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- Frank`s Hospital Workshop

1. 7 ZDZZIET Dark BNO C1313 7 2UZ 16T 2 7 047K RI206 7 047K 7 5 7 1 z 2M5864HZ 4P7FCH 1141 176 26 50 1050 Uz 18T 1501 18FFI Ci345 2 Z zUz 18T C1343 BUNFCIZ 344 7 1 1348 2U2 18T GND 2 TH ak TH ak TH ake RI 387 7 RI3 T 7 7 RI 303 7 R310 7 DESCRIPTION Series and Keypad Interface REALE REACII RE ACIZ READS REACH unum w 2 2 EGE METRON DRAW CAT Schematic diagram Part 6 DRAW NO E160 20 1300 U1 QA S DA TE 0 15 08 1994 B 21 This page intentionally left blank B 22 APPENDIX C ERROR REPORT FORM QA 90 A 90 ELECTRICAL SAFETY ANALYZER ERROR REPORT FORM 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 m
2. 4 7 4 6 Voltage Measurement Test Dual Lead sees 4 9 4 7 Resistance Measurement Dual Lead sees eene 4 11 4 8 Connecting Auxiliary Power Source Isolating Transformer esee 4 12 5 CONTROL AND CALIBRATION 22 2 0000 2000000 00000000000000000000000000000000000000000000000000000000 5 1 5 1 Required Test Equipment emer eme tee rur e ORE NE Cote E in 5 1 5 2 Preparation and Adjustments 5 1 5 3 Calibration eese E AO A 5 5 5 4 Other Calibration 5 11 5 5 Calibration Constants icc iion eec core ehe E ee ave er dece 5 14 iii 6 COMPONENT FUNCTIONS AND PARTS eese esee eene testet 6 1 6 1 Theory of Operation tee ie E irem o ie ir te be dawid 6 1 6 2 Measuring System nete eee UH RT Ere AW WAY Ee gene 6 2 6 3 Microprocessor System c erii re e ERE eripe beoe egt hie deett he repere eee 6 3 6 4 Component Parts oe Reate dicet iius gita ten uisi A EA 6 4 APPENDIX A IEC 601 1 UL 2601 1 AND VDE 0751 TESTING eere A 1 A 1 Classification of Equipment sitet et heri rre teer O Tit AE A 1 A 2 Tests on Mains Powered Class 1 4 2 Equipment According To IEC 601 1 UL 2601 1 A 4 A 3 Tests on Internally Powered Equipment Accordi
3. Symbols Used In This Manual Caution Refer to accompanying documents See NOTE Caution Risk of Electrical Shock see NOTE Earth ground TERMINAL vi 1 1 QA 90 Features 1 2 Specifications 1 Introduction This chapter describes the QA 90 Electrical Safety Tester s features and specifications The QA 90 represents a new generation of safety testing equipment It is the only automatic safety analyzer that can test units with different classes of protection in one test run e g cardiac float and body float defibrillators It is simple to use All you need do is select the type and class of equipment to test When you press START QA 90 ex ecutes the tests prescribed to the selected standard Test results may be printed out immediately or stored internally in the unit for later use QA 90 has full remote control and may be operated from PRO Soft QA 90 software PRO Soft QA 90 enables you to make your own test protocols store the information on disk and ex port formatted data to any other database or equipment management program Individual test sequences may be compiled to satisfy na tional and international standards The following standards may be compiled either fully or in part IEC 60601 1 UL 2601 1 IEC 60601 1 1 UL 2601 1 1 IEC 60601 2 4 IEC 61010 1 EN 60601 1 VDE 0750 TI 12 91 BS 5724 CAN CSA C22 2 No 601 1 M90 AS 3200 1 NZS 6150 1990 VDE 0751 T1 12 90
4. No of leads Fi F2 F3 F4 5 Select which Module Code to be measured with NEXT F4 or Prev F3 Press GO BACK F2 Press START F1 to start the test Press STOP F1 to stop the test 55 496 242 UON select a new module press PL repeat the same procedure 3 7 Storing Setup Parame ters in Flash Memory The following parameters can be stored in Flash memory e Operator e Establishment e Serial Number e Language e Calibration parameters To store the setup parameters in Flash memory go to SETUP F3 in MAIN MENU Equipment Code a Sequence Name PE 6 T Class GLI 0 leads in 0 modules MOP MEMOB D INCUN A A F1 F2 F3 F4 Press STORE F2 in SYSTEM SETUP and the display will show you the setup parameters stored in flash SYSTEM SETUP Operator dus 6 Establishment 3 8 Upgrading the QA 90 Software Program For installing software version 2 00 or higher use the following pro A cedure 1 Preparation IMPORTANT e Turn on the unit When upgrading the software on calibrated units you should note e Press SETUP F3 from the Main menu the calibration constants in the unit There are seven constants that can be read on the unit dis Equipment Code mm play Sequence Name 2107 Class GLI 0 leads in 0 modules AL 3 e Press CAL from the System Setup SYSTEM SETUP Operator Establishmen
5. B 15 Microprocessor System Schematic Diagram Part 1 QA 90 sss B 16 Microprocessor System Schematic Diagram Part 2 Integrated B 17 Microprocessor System Schematic Diagram Part 3 B 18 Microprocessor System Schematic Diagram Part 4 B 19 Microprocessor System Schematic Diagram Part 5 Printer and Display Interface B 20 Microprocessor System Schematic Diagram Part 6 Series and Keypad Interface B 21 APPENDIX C ERROR REPORT FORM 90 420 0 41 9090 0 31 1 11666806 6 6 8 8 808000 1 APPENDIX D SUGGESTION FORM 90 00012 eese D 1 Manual Revision Record This record page is for recording revisions to your QA 90 User and Service Manual that have been published by METRON or its authorized representatives We recommend that only the management 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 su perseded 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 o
6. 30 5629801 SSW 108 01 T D 2X8P CONNE 1 30 5670010 09185106324 10P HEADER 2 30 5670016 09185166324 16P HEADER 2 30 5670026 09185266324 26P HEADER 1 30 6600100 PCB 94382 1 CPU BOARD 1 30 6600105 PCB 94382 1 QA90 FRONT BOARD 1 30 7404004 10mH 187LY103J 262LY103J 12 15mH 1 30 8100000 SL350P 3 6V 3B960 LITHIUM 1 98 1140010 10R RESISTOR HOUSING 1206 5 98 1140133 330R RESISTOR HOUSING 1206 1 98 1140210 1K RESISTOR HOUSING 1206 2 98 1140227 2K7 RESISTOR HOUSING 1206 1 98 1140233 3K3 RESISTOR HOUSING 1206 1 98 1140247 4K7 RESISTOR HOUSING 1206 11 98 1140310 10K RESISTOR HOUSING 1206 15 98 1140312 12K RESISTOR HOUSING 1206 1 98 1140322 22K RESISTOR HOUSING 1206 3 98 1140327 27K RESISTOR HOUSING 1206 1 98 1140347 47K RESISTOR HOUSING 1206 8 98 1140368 68K RESISTOR HOUSING 1206 1 98 1140510 1M RESISTOR HOUSING 1206 98 1140610 10M RESISTOR HOUSING 1206 1 982500522 2 2 20V TANT B HOUSING 8 98 2500568 6 8 uF 6V TANTAL HOUSING B 1 982713347 4 7pF CAPACITOR HOUSING 1206 1 9842714010 10pF CAPACITOR HOUSING 1206 1 982714022 22pF CAPACITOR HOUSING 1206 2 982714222 2 2nF CAPACITOR HOUSING 1206 X7R 1 982714310 10nF 63V HOUSING 1206 10 1 9842714321 22nF 63V HOUSING 1206 10 1 9842714410 100nF CAPAC HOUSING 1206 10 X7R 21 9843010016 BAS16 DIODE SOT23 31 98 3500847 BC847B TRANSISTOR 3 98 3610846 BC846B TRANSISTOR 1 9843610857 BC857B TRANSISTOR 2 6 5 6 6 COMPONENT PART DESCRIPTION MEASURING BOARD 30 3000033 VC1210 26H 560
7. SN OR S 19 Equipment Code Sequence Name Class GLI Test according to Test Type Test Mode MANUAL TEST SETUP Mains Voltage Current Consumption 4 10 Current Measurement Dual Lead Voltage Measurement Dual Lead Resistance Measurement Dual Lead 4 7 Resistance Measure ment Dual Lead Measuring protective earth on fixed installations QA 90 I lt ENCL 2 0000 060600020 1 Press MORE F1 in MAIN MENU 2 Press Test Mode F5 and select Manual 3 Press START F4 4 Press MORE F1 in MANUAL TEST SETUP 5 Press MORE F1 three more times 6 Press Resistance Measurement Dual Lead F5 7 Press START F1 Equipment Code Sequence Name Class GLI 0 leads in 0 modules BA VAS A F2 F3 F4 Test according to IEC60601 1 Test Type Test Mode Automatic A MANUAL TEST SETUP Mains Voltage Gurrent Gonsumption A FI F2 F3 F4 Current Measurement Dual Lead Voltage Measurement Dual Lead Resistance Measurement Dual Lead A Open Supply Result Measure between E and E inputs 4 8 Connecting Auxiliary Power Source Isolat ing Transformer External power cable gives power out on the contact on the front pan A el to the instrument under test 4 12 NOTE The QA 90 power cable must also be connected For connections of Variac or Isolating transformers If the equipment under test is to be tested for voltages and or
