cord in conjunction with a properly grounded electrical outlet to avoid electrical shock 2 3 PRO Soft QA ES Printer Active ESU Neutral Foot Switch The QA ES can simulate the foot switch in Singl Oper 2 If you are using an oscilloscope attach the BNC cable to the Scope Output connector located on the front of the QA ES 3 If PRO Soft QA ES is being u
12. high frequency radia tion The QA ES Sampling Unit is placed inside the internal protection box of the instrument The card is fixed vertically on the right side of the protection box The unit comprises power supply measuring device and interfaces towards the Processor Board and the Load Board The Sampling Unit converts the applied RF signal to a low frequen cy signal proportional to the mean square of the RF signal The peak value of the applied signal is also measured The measuring values are sampled with a 12 bits A D converter and the data is transmitted to the Processor Board for calculation and presentation on the dis play 1 Power Supply See QA ES Processor Board Schematic Diagram 1 The Sam pling Unit receives 10 VDC and 10 VDC from the Load Board via J1 Voltage regulators U17 and U19 provide respec tively 6V and 6V for the RMS DC converter Voltage regula tors U18 and U20 provide the peak detector with 9V and 9V Voltage regulator U16 supplies the opto coupler in the interface towards the Processor Board with 5V 2 Measuring Device The measuring device consists of two blocks e aRMS DC converter for current measuring and e a peak detector for measuring the peak voltage in the sig nal The peak detector is divided into two actions for measuring the positive and negative peak values Input Filtration At the measuring system input the incoming signal is filtered down to a lower l
13. mode by hold ing the function key F1 while switching the instrument ON Continue to press on the key until the main menu appears Con nect a multimeter hp 34401A to the Var Load input The re sistances are calibrated by turning the small wheel until the dis play shows a value as close as possible to the value read To calibrate the next resistance press on UP F1 or DOWN F2 Measuring Resistance Set the QA ES in calibration mode Before mounting it the measuring resistance R1 on the Load Board should be measured with hp 34401A The measured val ue should be noted near R1 on the Load Board Use this value for R1 in the following equation and for Meas Reas in the calibration menu by using the wheel Press QUIT F5 to save calibrated values R1 100 Meas Res R1 100 Measuring Device Measuring The Effect Set the QA ES in test mode by holding F2 while switching the power on Connect the signal generator to the RF input on the sampling unit The signal applied is a pure sine of 500 kHz URE 3 is connected in parallel with the sampling unit to measure the applied signal Press START F3 and read the measured effect in dB Vary the level of the ap plied signal from 16 dBm to 10 dBm and find the average value for the difference between the value read on the QA ES and the applied value measured with URE 3 Use the term be low to calculate a linear percentage value from the difference value in dB KdB A
14. system if the fault is due to a manufacturing defect In no event will METRON or its lo cal representatives be liable for direct indirect special incidental or consequential damages arising out of the use of or inability to use the QA ES Electrosurgical Analyzer even if advised of the possi bility of such damages METRON or its local representatives are not responsible for any costs loss of profits loss of data or claims by third parties due to use of or inability to use the QA ES Electrosur gical Analyzer Neither METRON nor its local representatives will accept nor be bound by any other form of guarantee concerning the QA ES Electrosurgical Analyzer other than this guarantee Some ju risdictions do not allow disclaimers of expressed or implied warranties in certain transactions there fore this statement may not apply to you ii Table of Contents AAA A NT 2 erla A AAA Eege 3 Operating BP EE 4 ESU Wests with QAC ES EE 5 Control and Calibration erret tete amu ed reinicio nina fon outta eesosa ba an peine pda 6 Component Functions and Parrts Appendix A Diagrams wa ke es eer t osos teure tne tine eoe enne toro ono FAS eaae FN G SDN YNG nente nae sns Un ee eor Pau e Ua ra ENEE Appendix B Error Report Form
15. the probe are connect ed with the high voltage generator The following mathematical formula presents the applied effect in dBm as a curve of the ef fect on URE 3 R2 R1 Resistance in the high voltage probe Specified on the probe Nominal value 47 kohms H Dj door R2 Measuring resistance in the high voltage probe Speci fied on the probe Nominal value 37 5 ohms dBcoeff 20 lo The measuring accuracy of the QA ES should be checked for the following resistance values and the corresponding signals applied NOTE easured on URE3 Remember to set the ref dBm erence impedance in 52 0 54 0 URE 3 to the same value 50 0 53 0 as the load resistance used for measuring 47 0 52 0 Calculate e difference between QA ES and URE E e varne for Q gain in the calibration menu by following the instructions given before under item 4 in this section Requirement P ildBm P dBm lt 017dB a gt SOMA In linear form this corresponds to p m P qa es m 6 Scope Output Connect the high voltage generator to Var Load and the oscilloscope to Scope Output Set the QA ES to scope output is not cali continuous mode and start measuring by pressing on Start Ac peed tivate the high voltage generator and measure the peak to peak voltage on the oscilloscope Check that this value equals the current flow read on the QA ES Nominal value 4 5 V 0 4 V A lt 4 Remember that the 6 1 P