8. and having an F type isolated floating applied part cardiac protection A 2 Generic Safety Tests Power Supply Tests Classes 1 and 2 Enclosure Tests Applied Parts Tests Types B BF and CF Systems Tests TO SYSTEM 10V 10 uA ENCLOSURE A 2 Tests on Mains Powered Class 1 amp 2 Equipment According To IEC 601 1 UL 2601 1 1 Test P E 1 Protective Earth Continuity Applicable to Class 1 Types B BF and CF e Measures impedance of Protective Earth Terminal to all exposed parts of the instrument under test which are connected to the Protective Earth e Normally includes the wiring in the mains cable maximum 0 2 Ohms Without the mains ca ble the maximum is 0 1 Ohms e Test current 25 Amps applied for a minimum of five seconds If equipotential connection present measure also with yellow green E P conductor connected INSTRUMENT UNDER TEST 3 Applied Part gt INSULATING PAD 2 Test I R 1 Insulation Resistance Mains Part to Case e Applicable to Class 1 Types B BF and CF 50 Hz e Measures insulation resistance of power leads live and neutral wires together to the Protec tive Earth terminal of the instrument under test e Minimum 2 0 MOhms INSTRUMENT UNDER TEST Applied Part 3 Test LR 2 Insulation Resistance Applied Part to Case e Applicable to Class 1 Types BF and CF A 4 e Measures insulation
9. ap m m m m M m m O W PD gt COMPONENT PART DESCRIPTION QTY 30 5600000 ABIKO SPADE 12610 1 30 5630016 09185166914 16P M K UTK 4 30 5800000 GST BGS 180GR FLATS 6 3M 1 HEADER 2 POL 17 30 5900244 MP24D4 TRIAC RELE 2 30 5902101 V23042 A1003 B 101 A2003 1 30 5902201 V23026 A1002 B201 12V REL 4 30 5902401 V23056 A0102 A401 12V REL 48 30 6600110 PCB QA90 E160 31 2000 U1 11 30 7403099 BV3099 2X7V2 0 5VA TRANSFORMER 1 30 7404200 BV4220 6V 3VA TRANSFORMER 2 30 7446540 ZKB465 401 25A 19MA TRANSFORMER 1 30 8100633 KK 633 SW KJ LER 1 30 8310200 2A TREG 5X20MM FUSE 4 F2002 F2003 30 8310601 031 3601 FUSE HOLDER 2 30 8315138 031 3577 FAU E360149 SI H 2 30 8315139 031 1661 E360138 2 30 8320016 16A 6 3X32MM SLOW FUSE 2 F2000 F2001 30 8431215 ZW31215 PDA03C60 DC DC 1 98 1140047 47R RESISTOR HOUSING 1206 1 100R RESISTOR HOUSING 1206 1 98 1140118 180R RESISTOR HOUSING 1206 4 98 1140133 330R RESISTOR HOUSING 1206 2 390R RESISTOR HOUSING 1206 1 99 1140127 270R 1 4W RESISTOR 2 99 1140147 470R 1 4W RESISTOR 1 99 1140151 510R 1 4W RESISTOR 1 99 1140210 1K 1 4W RESISTOR 1 99 1140222 2K2 1 4W RESISTOR 1 99 1140251 5K1 1 4W RESISTOR 1 99 1140310 10K 1 4W RESISTOR 2 99 1140351 51K 1 4W RESISTOR 3 99 1140510 1M 1 4W RESISTOR 2 99 3104003 1N4003 DIODE 1N4002 4 99 3104007 1N4007 DIODE 2 6 7 This page intentionally left blank APPENDIX A IEC 601 1 UL 2601 1 AND VDE 0751 TESTING This appendix describes Internati
10. 601 1 IEC 601 2 4 IEC 1010 1 UL 2601 1 IEC61010 AS 3200 1 HEI 95 ANSI AAMI VDE 751 or VDE 751 DEF Standard e Press Test Type F6 to select either Rapid or Normal test type e Press Test Mode F5 to choose between Automatic and Manual test e Press GO BACK F2 to return to the previous display e Press START F4 to start the test 4 MEMORY F2 QA 90 s memory is divided into two parts tests and sequences If you have several equivalent instruments to test you can define one test sequence for all the instruments and store it as a sequence You use this sequence to test all the instruments and store each of the test results with the instrument s respective equipment code The functions in the MEMORY menus enable you to store re trieve transfer print and delete test results and sequences from the memory The four main memory displays are as follows lt SEN TO 3 5 3 6 Equipment Code 1 2 F7 Store test in memory gt F6 Display test results gt F5 MORE SEQ MEM TEST MAIN MENU F2 F3 F4 Equipment Code Recall and transfer test from memory gt Recall and print test from memory Transfer all tests from memory List test in memory to printer Print all tests in memory Equipment Code Delete test in memory Delete all tests in memory The F5 and F6 function keys generate new displays as confirma tion of an executed function or error messa
11. A AM GE 13 technique qualifie Mains QA 90 100 240VAC 3 2 10 11 12 13 14 15 Power Switch RS 232 Serial Port Bar Code Port Printer Outlet Port Mains QA 90 Auxiliary Power Fuse Turns power ON and OFF 9 pin D sub 9 pin D sub HP Smartwand Interface TTL 25 pin D sub Centronic output Mains connection for test instrument Auxiliary power connection for instrument under test Mains fuses 2 x 16 Amps 220V 16 Earthing Contact Extra earthing point 3 2 Key Pad Functions The alphanumeric keys comprise both numbers and letters Hold the key in and it moves automatically from character to character Patient Leads Backspace 3 3 Function of The Bar Code Reader The bar code reader may be used in the main menu and in the patient lead to record respectively the instrument code and class module code number of leads and type The program will select the correct screen display depending on the bar code format The program will give a beep if a wrong format is read INSTRUMENT CODE FORMAT FIELD DESC VALUE ACCEPTED MAX CHARACTERS Instrument code alphanumeric 20 Separator 1 must be included Instrument class CLI CL2 I P 3 must be included Example abcdefg CL2 Instrument code abcdefg Instrument class CL2 PATIENT LEAD FORMAT FIELD DESC VALUE ACCEPTED MAX CHARACTERS Module code alphanumeric 20 Separator 1 must be included No of leads nu
12. BACK F2 until you return to Manual Test Setup Window 3 Then press MORE F1 to advance to Manual Test Setup Window 4 Patient Auxiliary Current AC Patient Auxiliary Current DC Mains on Applied Part MORE FI GO BACK F2 F3 MAIN MENU F4 5 7 5 8 Patient Auxiliary Current DC a b Press Patient Auxiliary Current DC F6 Select Normal Condition F7 Press the PL key on the keypad to ensure that the module with Patient Leads 1 10 white leads is active If not press PREV F3 or NEXT F4 so that it is active Press GO BACK F2 to return to the test window then press START F1 Use a current source to generate an DC current 20 uA be tween Patient Leads 1 9 and Lead 10 and between Patient Leads 1 8 and Lead 9 Check that both the level of this cur rent and the current readout on the QA 90 display are equal Press STOP F1 Press GO BACK F2 then press MORE F1 to advance to Manual Test Setup Window 5 Current Measurement Dual Lead Voltage Measurement Dual Lead Resistance Measurement Dual Lead Current Measurement Dual Lead a b C g Press Current Measurement Dual Lead F5 Select Normal Condition F7 Press START F1 Use a current source to generate a current between the DUAL Red and Black inputs Press STOP F1 Check that both the level of this current and the current rea dout on the QA 90 display are equal Press GO BACK F2 to Manual
13. EXTREME CAUTION WHEN PERFORMING TESTS AND CA LIBRATION USE ONLY INSULATED TOOLS WHEN THE UNIT IS PLUGGED IN AND THE CASE HOUSING IS OFF 1 Enclosure Leakage Current a Select Enclosure Leakage Current F7 b Select Normal Condition F7 c Press START F1 and generate a current 10 pA 10 mA between ENCL and Chassis Then press STOP F1 d Check that both the level of this current and the readout on the QA 90 display are equal e Press GO BACK F2 twice to go to Manual Test Setup Window 2 2 Earth Leakage Current a Press Earth Leakage Current F5 b Select Normal Condition F7 c Press START F1 and generate a current 10 uA 10 mA between EARTH and Chassis Then press STOP F1 d Check that both the level of this current and the readout on the QA 90 display are equal e Press GO BACK F2 then MORE F1 to advance to Ma nual Test Setup Window 3 Enclosure Leakage Current Patient Leakage Current AC 3 Patient Leakage Current AC a Press Patient Leakage Current AC F6 b Select Normal Condition F7 c Press the PL key on the keypad to ensure that the module with Patient Leads 1 10 white leads is active If not press PREV F3 or NEXT F4 so that it is active d Press GO BACK F2 to return to the test window then press START F1 5 5 5 6 Use a current source to generate an AC current between Pa tient Leads 1 10 and EARTH Check that both the level of this curr