16. 16 74HC574N 74HCO5N MC145406P LM337LZ LM317T ICL7662CPA Mc34064P 5 Nel D32 49 X24C02P BC547B BD140 1N4148 1N4002 1N5819 4A 200v Optrex DMF 5005N EW Bourns ECWIJ B24 BC0024 Gul 3mm Sie LY3360 K Red 3mm Sie LR 3360 FJ 22R 190 O 5W 240R 196 O 5W 330R 196 O 5W 750R 196 O 5W 1K0 1 O 5W 2K2 190 O 5W 6K8 1 O 5W 10K 1 O 5W 22K 1 0 5W 100K 1 O 5W 5x2K2 SIL 8x4K7 SIL 8x10K SIL 8x47K SIL 20V 10K 1 torn Cermet 100nF 50V 10F 25V 220F 25V 2200F 25V 1F 35V Murata DSS306 91YSS102M1 4pin Berg 71991 410 PRPRPRPRPOPARPROAA GPPPEROPRPRRPRRPRENDODRPRRENPRNPRRRRRPRRAPRNRRRRRRRRORR he R2 R7 R12 R18 R19 R3R13 R1 RP4 RP2 RP3 RP1 R6 R15 C8 C2 C3 C5 C6 FI1 FI19 U1 DISP1 COMPONENT PART Display connection Board pin base Board pin base Board pin base Pin base for display Pin base Screw clip basic part Screw clip Touch keys Cover for touch keys Safety holder Safety fuse Heat sink Screws Nuts Nylon screws Nylon nuts SAMPLING UNIT Printed circuit board Op amp High Current Op amp High Speed Op amp Railto Rail Op amp Dual Analog Multiplier AiD converter 12 Bit 250 kHz Octal Analog Switch Array Shift Register Quad Nand port Opto Coupler Voltage Regulator Voltage Regulator Voltage Regulator Voltage Regulator Voltage Regulator Transistor Transistor Diode Zener diode Schottky diode Crystal Resistor Resistor Resistor Res
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18. ELFA 43 646 26 ELFA 43 646 42 R141306000 RI14082000 Flat 4 8mm JHSupp 404 171 Flat 4 8mm JHSupp 404 137 Flat 4 8mm Flat 4 8mm Panasonic FBA09A12H1A Sunon FG 9 C amp K V802 12 SS 05 Q Corcom ED4 Schurter 0031 1081 FEF Schurter 0031 1363 FIO C amp K DM22 J1 2 S2 05 N Q PERPNNERPRRRPENNRRRPRENRRRRR 25 polt 44 cm 9 polt 44 cm 16 polt 33 cm 45 cm Farn 125326 DIN 965 M4x12 DIN 965 M3x6 DIN 84A M3x10 DIN 84A M3x8 DIN 84A M4x10 DIN 84A M4x35 DIN 7985 M2 5x10 DIN 7985 M3x6 DIN 7985 M3x8 bBBoesnDeoR oe o COMPONENT PART TYPE VALUE OTY _ DIAGRAM REFERENCE Screw recessed head poz DIN 7985 M3x10 Screw recessed head poz DIN 7985 M4x30 Nut M3 Nut M4 Safety nut M4 Spring washer M4 Washer M4 12mmg DIN 9021 Spacer for fixing the front plate Contact plate RF protection box Front plate w 5 screws for circuit board Rear plate Front foilv PROCESSOR BOARD Printed circuit board Micro Module Latch Port RS 232 driver Voltage Reg Voltage Reg V converter V comparator V converter EEPROM Transistor Transistor Diode Diode Schottky diode Bridge LCD display Encoder LED LED Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor pack Resistor pack Resistor pack Resistor pack Varistor Trimpot Multilayercond El lytt cond El lytt cond El lytt cond Tantal cond EMI Filter PCM CIA slot Display connection Elprint ARO75 16MM
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21. ORWAY 1345 Monroe NW Suite 255A 30 rue Paul Claudel Travbaneveien 1 Grand Rapids MI 49505 91000 Evry France N 7044 Trondheim Norway 1 888 863 8766 Phone 33 1 6078 8899 Phone 47 7382 8500 1 616 454 3350 Fax 33 1 6078 6839 Fax 47 7391 7009 support us metron biomed com E mail info metron fr E mail supportQmetron no From name Address Error Report Product Version Serial no Description of the situation prior to the error Description of the error METRON AS internally Comments Received date Correction date Critical Normal C 1 USA FRANCE NORWAY 1345 Monroe NW Suite 255A 30 rue Paul Claudel Travbaneveien 1 Grand Rapids MI 49505 91000 Evry France N 7044 Trondheim Norway Phone 1 888 863 8766 Phone 33 1 6078 8899 Phone 47 7382 8500 Fax 1 616 454 3350 Fax 33 1 6078 6839 Fax 47 7391 7009 E mail support us metron biomed com E mail info metron fr E mail support metron no From Phone name LL uu o V LL LL Address _ _ _ A e AEN EE EES ENEE E mail 0 Date Improvement Suggestion Product Version Description of the suggested improvement METRON AS internally Comments Received date Correction date Ref No Critical Normal Minor USA FRANCE NORWAY 1345 Monroe NW Suite 255A 30 rue Paul Claudel Travbaneveien 1 Grand Ra
22. QA ES User Service Manual QA ES Electrosurgical Analyzer METKON awa Copyright O 2001 by METRON All rights reserved METRON USA 1345 Monroe NW Suite 255A Grand Rapids MI 49505 Phone 1 888 863 8766 FRANCE NORWAY 30 rue Paul Claudel 91000 Evry France Phone 33 1 6078 8899 Travbaneveien 1 N 7044 Trondheim Norway Phone 47 7382 8500 Fax 1 616 454 3350 Fax 33 1 6078 6839 Fax 47 7391 7009 E mail support us metron biomed com E mail info metron fr E mail support metron no Disclaimer METRON provides this publication as is without warranty of any kind either express or implied including but not limited to the implied warranties of merchantability or fitness for any particular pur pose Further METRON reserves the right to revise this publication and to make changes from time to time to the content hereof without obligation to METRON or its local representatives to notify any person of such revision or changes Some jurisdictions do not allow disclaimers of expressed or im plied warranties in certain transactions therefore this statement may not apply to you Limited Warranty METRON warrants that the QA ES Electrosurgical Analyzer will substantially conform to pub lished specifications and to the documentation provided that it is used for the purpose for which it was designed METRON will for a period of twelve 12 months from date of purchase replace or repair any defective
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24. T PART Resistor Resistor Resistor Resistor Resistor Resistor Resistor Trimpot Multi Chip ind Chip ind Cond Multil pFO 596 Cond Multi Cond Multi Cond Multi Cond Multi Cond Multi Cond Multi Cond Multi Tantal cond Tantal cond El lytt cond Condenser Printer board contact SMB coax conn Stifflist kort 18 36 pin base Screw Nut LOAD BOARD Printed circuit board Voltage Regulator Resistance bridge Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor El lytt cond El lytt cond Circuit driver High voltage relay 63V TYPE VALUE 3K6 190 1 8W 4K7 1 1 8W 10K 0 25 1 8W 18K 0 25 1 8W 22K 0 25 1 8W 47K 0 25 1 8W 10M 1 1 8W 10K 1096 296 47pF 5 63V 100pF 5 63V 150pF 5 63V 470pF 5 63V InFO 5 63V 10nF 10 63V 100nF 10 63V 1 0 F 20 15V 10F 20 15V 10F 20 50V NC 6 polt hunn Right angle PCB recept 16 pin 36 pol testpoints split M3x6 Elzink Pan M3 Elzink Elprint AR 061B1 LM317T 4A 200V GBU4D 3KO 5 50W 9R1 5 100W 15R 5 100W 620R 5 100W 47R 5 175W 100R 5 175W 200R 5 175W 330R 5 175W 470R 5 175W 1KO 5 175W 2RO 1 10W 10R 0 1 O 6W 26R1 0 1 0 6W 34R8 0 1 0 6W 82R 0 1 0 6W 100R 0 1 0 6W 51R 1 0 5W 240R 1 0 5W 750R 1 0 5W 10F 2 5V 25mmrad 2200F 25V rad UCN5842A Gunth