14. PI 1 5 5 DESCRIPTION Applied Part Matrix DRAW CAT METRON Schematic diagram Part 5 DRAW NO E160 20 2400 U3 DA TE QA 90 17 10 1995 B 10 Measuring System Schematic Diagram Part 6 Measurement Matrix Measuring System Schematic Diagram Part 7 Program Amplifier and Lowpass Measuring System Schematic Diagram Part 8 Relay Drivers Microprocessor Board Component Location Keypad Board Component Location DESCRIPTION Keypad Board DRAW CAT METRON Component Location DRAW NO PRODUCT DATE QA 90 17 10 1995 Microprocessor System Schematic Diagram Part 1 QA 90 Microprocessor System Schematic Diagram Part 2 Integrated Keypad Microprocessor System Schematic Diagram Part 3 CPU Microprocessor System Schematic Diagram Part 4 CPU Microprocessor System Schematic Diagram Part 5 Printer and Display Interface B 20 Microprocessor System Schematic Diagram Part 6 Series and Keypad Interface ADRBUS IQQNFO 1312 ZUZZI T MAX Z38EW
15. Test Lead Instrument under test q m Lead 606 ojo 4 3 Connecting an In strument with Patient Inputs ZA NOTE Ensure that the mains Switch on the instrument to be tested is switched ON Press Equipment Classification F6 and select classifica tion Press MORE F1 Press Test according to F7 and select test standard Press Test Type F6 and select either Rapid or Normal Press Test Mode F5 and select either Automatic or manual Press START F4 to start the test Dw Bop o Equipment Code Sequence Name 6 Glass GLI 0 leads in 0 modules A F4 A Test according to IEC60601 1 Test Type Test Mode Automatic A This includes IEC Classifications Body B Body Float BF and Cardiac Float CF Connect the mains plug of the instrument to be tested to the QA 90 s terminal on the front panel Then connect a calibrated test lead be tween the ENCL connector on the front panel of the QA 90 and the casing of the instrument to be tested Following that connect patient lead between the instrument to be tested and Patient leads on the QA 90 See below 4 3 Gh dE RY MA 13 14 15 Test Lead Instrument under test Patient Lead Press Equipment Classification F6 and select classifica tion Press MORE F1 Press Test according to F7 and select test standard Press Test Type F6 and sel
16. Test Setup Window 5 Voltage Measurement Dual Lead a b Press Voltage Measurement Dual Lead F7 Select Normal Condition F7 Press START F1 Use a power voltage source to generate an AC voltage Press STOP F1 Check that the level of this current and the current readout on the QA 90 s display are equal If necessary adjust the voltage to be equal on UUT and reference The constant used is the SP VDML U constant Repeat the measurement but with DC voltage Press GO BACK F2 four times to go to Manual Test Se tup Window 1 Supply Voltage An insulated transformer is used for this mea surement except for step 7 f below a b Press Supply Voltage F6 Check the voltage between LIVE and NEUTRAL on the front panel terminals with a calibrated instrument Select Live Neutral F7 and press START F1 Press STOP F1 Check the voltage Select Neutral Ground F7 and press START F1 Press STOP F1 Check the voltage Connect a variac to the terminals on the front panel and check the voltage The Live Neutral setting is used to measure for example 70 and 250 V AC It is not necessary to use an insulated transformer Press GO BACK F2 to return to Manual Test Setup Win dow 1 Current Consumption This measurement is done with a resis tive load connected to the mains outlet on the front panel of the QA 90 The reference digital multimeter HP34401 or similar in current AC mod
17. Type F6 and select Rapid d Press Test Mode F5 and select Manual e Press START F4 then press MORE F1 twice to advance to Manual Test Setup Window 3 Equipment Code Sequence Name Class GLI 0 leads in 0 modules gt F4 A 5 1 Test according to IEC60601 1 Test Type Test Mode Automatic A MANUAL TEST SETUP Mains Voltage Gurrent Gonsumption A A A 2 Patient Lead Definition To facilitate some calibration mea surements patient leads need to be defined To do so a Press the PL key on the keypad and the following window appears Module Code No of leads Type 5 2 NOTE The module numbers do not need to be entered as they are defaulted as 1 2 etc b For Patient Leads 1 10 white leads press No of leads F6 and key in 10 Press the Enter key c Press ADD F1 then NEXT F4 d For Patient Lead 11 blue lead press No of leads F6 and key in 1 Press the Enter key e Press ADD F1 then GO BACK F2 to return to Manual Test Setup Window 3 3 Display Contrast Adjustment a Remove the case housing b Setthe contrast in the display by adjusting the potentiometer located to the left of the CPU 4 Offset Adjustments Before conducting measurements offset ad justments must be made to the measuring devices Refer to sche matic diagram E160 20 2600 U3 Prog Amplifier Lowpass QA 90 a RMS DC Converter The RMS DC c
18. and reversed polarity using S2 Maximum leakage current 500 uA Range DC and AC up to 1 kHz MEDICAL ELECTRICAL SYSTEM Can be multiple different connections to different equipment at the same time INSTRUMENT UNDER TEST Signal part Signal part Applied Part A 15 A 5 Tests According To VDE 0751 1 10 1990 1 Test VDE 0751 1 Test 1 Replacement Leakage Current Fig 9 Ersatz Ableitstrom nach Bild 9 e Applicable to Classes 1 and 2 Types B BF and CF For Class 1 Protective Earth conductor is not connected e Measures replacement leakage current to earth from all Applied Parts and enclosure in paral lel normal and reversed polarity using S e Maximum leakage current 1000 uA Range DC and AC up to 1 kHz AC Power Connected INSTRUMENT UNDER TEST Applied Part INSULATING PAD 25 i MD Not present in Class 2 2 Test VDE 0751 1 Test 2 Replacement Equipment Leakage Current Ersatz Geriteableit strom e Applicable to Class 1 Types B BF and CF e Measures replacement leakage current to mains part from all Applied Parts and enclosure in parallel with Protective Earth wire connected e Maximum leakage current 1000 uA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST Applied Part PE tS INSULATING PAD 3 Test VDE 0751 1 Test 3 Replacement Patient Leakage Current Ersatz
19. between one of the Applied Parts and all of the others in parallel with one supply lead interrupted S1 open normal and reversed polarity using S2 e AP switch is used to obtain all AP combinations e Maximum auxiliary current Types B and BF 50 uA DC 500 uA Range AC 0 1 Hz up to 1 kHz For Type CF 50 uA Range DC and AC up to 1 kHz Not present in Class 2 INSTRUMENT UNDER TEST L N MD N L Applied Part PA1 15 Test P A C 3 Patient Auxiliary Current S F C Open Earth Ground e Applicable to Class 1 Types B BF and CF e Measures the current flowing between one of the Applied Parts and all of the others in parallel with the Protective Earth open circuit S4 open normal and reversed polarity using 52 e AP switch is used to obtain all AP combinations Maximum auxiliary current Types and BF 50 uA DC 500 uA Range AC 0 1 Hz up to 1 kHz For Type CF 50 uA Range DC and AC up to 1 KHz Not present in Class 2 INSTRUMENT UNDER TEST L N o P MD 51 O D N D Lo o Applied 54 9 4 INSULATING PAD Bu Bs BN PAS PA4 2 A 3 Tests on Internally Powered Equipment According To IEC 601 1 UL 2601 1 1 Test LP 1 Enclosure Leakage Current Normal Condition e Applicable to internally powered equipment Types B BF and e Measures leakage current of the exposed metal parts of the i
20. give 253 VAC to VDE measurements and to Mains on applied part measurements and to U2220C which gives 500 VDC to insulation resistance measure ments 2220D emits a rectangular signal with a DC offset The am plitude is adjusted by respectively R2224 for AC and R2228 for DC U2240 is a screening circuit with a center frequency set by D2240 de pending on the mains frequency The screen converts the DC signal to almost a sinus signal This then goes to an amplifier buffer referred to as the High Voltage Drives refer to Schematic Diagram E160 20 2300 U3 High Voltage Drives QA 90 which in turn feeds T2150 page 2 For measuring mains on applied part 253 VAC the signal goes from T2150 through the 52151 relay and 47 kOhm series resistor R2150 R2151 to the measuring object For measuring insulation resistance 500 VDO the signal passes through the S2151 relay to the rectifier 6 3 Microprocessor Sys tem module comprising D1 D2 and C2150 C2151 and out to the measur ing object via a 102 kOhm series resistance The series resistances protect the voltage generators the equipment under test and users against the high test voltages Schematic Diagrams E 160 20 2400 U3 Applied Part Matrix and E 160 20 2500 U3 Measurement Matrix comprise relays that are set up in accordance with the different measurements to be performed Diagram 5 includes relays that belong to measurements on the patient leads Diagram 6 includes relays f
21. to return to the previous display 11 Insulating Resistance Insulation resistance measurements are done in both the Mains to Case and Applied Part to Case mod es a Ensure the QA 90 is ON for at least 30 minutes b Press Insulating Resistance F6 c Select Mains To Case F7 d Connecta voltmeter or a digital multimeter with an input impedance of 10 MO between ENCL and the mains outlet on the front panel Press START F1 e Measure the test voltage f Trim the test voltage to within 500 1 V Then use a cali brated resistor to measure values in the range 1 200 MO NOTE Never set any of the con stants higher than 99 999 NOTE Remember that the patient leads must be defined 1 10 5 4 Other Calibration Pro cedures Using a reference resistor of 90 110 MQ calculate the IR U constant such that the QA 90 measures as closely as possi ble to that reference Using a reference resistor of 190 210 MQ calculate the IR R constant such that the QA 90 measures as closely as poss ible to that reference AA IMPORTANT N YOU HAVE TO PERFORM SEVERAL CALCULATIONS OF THESE CONSTANTS BECAUSE OF THEIR INFLUENCE ON EACH OTHER IF THEY ARE CLOSE TO DEFAULT FEW CAL CULATIONS ARE NECESSARY HOWEVER IF THE IR R CONSTANT HAS TO BE HIGH MEASUREMENTS MUST BE REPEATED TO OBTAIN THE BEST POSSIBLE LINEARITY If you are unable to justify levels above 210 MQ it may be necessary to change the measurement
22. unit comprises a processor system display control compo nents connection to the metering board an RS 232 port printer port and a port for the bar code pen The processor controls the measurement process in the QA 90 Meas ured analogue values are converted to an A D frequency that is 6 3 6 4 Component Parts 6 4 transferred to the processor where the measurements are calculated and presented in the display The CPU comprises a Motorola 68HC11A1 operating at 8 MHz which gives a BUS frequency of 2 MHz The UART in uP is used on ly during boot up The pulse accumulator in uP is used to record mea surement data A Maxim uP supervisory circuit with a 4 65 Volt reset is also used to monitor the 12 Volt power and to ensure battery power to the RAM when the unit is switched off U1080 and DS2404 are timer cir cuits These provide the system with real time U 1160 is an address decoder UI120 is an address latch for the multiplex address bus uP has a 64 KB address range UI130 together with U1150 is used as a bank switch to address the process circuits RAM and flash ROM Refer to Schematic Diagram 4 Memory QA 90 The memory com ponent comprises 128 KB RAM and 512KB flash ROM for storing programs The CPU module is programmable and may he repro grammed with new software supplied by Metron All transistors in the memory circuit are used to supply the flash ROM with a 12 volt pro gramming voltage Refer to Schematic Di
23. 2 Test P L C 4 Patient Leakage Current S F C Mains on Applied Part e Applicable to Classes 1 and 2 Types BF and CF e Measures leakage current to earth from Applied Part to earth caused by external mains voltage on Applied Part and with switch S5 open and closed e Each polarity combination possible is tested using S5 and S6 e Maximum leakage current Type BF 5000 uA Range DC and AC up to 1 KHz For Type CF 50 uA Range DC and AC up to 1 kHz 100 HA for CF defib paddles IEC 601 2 4 Not present in Class 2 INSTRUMENT UNDER TEST Applied Part Signal part in and or output INSULATING PAD 13 Test P A C 1 Patient Auxiliary Current Normal Condition e Applicable to Classes 1 and 2 Types B BF and CF A 9 Measures the current flowing between one of the Applied Parts and all of the others in paral lel e g patient leads normal and reversed polarity using S2 AP switch is used to obtain all AP combinations Maximum auxiliary current Types B and BF 10 uA DC 100 uA Range AC 0 1 Hz up to 1 kHz For Type CF 10 uA Range DC and AC up to 1 kHz Not present in Class 2 INSTRUMENT UNDER TEST o MD Applied Part PA1 CL INSULATING PAD MD MD d olg 0 4 14 Test P A C 2 Patient Auxiliary Current S F C Open Supply e Applicable to Classes 1 and 2 Types B BF and CF e Measures the current flowing
24. A 90 This chapter explains the operating controls switches and menus of the QA 90 details how to use them in testing and provides general information on printouts and operator maintenance 3 1 Control Switches and Connections Front Panel METReN QA 90 Safety Analyzer 1 KeyPad 11 alphanumeric keys used to enter information Patient Leads New window for recording patient inputs Clear Clears the whole display Return Deletes the last character Enter Records entered data 2 Function Keys F1 F4 are used to select the functions shown in the menu bar at the bottom of the display i e for selecting the function that is directly above the key F5 F7 are used to select the func tion or enter information in the message field in the same line 3 LCD Display Shows messages test results and function menus 3 1 4 Patient Leads For connecting patient inputs Caution Max 256 VAC Max 500 VDC can be present during specified tests 5 Dual E and E floating inputs outputs These function in the manner of standard multimeter leads 6 Encl Enclosure for connecting to the casing of the instrument un der test 7 Earth Extra earth connection for calibrating measuring leads 8 Contact For connecting the power plug of the instrument to be tested Rear Panel Auxiliary Power 100 240VAC e e to Equipment 47 63Hz under Test Fused T16A 250VAC on e Warning Power Attention Off
25. CF equipments measures with the AP GND switch 53 open and closed Maximum leakage current 100 uA Range DC and AC up to 1 kHz Not present in Class 2 INSTRUMENT UNDER TEST 9 N L Applied Part INSULATING PAD Test ENCL 2 Enclosure Leakage Current S F C Open Supply Applicable to Classes 1 and 2 Types B BF and CF Measures leakage current of the exposed metal parts of the instrument under test with one open supply lead interrupted S1 open normal and reversed polarity using S2 For Type BF and CF equipments measures with the AP GND switch S3 open and closed Maximum leakage current 500 uA Range DC and AC up to 1 KHz Not present in Class 2 INSTRUMENT UNDER TEST L N o q ND T Applied Part INSULATING PAD 8 Test ENCL 3 Enclosure Leakage Current S F C Open Earth Ground Applicable to Class 1 Types B BF and CF Measures leakage current of the exposed metal parts of the instrument under test with Protec tive Earth open circuit S4 open normal and reversed polarity using S2 For Type BF and CF equipments measures with the AP GND switch S3 open and closed Maximum leakage current 500 uA Range DC and AC up to I kHz INSTRUMENT UNDER TEST L N N o p N L Applied Part INSULATING PAD 9 Test P L C 1 Patient Leakage Current Normal Condition Applicable to Classes 1 and 2 Types B BF and CF Mea
26. Kiwi Pee EE Le A 1 3 2 INSTALLATION 2 1 2 1 Receipt Inspection and eee eee eee aaa aaa aaa netten nennen nne 2 1 2 2 Nn Ad W R BA dA A ZOB ad WA 2 2 2 3 POWeE i OE AO A EE ORE BAER AERA ET 2 2 2 4 OGON OWA nin NR 2 2 3 OPERATING QA290 eis 3 1 3 1 Control Switches and Connections 3 1 3 2 Key Pad Functions etos p nee otn e 3 3 3 3 Function of The Bar Code Reader nne nnn nnne enne n enne 3 3 3 4 Menu and Function Keys eite it Aa 3 4 3 5 Display Menus and Messages essere 3 4 3 6 Measurements with Several Modules in Manual 3 10 3 7 Storing Setup Parame ters in Flash Memory seen 3 11 3 8 Upgrading the QA 90 Software 3 13 3 9 Clea g the QA 90 eco setae ee eee ete ipee eee ius 3 15 4 EXAMPLE TEST MEASUREMENTS 200222000 0000000000000000000000000000000000000000000000000000000 4 1 4 1 Test bead Calibration z dedo RR GERE 4 1 4 2 Connecting an Instrument without Patient Inputs eese 4 2 4 3 Connecting an Instrument with Patient Inputs 0 44440400 0 4 3 4 4 Power Gable TI6St ie eee teretes ete det E E ned tet 4 6 4 5 Current Measurement Test Dual