25. V V comparator U10 monitors the 5V voltage and sends a reset signal to the microprocessor when the voltage drops under 4 75 V Transistor Q4 controls the voltage to the compressor at the rear of the QA ES The compressor is connected to J5 The micro processor issues a digital signal at PWMA depending on the ventilation speed desired Transistor Q2 controls the basic pow er in Q4 When Q4 is turned off low ventilation speed the compressor receives power via transistors R8 and R17 leading to a voltage drop 2 Microprocessor System See QA ES Processor Board Schematic Diagram 1 The mi croprocessor system is in PCMCIA card format U1 It com prises a MC68HC16 microprocessor with I O 256K Flash ROM and 64K RAM It can be reprogrammed or replaced when up grading the software The processor s I O includes an asynchro nous serial port ACTA synchronize serial port parallel I O A D converter and PWM output In addition 8 bit of the data bus are accessible as well as chip select lines for direct access to the external I O The processor is timed with a 16 67 MHz timer frequency con trolled by an internal crystal in the component To check the timer frequency a 1024 Hz square signal is applied to one of the PWM outputs The signal can be measured at pin TP 1 UI3 is an EEPROM connected to the processor component via a parallel I O Ul3 saves the calibration parameters for the Sam pling Unit The parameters can be stored in
26. ach ESU being tested at your facil ity Sequences can then be used independently or can be attached to a checklist written procedure and equipment data in the form of a test Protocol The equipment data can be entered manually into the protocol or it may be retrieved by PRO Soft from a database program or other equipment files Protocols can be created easily for each ESU in your inventory and stored for use Test protocols with results can be printed or stored on disk and the results of test ing can be sent back to the equipment database to close a work order and update the service history This page intentionally left blank 3 Operating QA ES This chapter explains the operating controls switches and menus of the QA ES and details how to use them in ESU testing 3 1 Control Switches and Connections Front Panel 5 4 2 3 1 METReN QA ES On SE METRON QR ES o EI 7 ELECTROSURGICRL ANALYZER E REVISION X XX Off Cancel Enter Power o RF detect 4 Electrosurgical Analyzer O Remote scope Difput 6 7 8 9 1 Power Switch Turns the power on and off 2 Encoder Sets values according to the specified range and choose between different operations measurement ranges 3 Enter Admits newly specified information 4 Cancel Cancels a new value and returns to previously cho sen value 5 LCD Display Shows messages test results and function menus 6 Function Keys FI F5 a
27. ation Diagram non nonnn eene nenne B 2 Schematic Diagram Part 1 Processor Board B 3 Schematic Diagram Part 2 Processor Board B 4 Sampling Unit Component Location Diagram nee enne B 5 Schematic Diagram Part 3 Sampling Unit a B 6 Schematic Diagram Part 4 Sampling Un B 7 Schematic Diagram Part 5 Sampling Un B 8 Load Board Component Location Diagram B 9 Schematic Diagram Part 6 Load Board B 10 BiyzTIv6 T90UY andino welbelp onewayos preog peol reubis Juauwaunsean e At e JezAjeue e9161nso1199 3 S3 vO UO nt ki 4 33 MOT or 6 oey m mno 30 8 aze O E CN ANA Ya z uno 380u1s een
28. delay from 200 ms to 4000 ms in steps of 50 ms from 200 ms to 1000 ms 100 ms from 1000 ms to 4000 ms Save the chosen delay in Delay under the STATUS field by pressing ENTER E5 Press CANCEL F4 to undo START F3 When you press on START the test procedure will begin and the text in the field Oper will change from Ready to Measuring If the unit is set to the position for a REM test this text will change from Ready to Incr res Press STOP F3 to stop the test procedure SETUP F4 Here you can set the power distribution level for start stop and step in ohms Pwr dist Start load xxxx ohms Pwr dist End load XXxx ohms Pwr dist Step Size Xxx ohms F4 F5 Choose the Start load by using KNOB PARAM F4 see stars Use the encoder to set the level Save the level by press ing ENTER F5 Press CANCEL F4 to undo Go to End load and Step Size and repeat the same procedure Pwr distr Start load is the first load to be used during the measurements it can be set from 10 ohms to 2100 ohms with steps of 25 ohms starting at 25 ohms onwards Pwr distr End load is the last load used in the measurements R can be set from 525 ohms to 5200 ohms with steps of 25 ohms from 525 to 2500 ohms and step of 100 ohms from 2500 ohms to 5200 ohms Pwr distr Step Size is the load set with steps of 25 50 100 and 200 ohms Press QUIT MENU F5 to return
29. dependently of the processor component so that the QA ES does not have to be re calibrated when upgrading the software Function Keys See QA ES Processor Board Schematic Diagram 1 The QA ES is operated by touch keys and a universal digital encoder The encoder or knob will be given different functions de pending upon the parameters that are to be changed The en coder is connected to two touch keys with unchangeable func tions ENTER and CANCEL The QA ES is operated from 5 soft keys linked to menus shown on the display Latch U2 buffers data from touch keys SW1 SW7 If you press one of the keys power will flow into the base at Q1 via RP1 thus controlling an interrupter input on the processor unit When the interrupter input is activated the processor reads latch U2 latch to find out which key was pressed The same interrupter input is activated via diodes D1 and D2 when operating the en coder The encoder is read via I O ports on the processor com ponent Display See QA ES Processor Board Schematic Diagram 1 The QA ES is equipped with a 240 x 64 dot graphic display with a built in character generator When in character mode the display shows 40 x 8 characters The display is controlled by the pro cessor unit via the data bus The display s contrasting voltage is regulated with voltage regulator U12 Voltage and contrast are controlled with the potentiometer R15 This is the only point of adjustment at the pr