27. Patientableit strom Applicable to Classes 1 and 2 Types BF and CF Measures replacement leakage current to mains part from all Applied Parts and enclosure in parallel Maximum leakage current Type BF 5000 uA For Type CF 50 uA 100 uA for CF defib paddles Not present in Class 2 INSTRUMENT UNDER TEST Applied Part INSULATING PAD This page intentionally left blank APPENDIX B DIAGRAMS Mains amp EUT Connections Schematic Diagram eese nennen B 2 Measuring Board Component Location Layer 1 esee enne B 3 Measuring Board Component Location Layer 2 nennen B 4 Measuring System Schematic Diagram Part 1 Measuring B 5 Measuring System Schematic Diagram Part 2 High Voltage Interface sess B 6 Measuring System Schematic Diagram Part 3 High Voltage Logic eese B 7 Measuring System Schematic Diagram Part 4 High Voltage Drives sees B 8 Measuring System Schematic Diagram Part 5 Applied Part B 9 Measuring System Schematic Diagram Part 6 Measurement Matrix sse B 10 Measuring System Schematic Diagram Part 7 Program Amplifier and Lowpass B 11 Measuring System Schematic Diagram Part 8 Relay Drivers sees B 12 Microprocessor Board Compo
28. QA 90 User amp Service Manual QA 90 Electrical Safety Analyzer METR N a P N 11025 V 3 18 Copyright 2001 by METRON All rights reserved METRON 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 Qmetron 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 purpose 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 jurisdic tions do not allow disclaimers of expressed or implied warranties in certain transactions therefore this statement may not apply to you Limited Warranty METRON warrants that the QA 90 Electrical Safety Analyzer will substantially conform to published specifi cations 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 defect
29. VDR MOTSTA 30 4274404 74HC4049T SMD 30 4400071 TLO71 SMD 30 4400353 LF353M SMD 30 4405517 NE5517D SMD 30 4405841 UCN5841LW SMD 30 4440280 MAX280CWE SMD 30 4474132 74HCT132 SMD OPA602AP SMD 30 1410320 20K 1W RESISTOR 30 1410327 27K 1W RESISTOR 30 1440510 1M VR37 RESISTOR 30 1840256 5K6 9W POWER RESISTOR 214 5 30 1840257 18141 FESTEBRAKETT 5K6 9W 30 1800350 Q63100 P2350 C880 PTC 30 1800390 B59850 C120 A7010R PTC 30 1860168 680R 4605X 101 5P SIL 30 1860222 2K2 4609X 101 SILRESISTOR 30 1860247 4K7 4605X SILRESISTOR 30 2042250 5K TRIMPOT 82P 10K TRIMPOT LIN 50K TRIMPOT LIN 302410647 47 uF 63V 5 08MM EL CAPACITOR 3042410721 220 uF 25V 5 08MM EL CAPACITOR 3042600510 PME271Y510 Y Capacitor 3042713415 15nF 50V MULTILAYER 5 08 3042800411 100nF 400V MKT1822 15MM 302800512 1 UF 630V MKT1813 510635 3042810233 3 3nF 400V B32520 B6332K 302810246 4 7nF 400V B32520 B8472K 3042810405 0 1 47R RC LEDD 3043410006 DFO6M 600V 1A LIKERETTER 3043500031 TIP31C EFF TRANS NPN 30 3500032 TIP32C EFF TRANS PNP 30 3801680 T1612MJ 600V ISOL TRIAC 3044400110 LCA110E MOS S KOBLER 30 4400172 CNY17 OPTOKOBLER 3044400231 LM231N IC 3044402630 HCPi 2630 OPTOKOBLER 3044420825 GAL20V8A 25QP EL LP 30 4430203 PGA202BG 30 4430537 AD536AKQ 3045514035 5238 3 3 POL MOLEX 3045514060 5238 6 6 POL MOLEX 3045514315 14P IC SOCCET M DR BEIN 3045514324 24P IC SOCCET SMAL 3045515816 5281 6 6PIN QTY uu PUT m m m m NM m PP m m m MP m m p
30. VE 0751 UL 544 HEI 95 HEI 158 among others 1 Voltage Measurement Measurements may be obtained in the following ways Between leads 1 and 2 in the power contact Between lead 1 and ground in the power contact Between lead 2 and ground in the power contact Between input output E and E floating inputs outputs Range 0 400V true RMS Resolution 0 1V Accuracy DC 100 Hz 1 of full scale 1 LSD 100 Hz 10 kHz 2 of scale 1 LSD No of Tests 4 or multiple LSD least significant digit 2 Current Consumpiion 1 1 The current measurement may be executed in lead no 1 live Range 1 0 1000 mA RMS 250VAC Resolution 1mA Accuracy 2 of full scale 1 LSD No of Tests 1 or multiple Range 2 1 16A RMS 250VAC Resolution 1mA Accuracy 1 of full scale 1 LSD No of Tests 1 or multiple Protective Earth The test current is selectable from 25A or 1A delivered from a transformer with a maximum idle voltage of 6V The measurement can be performed on ground leads or between E and E floating inputs outputs Range 0 2000 mOhm Resolution 1 mOhm Accuracy 2 of full scale 1 LSD No of Tests 1 2 or multiple Insulating Resistance The measurement of the insulating resistance may be executed between casing and power unit or between patient module and power unit Test voltage 500VDC through a 130 kOhm limiting resistor No of Tests 1 2 or multiple Range 1 50 mOhm Resolutio
31. agram 5 Printer and Display IF QA 90 The printer and display interface comprises PD71055 PIO that is used to write to display and to the Centronics output Data to Centronics goes via LS05 which has an open collector output A strobe pulse to the Centronics port is established through U1410A D Keypad scanning and the RS 232 interface are established by UI300 DUART The keypad is a standard keypad matrix U13 I0 MAX238 is a RS 232 transmitter receiver between DUART and the RS 232 port COMPONENT PART DESCRIPTION QTY CPU AND FRONT BOARD 30 4107405 74LS05 SO IC 2 30 4407432 74HC32T SMD 2 30 4412400 DS2404S SMD 1 30 4428400 PA28F400BX T60ES 1 30 4440239 MAX238CWG SMD 1 30 4443100 PD431000AGW 70LL 1 30 4471055 UPD71055GB SMD 1 30 4474573 74HCT573T SMD 1 30 4474574 74HCT574T SMD 1 30 4474726 74HC7266 SMD IC 1 30 1860210 1K 4609X101 SILMOTST 1 30 2030205 1K 82R POTMETER 1 COMPONENT PART DESCRIPTION QTY 30 4400547 M40247DY J DISPLAY 1 30 4400690 MA 120690CPA 1 30 4402612 PALCE26V12H 20PC 1 30 4402692 SC26C92AC1 N40 1 30 4406811 MC68HC11AIP 1 30 4436864 3 6864MHZ HC18 CRYSTAL 30pF P 1 30 4480000 8MHZ HC18U CRYSTAL 30pF P 1 30 4490327 32 768KhZ YC 38 CRYSTAL 6pF 1 30 5514065 41671 26 48 1065 MOLEX 1 30 5514327 28P IC SOCCET SMALL 1 30 5515025 5268 22 05 7025 1 30 5600000 ABIKO SPADE 12610 1 30 5600017 2X8 PIN STIFTLIST 1 30 5600020 KBS 20DB 4P 1 30 5601201 JPM1020 0201 SWITCH 23 30 5605222 SS2 22 SBSK04P 2
32. amplifier Check the range of 1 200 MQ e g 1 10 100 and 200 MQ with Metron s test instrument Press STOP F1 Press GO BACK F2 to return to Main Setup Window 2 and press Mains on Applied Parts F6 Select F7 to display Applied Part to Case Define the Patient Leads 1 10 Measure the voltage between EARTH and applied part Adjust the voltage to 253 V 4c for European Models or 132 Vac for US Models Patient Leads 1 10 Check that the current displayed on the UUT is in accor dance with Ohm s Law 253 or 132 Vac test box imped ance The measured alternating voltage divided by the voltmeter s internal resistance Press GO BACK F2 to return to the previous display Bar Code Reader Optional This checks the QA 90 Bar Code Reader function and its ability to properly accept scan and con 2 On older QA 90 firmware versions there is only one constant IR U constant for insulation resistance measurements On version series 0 xx there are six constants while on version series 1 xx there are seven Also with the 1 xx series the IR U and IR R constants are used for insulation resistance mea surements 5 11 vert the bar codes into machine readable format See paragraph 3 3 for more information on this feature a Attach the scanning wand s TTL interface to the 9 pin D sub port on the QA 90 s rear panel b Return to the Main Menu Equipment Code Sequence Name us 6 lt Class GLI 0 leads