30. eak measurement and e return electrode monitor REM test Testing is accomplished by measuring the ESU output against test loads that are set and adjusted in the QA ES The QA ES can auto matically execute a power distribution test with a load resistance ranging from 10 ohms to a maximum of 5200 ohms The automatic measuring of the QA ES comprising crest factor measurements with a bandwidth of 10 MHz ensures that the test result is reliable and reproducible Test results shown in the QA ES s LCD display can be printed out directly or transferred to a PC via the PRO Soft QA ES test auto mation software PRO Soft lets you design test protocols remotely control the QA ES and store the test results Generator Output RF LEAKAGE From active electrode or neu tral plate with an open or closed load circuit Mode Of Operation Manual or user programmable Can be re motely controlled with PC utilizing accessory PRO Soft QA ES software and RS 232 com munication cable connection Measurements True RMS value of applied waveform RMS Bandwidth 30 Hz to 10 MHz 3 dB Low Frequency Filter 100 Hz filter to avoid low frequency distur bance and or interference Current 20 mA to 2200 mA Current Accuracy 20 2200 mA x 296 of reading Load Resistance 10 2500 ohms in steps of 25 ohms Q dc 1 3 General Information Additional Fixed Load Crest Factor Range Foot Switch Output Peak To Peak Voltage Oscillosco
31. er 33911290246 NYPNWNEPNNANNENN 20 REN ww NNPPPHPNRPNHPPHPPPmPRARHPBHBHBHBHBHBHBHB DIAGRAM REFERENCE R76 R49 R59 R62 R69 R70 R78 R80 R86 R88 R30 R31 R39 R51 R29 R32 R85 R66 R74 R1 R2 R3 R4 LI L2 C22 C2 C3 C11 C46 C47 C5 C7 C6 C27 C28 C10 C11 C23 C26 C29 C31 C34 C36 C37 C39 C41 C42 C44 C45 C60 C4 C8 C9 C12 C2 C35 C71 C72 C30 C48 C49 C52 C53 C56 C59 C61 C70 C14 C16 C17 C18 C20 C13 C15 C54 C55 C40 C43 C50 C51 J1 J2 J4 J3 TP1 TP18 R8 R9 R17 R18 R6 R7 R10 R11 R12 R13 R14 R1 R30 R20 R22 R21 R26 R29 R19 R25 R31 R23 R24 C3 C1 C2 U2 U3 KI COMPONENT PART Relay 24V Relay 24V 2 pol Relay 24V 2 pol Toroid SMB coax conn SMB coax conn Printer board contact Printer board clip Safety holder Safety fuse High voltage cable Coax cable RG174 Coax terminator Plastic Spacer Plastic Spacer Nylon Screw Screw pin Dekk kappe todelt Bracket for power resistor TYPE VALUE Takamisawa Takamisawa RY 24W OH K Takamisawa RY 24W K 3F3 125x75x5 mm ELFA 58 755 21 Straight plug crimp Straight PCB recept 6 polt hannPhoe 3 polt Phoe Farn 134477 600mAT Farn 150202 35 cm 10 m Q 100 m 40 cm Farn 125326 Double leg right ang ENISO 3x25 ENISO 3x20 M4x07x12 mm DIN 553 M4x22 mm DIAGRAM REFERENCE L1 J13 J1 J2 J14 F1 F2 F1 F2 11 12 This
32. er between the processor system and the rest of the electronics the Sampling Unit s F1 terminal controls the relays choosing the load and at tenuator values on the Load Board Scope Output The scope output is based on a measuring Transformer L1 mounted on the Load Board The measuring Transformer is ter minated with a 50 ohms resistance R31 Foot Switch The output foot switch is based on a relay K11 and is used in triggering the ESU being tested HOUSING Transformer ring core 1x12V 1A Transformer E core 10kV 2x9V D Sub 25p female D Sub 9p male Flat cable contact 10 polt Flat cable contact 16 polt Flat cable contact 26 polt BNC Straight bulkhead jack SMB coax conn Straight plug Security contact Red Security contact Black Security contact White Security contact Green Ventilator 12 VDC 92mm Protection grate for ventilator Turning knob Voltage regulator Apparatus input with netfilter Safety fuse 5x20 mm Safety fuse 5x20 mm Net switch Cable shoe ABIKO Ring cable shoe Screw dimension M3 Flat cable Flat cable to printer Flat cable to serial port Flat to measuring board Coax cable IRG174 Countersunk flat headed screw Countersunk flat headed screw Screw slot SH Screw slot SH Screw slot SH Screw slot SH Screw recessed head poz Screw recessed head poz Screw recessed head poz TYPE VALUE OTY _ DIAGRAM REFERENCE ULVECO AA81002 ELTRAFO ELFA 43 674 54 ELFA43 673 97 ELFA 43 646 00
33. evel through a filter based on L1 L2 C5 C6 and C7 The 3dB frequency is set to 10 MHz The filter can be found on diagram 1 of 3 RMS DC Converter See QA ES Processor Board Schematic Diagram 1 The RMS DC converter is based upon an analog multiplicator from analog devices AD834 U15 U15 and U25 form a circuit that calcu lates the mean square of the applied signal A filter consisting of C8 C9 C50 C51 R35 and R36 determines the constant time factor for the integration which will correspond to the am plitude of the outgoing signal at U25 Further calculations of RMS values and current are carried out in the software on the Processor Board Two amplification steps following the mean square circuit en sure optimum dynamics in the measuring system Both steps U13 and U14 provide 20 dB amplification By measuring the signal before U13 and after U13 and U14 you can determine which signal level makes the best use of the A D converter dy namics Peak Detector See OA ES Processor Board Schematic Diagram 3 The peak detector is divided into two sections one for detecting the posi tive peak voltage and the other for detecting the negative peak voltage The detector is based on a transistor diode connection The positive peak voltage is detected by transistors O1 and O4 to which are attached various components The same goes for the negative peak voltage with Q2 and Q5 The positive peak voltage is built up over the C27 capacit
34. istor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor TYPE VALUE 20 pin Berg 71991 410 16 pin 10 pin 26 pin 36 pol 2 pol 2 pol Schurter 0031 8201 OGN 600mA Slow Elfa 75 612 44 M2x10 M2 M3x12 M3 Elprint AR 069 AD844AN AD711JN AD820AN LMC662CN AD834JN LTC 1272 5CCN DG485DJ 74HC589AN 74HCOOAN CNW2611 LM317T LM317LZ LM2941T LM337LZ LM2991T 547BNPN 560BPNP LL4148 1N5335 39V PRLL5819 25 MHz 4R7 1 1 8W 10R 1 1 8W 24R9 1 1 8W 51R 196 1 8W 75R 196 1 8W 100R 0 25 1 8W 160R 196 1 8W 249R 1 1 8W 390R 1 1 8W 470R 196 1 8W 750R 1 1 8W 953R 1 1 8W 1KO 1 1 8W 1K2 1 1 8W 1K5 1 1 8W 1K8 196 1 8W 2K0 0 25 1 8W 2K2 1 1 8W 2K7 196 1 8W 3K3 1 1 8W pann GSANNRRRSZANNO PNPWORARPWNWHPARPANNFANPENHNNEFRRRRORPRNERENNEBEEB DIAGRAM REFERENCE DISP1 DISP1 TP1 TP7 J4J5 J4J5 SW1 SW7 1 SW1 SW7 F1 F1 Q4 U21 U25 U13 U14 U22 U23 U15 U1 U24 U2 U3 U4 U5 U12 U16 U17 U18 U19 U20 Q1 Q2 Q4 05 D1 D6 D8 D13 D14 D15 D7 Y1 R56 R57 R27 R34 R37 R58 R24 R61 R72 R25 R26 R22 R23 R35 R36 R28 R42 R44 R46 R47 R90 R6 R21 R64 R67 R5 R41 R55 R43 R45 R54 R82 R83 R75 R48 R65 R73 R81 R40 R52 R60 R71 R38 R50 R77 R89 R63 R68 R53 10 COMPONEN
35. leakage from the active and neutral electrodes The test load is 200 ohm and the ESU must be operating at maximum power The current leakage measured directly at the instrument s termi nals must not exceed 100 mA Active electrode test setup in compliance with IEC 601 2 2 sec 19 101b fig 104 and sec 19 102 Adopted by ANSI AAMI HF18 1993 F QA ES Active Earthing contact Neutral electrode test setup in compliance with IEC 601 2 2 sec 19 101b fig 104 and sec 19 102 Adopted by ANSI AAMI HF18 1993 F QA ES Earthing contact Neutral 4 3 REM Alarm This test ensures that the ESU will sound an alarm if the resistance between the two neutral electrodes exceeds your specified limit The program directs the OA ES to gradually increase the resistance At a certain value the ESU should sound an alarm Test setup for ESU REM alarm test Green ESU Neutral 1 Foot Switch The QA ES can simulate the foot switch in Singl Oper This page intentionally left blank 5 1 Required Test Equipment 5 2 Preparation The QA ES should be switched on for a minimum of 15 minutes before the test starts to ensure stable working temperatures 5 3 Function Testing Measurements should be performed only on main supply and not both 230V and 115V 5 Control and Calibration This chapter explains the QA ES maintenance procedures including testing and calibrati
36. ocessor board The display offers EL background light to make it easier for the user to read U11 is an oscillator generating an operating volt age of about 90 VAC for the EL component Interface Towards Sampling Unit 6 2 Sampling Unit See QA ES Processor Board Schematic Diagram 1 All data transferred between the Sampling Unit and the Processor Unit is in serial format to simplify the optical interface on the sampling board Communication is controlled by the synchronous serial interface on the processor unit The signals are transmitted via pin board base J1 6 Serial Port See QA ES Processor Board Schematic Diagram 2 The serial port is adapted to a 9 pin RS 232C format The port is set to 9600 baud 8 data bits 1 stop bit and no parity RS 232 driver U6 drives the data signals The handshake is software oriented The command responses are returned via the D sub terminal 7 Printer Output See QA ES Processor Board Schematic Diagram 2 The Pro cessor Board s printer output has a standard 25 pin D sub con tact for Centronix interface The output is built around 3 HC MOS circuits U3 U4 and U5 The circuits are connected to the data bus and I O ports of the processor unit U3 is a latch for the 8 parallel data lines U4 is the driver for the outgoing com mands while U5 acts as a buffer for incoming commands RP3 comprises pull up resistances for the input lines All signals to the printer output are filtered to reduce
37. on ESU 200W in 75 ohms with 500 kHz Signal generator 3 MHz harmonics better than 40 dBc with 500 kHz 0 dBm Digital multimeter Digital multimeter HP 34401 or equivalent RMS Peak Voltmeter RHODE amp SCHWARY URE 3 or equivalent Oscilloscope 10 MHz Electrosurgical probe for QA ES Computer PC with RS 232C interface Printer with parallel interface Short circuit SMB terminal female Test cables WARNING HIGH VOLTAGES ARE CAPABLE OF CAUSING DEATH USE EXTREME CAUTION WHEN PERFORMING TESTS AND CALI BRATION USE ONLY INSULATED TOOLS WHEN THE UNIT IS PLUGGED IN AND THE CASE HOUSING IS OFF Before performing testing and calibration you must dismantle the housing This is accomplished by removing the side plates fastened with Velcro straps Then remove the bottom plate by loosening the four screws Afterwards move the bottom plate of the isolation box by loosening the 16 screws holding it in place Adjust the voltage switch at the rear of the QA ES so that is corresponds to the main voltage 115 or 230V 1 Power Supply Connect the multimeter in series on one of the mains supply leads to measure the current consumption Turn 5 4 Calibration 2 It is important to cali brate the resistance of the measuring leads on the multimeter itself be fore starting the test 3 on the QA ES Don t activate any functions Measure the cur rent Required value 230210906 80mA 10