33. ated on the front panel The mains contact is located on the rear panel adja cent to the mains switch marked Power QA 90 Refer to drawing no E160 20 2000 U1 The measuring board covers the entire base of the cabinet housing Test currents are generated from the rear left edge of the metering board The forward section to the left is the measurement amplifica tion unit with power to frequency conversion against the processor component Approximately two thirds of the right hand side of the board comprises relay sequence drives and related relays for setting up the various measurement modes and measurement inputs All communications with the CPU board occur via optical isolators which isolate the measurement and CPU components from one anoth er Refer to Schematic Diagram 160 20 2000 U1 High Voltage Inter face QA 90 Measuring Preparation QA 90 The metering system is divided into six function blocks The diagram contains the function blocks as well as the sequence functions for power and auxiliary ter minals on the rear panel of the QA 90 The T2070 Measurement Transformer is used for current consumption measurements Refer to Schematic Diagram E160 20 2100 U3 High Voltage Inter face QA 90 The high voltage mains interface component has sev eral functions T2110 gives the power frequency and synchronization signal to the High Voltage Logic U2210 U2210 generates a 50 60 Hz rectangular signal respectively to U2220A to
34. be taken into account during subsequent testing 1 Prior to performing self calibration connect a test lead between the enclosure and earth connectors or the dual lead inputs on the front face of the QA 90 see below Disconnect all other leads Test Lead Enclosure to Earth Test Lead Dual Lead 2 Press SETUP F3 in MAIN MENU 3 Press CAL F3 in SYSTEM SETUP 4 Inthe SELF CALIBRATION window select an option by press ing either Calibrate test lead enclosure ground F6 or Cali brate test lead dual float F5 Equipment Code Sum Sequence Name sd Class GLI 0 leads in 0 modules D 4 1 4 2 Connecting an In strument without Pa tient Inputs 5 Ensure that the mains switch on the instrument to be tested is switched ON If the message REVERSED POLARITY is shown in the MAIN MENU reverse the mains plug 4 2 SYSTEM SETUP Operator Estab lishment SELF CALIBRATION Calibrate test lead enclosure earth gt 5 The test result for the calibration appears in the display when the test is complete Test lead enclosure grnd XXX mOhm Test lead dual float gt mOhm Connect the mains plug of the instrument to be tested to the QA 90 s terminal on the front panel Then connect a calibrated test lead be tween the ENCL connector on the front panel of the QA 90 and the casing of the instrument to be tested See below
35. d the transmission will Start If the communication is successful gt gt gt gt gt gt gt will appear conti nuously at the display on the QA 90 When the program is trans mitted a normal startup menu will appear on the QA 90 The computer will either show a picture for program transmission or a clear screen 4 Check the Calibration Constants Check the calibration constants in the QA 90 through the hidden menu If necessary press F5 F6 or F7 to type your noted calibra tion constants then press ENTER 44 To store in Flash memory go back to SYSTEM SETUP SYSTEM SETUP Operator SE 6 Establishment 512 Press STORE F2 and the display will show you setup parame ters stored in flash 3 9 Cleaning the QA 90 The outside of the instrument may be cleaned using a damp cloth and A mild detergent Please note that solvents like Methanol may dam mage the overlay and cabinet This page intentionally left blank 4 1 Test Lead Calibration AN 4 Example Test Measurements This chapter contains test examples for the QA 90 illustrating equip ment connections for the tests as well as step by step procedures for obtaining desired test measurements For more information on safety testing and an explanation of protective classes refer to Appendix A IEC 601 1 UL 2601 1 AND VDE 0751 Testing The self calibration function of the QA 90 is used to determine test lead resistance and for the values to
36. e is in series with the load Use the digital mul timeter in the 0 3 A range and the same instrument with a cur rent probe HP34330A or similar in the range 3 A The probe and digital multimeter are calibrated together a b Press Current Consumption F5 Press START F1 Press STOP F1 Check that the UUT and the reference digital multimeter values are equal If they are not equal ad just the CC I constant 5 9 d Press GO BACK F2 then press MORE F1 to advance to Manual Test Setup Window 2 10 Protective Earth AA IMPORTANT AN ENSURE THAT THE TEST LEADS ARE CALIBRATED BEFORE CONDUCTING THIS MEASUREMENT METRON RECOMMENDS THAT WHEN CALIBRATING THE QA 90 TEST LEAD CALIBRA TION BE DONE AT LEAST TWICE a Press Protective Earth F7 b Connect the test leads between EARTH and ENCL c Press START F1 QA 90 will time the measurement and stop automatically Take measurements at 0 100 500 1000 and 2000 mQ with a Metron calibrating unit Note that the test current is delivered by a transformer located on the right side of the cabinet In low mains voltage this transformer will not deliver the IEC UL recommended 10 A If you are doing repetitive testing and the transformer gets hot it may turn off for a while to prevent overheating It is not rated to deliver in excess of 25 A in short circuit condition A trans former for 100 120 V mains is available from METRON d Press GO BACK F2
37. ect either Rapid or Normal Press Test Mode F5 and select either Automatic or Ma nual Press PL on the keypad to obtain the recording window for patient lead Press Module Code F7 if you wish to record the name of a new module Press ENTER 1 Press No of leads F6 to enter the number of leads Press ENTER 1 Press Type F5 to select protective class Press ADD F1 to accept The number of modules stored will be shown in parenthesis in the Module Code line Repeat as required to enter a new patient module Press GO BACK F2 to return to the menu Press START F4 in the MAIN MENU to start the test Equipment Code Sequence Name Class GLI 0 leads in 0 modules 4 4 AA Test according to Test Type Test Mode EC60601 1 Manual 4 5 Module Code No of leads 6 lt ADD GO PR F1 A A 4 4 Power Cable Test The earth lead in the power cable is tested as follows Plug the power cable into the front panel of the QA 90 then connect a calibrated test A lead between ENCL and the each pin on the power cable Test Lead NOTE Ensure that the test leads are calibrated BEFORE the test 1 Press MORE F1 in MAIN MENU 2 Press Test Mode F5 and select Manual 3 Press START F4 4 Press MORE F1 in MANUAL TEST SETUP 5 Press Protective Earth F7 6 Press START F1 Equipment Code oe Sequ
38. ence Name RE 6 Glass GLI 0 leads in 0 modules A F4 A Test according to Test Type Test Mode 4 6 F2 F3 F4 MANUAL TEST SETUP Protective Earth Insulation Resistance Earth e Current Seconds 4 5 Current Measurement Test Dual Lead This test measures leakage current from one instrument to another in strument Instrument Instrument under test under test 1 Press MORE F1 in MAIN MENU 4 7 4 8 Press Test Mode F5 and select Manual Press START F4 Press MORE F1 in MANUAL TEST SETUP Press MORE F1 three more times Press Current Measurement Dual Lead F7 Press START F1 DD FON GR 3 Equipment Code Sequence Name Glass GLI 0 leads in 0 modules A Test according to IEC60601 1 Test Type Test Mode Automatic A MANUAL TEST SETUP Mains Voltage Current Consumption A Current Measurement Dual Lead Voltage Measurement Dual Lead Resistance Measurement Dual Lead A Open Supply Result Measure between E and E inputs F1 F2 F3 F4 4 6 Voltage Measurement Test Dual Lead Measuring voltage potentials to a specified reference QA 90 I A A i LEADS Instrument under test 1 Press MORE F1 in MAIN MENU Press Test Mode F5 and select Manual Press START F4 Press MORE F1 in MANUAL TEST SETUP Press MORE F1 three more times Press Voltage Measurement Dual Lead F6 Press START F1 p
39. ent and the current readout on the QA 90 display are equal Press STOP F1 Press the PL key on the keypad then press PREV F3 or NEXT F4 to ensure that the module with Patient Lead 11 blue lead is active Press GO BACK F2 to return to the test window then press START F1 and run the same test between Patient Lead 11 and EARTH Repeat the test with different current values Press STOP F1 Press GO BACK F2 to return to Manual Test Setup Win dow 3 Patient Leakage Current DC a b Press Patient Leakage Current DC F5 Select Normal Condition F7 Press the PL key on the keypad to ensure that the module with Patient Leads 1 10 white leads is active If not press PREV F3 or NEXT F4 so that it is active Press GO BACK F2 to return to the test window then press START F1 Use a current source to generate an DC current between Pa tient Leads 1 10 and EARTH Check that both the level of this current and the current readout on the QA 90 display are equal Press STOP F1 Press the PL key on the keypad then press PREV F3 or NEXT F4 to ensure that the module with Patient Lead 11 blue lead is active Press GO BACK F2 to return to the test window then press START F1 and run the same test between Patient Lead 11 and EARTH Repeat the test with different current values Adjust the General I constant if the values between UUT and reference are not equal Press STOP F1 Press GO