38. or whereas the negative peak voltage is built up over the C28 capacitor U23 drains small amounts of current from C27 and provides the AID con verter with correct polarization and low impedance for the posi tive peak detector U22 does the same for the negative peak de tector The peak detector ran be reset by short circuiting C27 and C28 via octol analog switch U24 See OA ES Processor Board Schematic Diagram 2 A D Converter 6 3 Load Board The measuring device uses a 12 bit A D converter from linear Ul This circuit measures both RMS values and positive and negative peak voltage Each of the signals is multiplexed into the A D converter via the U24 switch The sampling speed depends on the Processor Board s reading speed Schottky diode D7 protects the A D converter from in coming negative signals 7 Interface Towards Load Board and Processor Board The measuring device and load resistances in the QA ES are isolated from the processor unit and the housing by a galvanic shield This protects the user if a fault in the QA ES produces ground currents during the measurements This interface is based upon opto couplers and various mains transformers for the user interface and the measuring device in the QA ES Data is transferred digitally between the Sampling Unit and the Processor Board in serial form via J3 to simplify the optical in terface Opto couplers U5 U6 U7 and U8 are used in transmit ting signals from the processo
39. page intentionally left blank Bipolar Electrosurgery Bipolar Output Blend Crest Factor Diathermy also Surgical Diathermy Electrosurgery ESU Cut Cut Mode Pure Cut Isolated Output Monopolar Electrosurgery Monopolar Output Resistance Impedance Appendix A GLOSSARY OF TERMS USED Electrosurgery where current flows between two bipolar electrodes that are posi tioned around tissue to create a surgical effect Current passes from one elec trode through the desired tissue to the other electrode thus completing the cir cuit without entering any other part of the patient s body Neutral plates are not employed in the bipolar technique Both electrodes are generally of the same size An isolated electrosurgical output where current flows between two bipolar elec trodes that are positioned around tissue to create a surgical effect in that tissue usually desiccation A waveform that combines features of cut and coag waveforms current that cuts with varying degrees of hemostasis The amount of heat generated is relative to the mean power value The crest factor depends on the load resistance and is defined as the ratio of peak value to effective value A sine wave has a crest factor of 1 4 and provides the cleanest form of cutting A surgical technique used to cut or coagulate cellular tissue To avoid muscle contractions only high frequency currents and voltages of more than 100 kHz are used The electric cur
40. pe Output Isolation 2600 5200 ohms in steps of 100 ohms O dc 200 ohms 500 watt maximum The higher of the two peak measurements is used for calculation 1 4 16 V peak voltage V RMS The output triggers the measurement after a programmed delay time defined as the time period from the activation of the foot switch to the beginning of data processing The delay time is 200 ms 4000 ms O to 10 kV closed load only 10 Mea surement is taken between the active and dispersive electrodes with closed load only 5 V A uncalibrated 100 mA RF current mini mum input 10 kV isolation between measurement device and enclosure Temperature Reguirements 15 C to 35 C when operating 0 C to 50 C in storage Display Type Alphanumeric format Graphics mode Display control Data Input Output 2 Power Source LCD graphic display 8 lines 40 characters 240 x 64 point matrix 5 F keys enter cancel and an encoder Parallel printer port 1 Bi directional RS 232C 1 for Computer control From 115 VAC to 230 VAC 48 66 MHz Mechanical Specifications Housing Height Width Length Weight Standard Accessories Metal case 13 2cm 4 48 in 34 2cm 11 61 in 39 5cm 13 41 in 9 8kg 21 6 lbs QA ES Electrosurgical Analyzer P N 14010 Power Cord P N 14300 QA ES User and Service Manual P N 14025 Additional Accessories E Input Measuring Cable Black P N 11451
41. pids MI 49505 91000 Evry France N 7044 Trondheim Norway Phone 1 888 863 8766 Phone 33 1 6078 8899 Phone 47 7382 8500 Fax 1 616 454 3350 Fax 33 1 6078 6839 Fax 47 7391 7009 E mail support us metron biomed com E mail info metron fr E mail support metron no METKON ws
42. r system to the Sampling Unit The Opto coupler U9 transfers the measurement from the Sam pling Unit back to the processor system on the Processor Board The relays used in choosing load values on the Load Board are also controlled via terminal J3 on the Sampling Unit The com mands are then transmitted from the Sampling Unit to the Load Board via terminal J2 8 High Voltage Protection Diodes D8 D15 are a protection device against high voltage sig nals entering the Sampling Unit Refer to QA ES Load Board Component and Schematic Diagrams The Load Board is located inside the internal protection box in the QA ES The card is fixed vertically inside the box The unit in cludes a power supply load resistances with corresponding control relays and interface towards the processor system Sampling Unit a measurement resistor with attenuators and measuring Transformer for the scope output The Load Board forms the load for the ESU being tested The load can vary from 10 ohms to 5200 ohms or be fixed to 200 ohms A high voltage relay inside the Load Board K1 connects the load to or from the ESU 1 Power Supply The Load Board is supplied with 2 x 9 VAC from the Trafo in the front part of the protection box via J14 The voltage is con verted with diode D9 and filtered through Cl and C2 Ul isa voltage regulator providing the relay drivers 5 V Ul also supplies Sampling Unit opto couplers U10 U11 and U12 with 5 V Cl and C2 p
43. re used to select the functions shown on the bottom line of the LCD display i e for selecting the function that is directly above the key 7 RF Detect Indicates when the ESU is activated 8 Remote Indicates that REMOTE CONTR F4 has been pressed 9 Scope Output BNC cable connector for attenuator signal in real Connector time When oscilloscope output is desired Right Side Panel O O e e O 10 Terminal RED and BLACK 11 Terminal BLUE and BLUE 12 Terminal GREEN and GREEN Rear Panel Line Voltage Selector 7 Line 48 66 Hz 115 230 V 13 RS 232 Serial Port 14 Printer Outlet Port 15 Main Connector 16 17 Voltage Selector Fuses Connection for the electrode outputs of the VAR LOAD ESU Active electrode to the red terminal and neutral electrode to the black terminal Additional fixed load resistance of 200 ohms FIXED LOAD 500 watt for serial connection dur ing leakage test Foot switch output switch can be used to trigger the ESU Printer 9 pin D sub 14 25 pin D sub 3 pin SCHUCO plug 115 VAC 230 VAC T 200 mA 2230 VAC T 400 mA O 11 5 VAC 3 2 QA ES Menu and Function Keys The QA ES uses a display programmable function keys and a set ting regulator to provide flexibility and control over the operations The upper part of the screen displays messages status and results The menu bar is at the bottom of the display The function key
44. rent directs the heat into the tissue The patient is con nected to two electrodes allowing the current to flow through the body The ac tive electrode will generate a large amount of heat due to the high current densi ty and the small surface of the electrode Electrosurgical Unit This is a term which is inclusive of both the electrosurgical generator and its connecting cables A low voltage continuous waveform optimized for electrosurgical cutting The output of an electrosurgical generator that is not referenced to earth ground A type of electrosurgery involving a small active electrode and a large neutral neutral plate electrode The small surface of the active electrode provides very good results in coagulating and cutting The neutral plate of modern units is split thus controlling the circuit including the contact between electrodes and patient A grounded or isolated output on an electrosurgical generator that directs current through the patient to a patient return electrode Resistance to the flow of alternating current including simple direct current re sistance and the resistance produced by capacitance or inductance The resis tance of a material is its tendency measured in ohms to oppose the flow of electric current or viewed another way the material s tendency not to conduct the current Return Electrode Monitor This page intentionally left blank Appendix B DDAGRAMS Processor Board Component Loc
45. rocessor Board 6 Component Functions and Parts This chapter provides a detailed description of the functions of the main components of the QA ES as well as a parts list for cross ref erence Reference is made to the component location and schematic diagrams to assist servicing personnel These diagrams are foldouts and are located in Appendix B Refer to QA ES Processor Board Component Location Diagram and Schematic Diagrams 1 and 2 The Processor Board is installed on the inside of the front plate It comprises the power supply microprocessor system display function keys interface towards Sampling Unit and RS 232 port and printer port The Processor Board activates and controls the sampling procedure in the QA ES The data is routed back from the Sampling Unit to the microprocessor where the results will be calculated before being displayed 1 Power Supply See QA ES Processor Board Schematic Diagram 2 The Pro cessor Board receives 12 VAC from the Transformer located at the rear of the QA ES via J4 The voltage is then converted with diode D9 and filtered through C1 Voltage regulator U8 sup plies the circuits with 5 V The voltage is adjusted with resis tors RIO and R11 Schottky diode D4 protects the 5V power supply to the printer interface to avoid any power flow between the printer and the Processor Board while the QA ES is switched off Capacitive switch regulator U9 generates 12 V from 12
46. rovide relay drivers U2 and U3 with 10 VDC and 10 VDC These voltages are used for controlling the relays on the Load Board Load Resistances There are two load resistances on the Load Board seen from the ESU being tested The first has a fixed load of 200 ohms and is used to measure the current leakage The other is a vari able load resistance which varies in steps of 25 ohms from 10 ohms to 5200 ohms Fixed Load Resistance The fixed load resistance is based on the two 100 ohms non in ductive resistances R17 and R18 connected in series The total load can be 350 W continuously Variable Load Resistance The variable load resistance is also based on a non inductive re sistance R3 R16 In addition relays K2 K10 have been used to offer the choice between different combinations of re sistances You can therefore obtain any value between 10 and 5200 ohms Measuring Resistance and Attenuator The measuring signal transmitted to the Sampling Unit is drained over a 2 0 ohms resistance R1 in series with the vari able load resistance R3 R16 Before the signal is transmitted to the measuring device it passes through a variable attenuator based on a 10 dB attenuator R20 R22 and a 20 dB attenuator R26 R30 By connecting these attenuators in series you can obtain an attenuation of 30 dB 6 4 Component Parts COMPONENT PART Interface Towards Sampling Unit When the signals pass through an optical barri
47. s are numbered from FI to F5 A function is selected by pressing the key located directly under the Menu Item displayed in the menu bar 3 3 LCD Display Menul Messages Overview START UP SCREEN IS DISPLAYED FOR 2 SECONDS METRON QA ES ELECTROSURGICAL ANALYZER Revision x xx y MAIN MENU PAGE 1 MAIN MENU PAGE 2 STATUS RESULT Mode Cont Oper Current Load 200 Ohm Power E Delay 50ms Voltage pp Oper Ready Crestfact STATUS RESULT Mode Cont Oper Current Load 2000hm Power Delay 50ms Voltage pp Oper Ready Crest fact SHOW KNOB PRINT REMOTE CHOICES PARAM START SETUP more 2 HEADER CONTR more 1 F1 F2 F3 F4 F5 F3 F4 F5 y y y yt Start Main menu Printing header LOCAL testing page 2 Main menu y page 1 Stop Pwr distr Start Load xxx ohms testing Pwr dist End Load xxxx ohms Pwr distr Step Size xxx ohms Choose between KNOB aui Mode Load PARAM MENU Delay F4 F5 Set the values y y with the Set the values Choose Return to the adjustment wheel with the line main menu adjustment wheel move star Cont Oper Singl Oper Power Dist RF leakage REM test UP DOWN CANCEL ENTER F2 F3 F4 F5 Quit and return to the main menu Retum to the main menu Move arrow down or use adjustment wheel Move arrow up or use adjustment wheel 3 4 Men