40. ent measurement for the PE and RMDL tests When the parameter value increases the measurement value increases CC I constant Adjust the current measurement for Current Con sumption When the parameter value increases the measurement value decreases IR R constant Adjust the resistance measurement for Insulating resistance When the parameter value increases the measurement value decreases The calibration occurs with a calibrating resis tance of 190 210 mQ Make sure that the power of 500 V is set correctly and that the apparatus has reached its operating temper ature 5 15 6 1 Theory of Operation 6 Component Functions and Parts This chapter provides a detailed description of the functions of the main components of the QA 90 as well as a parts list for cross reference The QA 90 comprises three printed circuit boards a metering board processor and keypad board There is are two sets of schematic dia grams in Appendix B for the measuring system comprising eight schematic diagrams and a set for the processor keypad system com prising six pages The circuit boards are supplied from a 40 W medical grade power source which delivers 12 Volt and 5 Volt In addition a tempera ture protected transformer is connected to the mains to supply a test current of up to 30A for protective earth measurements The QA 90 is an electrical safety analyzer based on a 68HCII Motoro la microprocessor and a measuring system
41. etronus aol com E mail metronfrance Q infonie fr E mail support metron no METKON mm From name Address QA 90 Error Report Product Version Type Wrong results Error messages without reason Other Description of the situation prior to the error Program stops no reaction Wrong responses on commands Description of the error METRON use internally Received date Comments Critical Correction date Minor C 1 This page intentionally left blank APPENDIX D SUGGESTION FORM QA 90 A 90 ELECTRICAL SAFETY ANALYZER SUGGESTION FORM 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 447 7382 8500 Fax 1 616 454 3350 Fax 33 1 6078 6839 Fax 47 7391 7009 E mail metronus aol com E mail metronfrance Q infonie fr E mail support metron no METKON mm From name Address QA 90 Improvement Suggestion Product Version Type One window Presentation Several windows Options configuration possibilities Documentation Other Description of the suggested improvement METRON use internally Received date Comments pes date mm No D 2 METR N
42. frequen cies that differs from the nominal mains supply the test voltage must be connected to the auxiliary inlet To route the auxiliary power to the contact on the front panel the procedure below must be executed 1 2 3 4 Press SETUP F3 in MAIN MENU Press MORE F1 in SYSTEM SETUP Press MORE F1 three more times Press External Isolating Transformer F7 and select Y Yes Equipment Code Sequence Name Glass GLI SYSTEM SETUP Operator Establishment External Isolating Transformer Acoustic alarm for failed test Auxiliary Power 4 13 This page intentionally left blank 5 1 Required Test Equip ment 5 2 Preparation and Adjustments 5 Control and Calibration This chapter explains the QA 90 maintenance procedures including testing and calibration Power source with a range of 0 10 mA Variref VF12 Digital multimeter Range O 16 A Digital multimeter Range 0 V and 500 V HP34401 or similar Metron calibrating unit for earth protection MO Metron calibrating unit for insulation resistance MO Adjustable equipment with an effective output ranging from O to 16A for calibrating current consumption Test leads Insulated transformer IMPORTANT BEFORE TESTING THE QA 90 MUST BE POWERED ON FOR AT LEAST 30 MINUTES PRIOR TO CONDUCTING ANY TESTING Startup Preparation a Press MORE F1 in MAIN MENU b Press Test according to F7 and select UL 2601 1 c Press Test
43. ge e Press GO BACK F2 to return to the previous display e Press MAIN MENU F4 to start the test The three main sequence displays are shown below Sequence name Store seq in memory Print sequence F1 F2 F3 F4 List all sequences in memory Print all sequences in memory Sequence name Delete sequence in memory Delete all sequences in memory SETUP F3 This function is used for entering general information in connec tion with the test Seven main displays are shown below SYSTEM SETUP Operator Establishment QA 90 Serial no IT Net Power up delay time QA 90 Serial no IT Net Power up delay time 3 7 3 8 F1 F2 F3 F4 Stop at new power config Stop before new power config Stop at new module Multiple Protective Earth Tests Multiple Enclosure Tests PE Test Current External Isolating Transformer Acoustic alarm for failed test Auxiliary Power Language English Date XX XX XXXX gt Time HH MM SS gt Recording and Storing Patient Modules and Patient Leads e Press PL on the keypad to obtain the window for recording patient modules and leads Module Code No of leads FI F2 F3 F4 e Go to the next patient module stored e Go to the previous patient module stored e Return to the previous menu Press ADD F1 to save in the memory e Press Module Code F7 to record the code name of a new patient module e Press ENTER J e Pres
44. heck the printout for legibili ty Then press Print failed results F5 Check the printout for legibility AN IMPORTANT N ENSURE THAT YOU SAVE THE CALIBRATION CONSTANTS TO FLASH SP VMDL U constant Adjusts the voltage measurement for Supply Voltage and Voltage Measurement Dual Lead When the parameter value increases the measurement value decreases Ca librates at 200 230 V alternating voltage This is best done at Dual Lead Measure with AC voltage with polarity changed Add the measurements to get the average and calculate the correct constant PEIRMDL U constant Adjust the voltage measurement for Protective Earth and Resistance Measurement Dual Lead When the parameter value increases the measurement value decreases This value does not usually change The default value is 84 30 IR U constant Adjust the resistance measurement for insulating resistance When the parameter value increases the measurement value increases The calibration occurs with a calibrating resis tance of 90 110 mQ Ensure the power of 500 V is set correctly and that the QA 90 has reached its operating temperature General I constant Adjust the current measurement for PLC ALC MAP EnLC ELC CMDL and the IR tests When the pa rameter value increases the measurement value decreases The calibration and calculation of the parameter occurs with a current of 1000 10000 HA from the calibration instrument PE RMDL I constant Adjust the curr
45. in 0 modules gt Fi F2 F3 F4 c Scan an improperly formatted instrument bar code The QA 90 should beep to indicate this error d Scan a properly formatted instrument bar code Check to see that the Equipment Code and Equipment Class are entered in the display e Follow the procedure in paragraph 3 6 to advance to the dis play window containing the Module Code No of Leads and Type Module Code 2 leads ad ona adios gt 6 lt Fi F2 F3 F4 f Scananimproperly formatted patient lead bar code The QA 90 should beep to indicate this error g Scan a properly formatted patient lead bar code Check to see that the Module Code No of Leads and Type are en tered in the display Automatic Test Sequence with Printout This checks the QA 90 s sequence testing function For the printout function a printer must be connected to the QA 90 and be ON See chapter 2 for additional information a Return to the QA 90 s main menu then press MORE F1 twice to arrive at page 3 Test according to Test Type Test Mode 5 5 Calibration Constants b Select Automatic in Test Mode F5 Press START F4 QA 90 will then commence an automated sequence test c When the test is completed the following Test Results Win dow appears TEST FAILED Print Test Results gt 6 Print Failed Results gt APRA d Press Print test results F6 C