48. sed attach an RS 232 null mo dem data transfer configured cable to the 9 pin D sub outlet port located at the rear of the QA ES Do not attach the printer cable to the QA ES See below However if you are not using PRO Soft QA ES and are sending directly to a printer for print outs attach the printer cable to the 25 pin outlet port Active Neutral The QA ES can simulate the foot switch in Singl Oper PRO Soft QA ES is a front end test automation and presentation tool for METRON s ESU Performance Analyzer It allows you to conduct the same tests but by remote control via an IBM compati ble PC XT with MS Windows Version 3 1 or later Additionally the program has features to enhance your OA ES s performance Each of the OA ES tests can be run independently from PRO Soft in the Manual test mode Results are shown on the PC screen during testing and the user is prompted to set the tested eguipment accord ingly At the conclusion of tests the user may print a report store the test and results on disk or both Combinations of tests can be created and stored as Test Seguences The program maintains a li brary of these seguences In this way you can store and retrieve se NOTE PRO Soft QA ES has its own user manual which contains all the information concerning the program If you order a demonstration version of the program you also receive the manual quences that are appropriate for e
49. to the main menu PRINT HEADER F3 Writes a heading for a new test proto col REMOTE CONTR F4 Enables you to control the QA ES through a PC Required software PRO Soft QA ES 3 5 Printout Press PRINT HEADER F3 before printing out a page if you want it to have a new heading The QA ES automatically prints out the test results via the printer output after every measurement See ex ample below METRON OA ES Electrosurgical Analyzer Ver x xx QA ES Serial no Establishment Appliance code Serial no Status Group Manufacturer Model Type Location Unit passed test Comments Date HE nn Signature SN 978 ane P AA Test Mode Delay Load Current Power Vp p CF 1 Power distr 300 ms 10 ohms 1489 mA 25 W 49V 1 6 2 Power distr 300 ms 25 ohms 1373 mA 49W 121V 1 8 3 Power distr 300 ms 50 ohms 1241 mA 76W 174V 1 5 4 Power distr 300 ms 75 ohms 1143 mA 99 W 250 V 1 5 5 Power distr 300 ms 100 ohms 1025 mA 107 W 326 V 1 6 6 Power distr 300 ms 125 ohms 361 mA 119 W 347 V 1 5 7 Power distr 300 ms 150 ohms 905 ma 124 W 432 V 1 7 8 Power distr 300 ms 175 ohms 825 mA 129W 424 V 1 5 9 Power distr 300 ms 200 ohms 777 mA 123 W 446 V 1 5 10 Power distr 300 ms 225 ohms 735 ma 125 W 472 V 1 5 11 Power distr 300 ms 250 ohms 694 mA 122 W 476 V 1 4 12 Power distr 300 ms 275 ohms 655 ma 120 W 491V 1 4 13 Power distr 300 ms 300 ohms 610 mA 114 W 573 V 1 6 14 Power distr 300 ms 325 ohms 586 m 114 W 542 V 1 5
50. ul LCD Display Messages Detail 1 Startup Screen The following screen will be displayed for 2 seconds after the QA ES has been switched on METRON QA ES ELECTROSURGICAL ANALYZER Revision x xx Main Menu a First Menu Bar Page 1 STATUS Cont Oper Current 200 Ohms Power 200 Ohms Voltage pp Ready Crest fact SHOW KNOB CHOICES PARAM START SETUP more 2 F1 F2 F3 F4 F5 b Second Menu Bar Page 2 PRINT REMOTE HEADER CONTR more 1 F1 F2 F3 F4 F5 SHOW CHOICES F1 This function is activated when you see an asterisk in the status field under Mode Choose a test function by pressing UP F2 or DOWN F3 The en coder can also be used for choosing a test function Press ENTER F5 to save it under Mode in the STATUS field Press CANCEL F4 to undo Cont Oper Singl Oper Power Dist RF leakage REM test UP DOWN CANCEL ENTER F2 F3 F4 F5 KNOB PARAM F2 With this function you can choose be tween Mode Load and Delay in the STATUS field marks the active item If you choose Load use the encoder to set the load from 10 ohms to 5200 ohms in steps of 25 ohms from 50 ohms to 2500 ohms 100 ohms from 2500 ohms to 5200 ohms Save the selected load in Mode under the STATUS field by pressing ENTER F5 Press CANCEL F4 to undo If you choose Delay use the setting regulator to set the
51. verage value for the difference between the value read on QA ES and the applied value measured with URE 3 kdB Clin 10 20 Clin Linear value of kdB O Q eClin gain gain The following term will lead to a new value for Q gain Turn the wheel and press ENTER to specify a new value for Q gain Repeat the test until the average value between the OA ES and URE 3 is smaller than 0 1 dB This corresponds to an error of 2 390 Peak Detector Once the measuring device used in measuring the effect has been calibrated you can calibrate the peak detec tor Use the same test setup as for calibrating the effect Mea sure with a signal level of 200 mVp and 1 VP applied from the generator The applied amplitude is measured with URE 3 The difference between the value read on the OA ES and URE 3 should not exceed 1096 otherwise the P_offset and N_ offset in the calibration menu must be changed until this reguirement is met If the positive peak value read is too small P_offset should be reduced N_offset should be reduced if the negative peak value is too low Press QUIT F5 to save calibrated values Measuring Accuracy of the total system Connect the coaxial cable from the Load Board to the RF input J4 on the Sampling Unit Put the ground plate of the isolating box back into place Connect a high voltage probe in the port for variable load resis tance on the OA ES The probe s coaxial cable should be con nected to URE 3 The banana adapters of
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