46. isplay Type LCD graphic display Alphanumeric format 4 lines 40 characters Data Input Output 2 Parallel printer port 1 Bi directional RS 232C 1 for computer control Power From 110 VAC to 240 VAC 47 63 Hz 3900 VA Do not exceed 16 Amps of current at any voltage within the operating range Installation Category II Fuses Two 16 Amp 250V slow blow fuses 1 3 1 4 Mechanical Specifications Housing Metal case Height 13 2 cm Width 34 2 cm Depth 30 5 cm Weight 5 8 kg Standard Accessories User and Service Manual QA 90 Additional Accessories Carrying Case Carrying case ext printer Bar Code Reader Isolating transformer 400VA Isolating transformer 800VA Test unit ESA E input measuring cable 2m E input measuring cable 5m Clamp crocodile type PRO Soft QA 90 software PRO Soft QA 90 DEMO User Service Manual PRO Soft QA 90 Storage 3 9 in 9 8 in 11 0 in 4 1 lbs P N P N P N P N P N P N P N P N P N P N P N P N P N 11025 11100 10500 11400 11401 11410 11402 11411 11415 11412 11200 11201 11225 4 5 5 Tr ol Store in the carrying case in dry surroundings within the tem perature range specified There are no other storage require ments Periodic Inspection The unit should be calibrated every 12 months 2 1 Receipt Inspection and Return 2 Installation This chapter explains unpacking receipt inspection and claims and the gene
47. ive analyzer if the fault is due to a manufacturing defect In no event will METRON or its local representatives be liable for direct indirect special incidental or consequential damages arising out of the use of or inability to use the QA 90 Electrical Safe ty Analyzer even if advised of the possibility of such damages METRON or its local representatives are not re sponsible for any costs loss of profits loss of data or claims by third parties due to use of or inability to use the QA 90 Electrical Safety Analyzer Neither METRON nor its local representatives will accept nor be bound by any other form of guarantee concerning the QA 90 Electrical Safety Analyzer other than this guarantee Some jurisdic tions do not allow disclaimers of expressed or implied warranties in certain transactions therefore this statement may not apply to you Trademarks IBM is a registered trademark and PC XT is a trademark of IBM Corporation Microsoft is a registered trademark and Windows is a trademark of Microsoft Corporation ii Table of Contents MANUAL REVISION RECORD 5 erro eie orbe Ph ee ER a Poo eoe eina deep Ea V 1 INTRODUCTION siec sodowa odd 1 1 1 1 90 FEat TE S A TRE A WSP ak O OPLA 1 1 1 2 HL EE 1 1 1 3 General Information eee Ege tete rete Sues
48. l not be accepted without authorization from METRON A S or its representative 2 1 2 2 Setup AN NOTE Some RS 232C cables are missing the connection between the se venth and the eighth wires in the cable The cable may still be called NULL modem but it will not work with the QA 90 Refer to the PRO Soft QA 90 Users Manual for more information 2 3 Power 2 4 PRO Soft QA 90 1 Equipment connection is as shown in the typical setup below At tach the printer cable to the 25 pin outlet port Printer Cable METRAN QA30 2 If PRO Soft QA 90 is being used attach an RS 232C null mod em data transfer configured cable to the 9 pin D sub outlet port located at the rear of the QA 90 Do not attach the printer cable to the QA 90 See below Printer Main On Off Switch QA 90 should remain off for at least 5 seconds before switching on again in order to allow the test circuits to discharge fully PRO Soft QA 90 is a front end test automation and presentation tool for METRON s QA 90 Electrical Safety Analyzer It allows you to conduct the same tests but by remote control via an IBM compatible PC XT with MS Windows Version 3 1 or later Additionally the NOTE PRO Soft QA 90 has its o
49. meric 0 99 2 Separator 1 must be included Type BF CF B 2 must be included Example mnopqrst 2 B Module code mnopqrst Number of leads 2 Module type B 3 3 3 4 Menu and Function Keys The QA 90 uses displays function keys and a keypad to provide flex ibility and control over operations The top three lines in the display are used for messages status and results The menu bar is shown at the bottom of the display Function keys are numbered from F1 to F7 A function menu is selected by pressing that key which is directly be low to the right of the menu unit shown in the display 3 5 Display Menus and Messages 1 Startup Screen The following screens will be displayed in se quence for the first 10 seconds after the QA 90 has been switched on METRON QA 90 A Boot software version X XX METRON QA 90 A Version X Date DD MM YYYY METRON QA 90 Electrical Safety Analyzer TOTAL MEMORY 114688 A TOTAL MEMORY USED AGI TOTAL FREE SPI 2 Main Menu A u A A TX JX Equipment Code 1 2 F7 Sequence Name F6 Class GLI 0 leads in 0 modules gt F5 MORE MEMORY SETUP START F1 F2 F3 F4 3 MORE F1 When MORE F1 is pressed the following dis play will appear Test according to IEC60601 1 Test Type Test Mode Automatic F2 pa F4 A This window offers the following functions e Press Test according to F7 to select either IEC
50. n 1 mOhm Accuracy 2 of full scale 1 LSD Range 51 200 mOhm Resolution 1 mOhm Accuracy 2 of full scale 1 LSD Leakage Currents All measurements can be performed with a IEC 601 1 filter patient equiva lent or without flat frequency response The filter can be exchanged with filters covering other standards All measurements can be performed as true RMS measurements or AC DC measurements The following leakage currents can be measured Ground leakage current No of Tests 4 Enclosure leakage current No of Tests 6 or multiple 1 3 General Information The following leakage currents are measured for each module Patient leakage current No of Tests 6 Mains on applied part leakage current of Tests 2 Patient Auxiliary current Vo of Tests 6 Floating dual lead measurement of No of Tests Multiple leakage currents In one test run a maximum of 11 modules with different protection classes may be tested Accuracy Range 1 0 100 pA Resolution 1 pA Accuracy 2 of full scale 1 LSD Range 2 100 1000 pA Resolution 1 pA Accuracy 2 of full scale 1 LSD Range 3 1 0 10 0 mA Resolution 1 pA Accuracy 1 of full scale 1 LSD Frequency Response DC 1 MHz 3dB with a crest factor of gt 2 The applied test voltage for patient leakage current is 110 of the line vol tage delivered through a limiting resistor of 47 kOhm Temperature Requirements 15 C to 35 C when operating 0 C to 50 C in storage D
51. n Layer 1 B 4 Measuring Board Component Location Layer 2 B 5 Measuring System Schematic Diagram Part 1 Measuring Preparation B 6 Measuring System Schematic Diagram Part 2 High Voltage Interface B 7 Measuring System Schematic Diagram Part 3 High Voltage Logic B 8 Measuring System Schematic Diagram Part 4 High Voltage Drivers iw INS 0238 TIF3ZE 2382 IBNFOZ 2 Rz3BB 0470A D47BR Bh 4 71 zs88 TIPSIC A2314 lt 12210 TL 71BTC 2317 0470A RZ318 0470A LF cz31B 1 2 E2311 7 ZNZFOI d RZ3I5 M8R 02310 TIP3IE DESCRIPTION High Voltage Drives HVDRVI DRAW CAT METRON Schematic diagram Part 4 DRAW NO E160 20 2300 U3 DATE QA 90 17 10 1995 B 9 Measuring System Schematic Diagram Part 5 Applied Part Matrix J24BB 1 14 1 411 PI 1 524B9 A PI 12 418 A 7 PI 1 52402 1 12 404 A PI I 52405 A 1 12 s 5 RELAY BUS 4 A Z PI I 2423 A PI l 242 52428 1 12 52426 A
52. nent Location esee B 13 Keypad Board Component Location sees nne nennen een rennen enne B 14 Microprocessor System Schematic Diagram Part 1 90 2 2 B 15 Microprocessor System Schematic Diagram Part 2 Integrated B 16 Microprocessor System Schematic Diagram Part 3 CPU sese B 17 Microprocessor System Schematic Diagram Part 4 Memory sees B 18 Microprocessor System Schematic Diagram Part 5 Printer and Display Interface B 19 Microprocessor System Schematic Diagram Part 6 Series and Keypad Interface B 20 This page intentionally left blank Mains amp EUT Connections Schematic Diagram 1 1 NTIECP JFBZ NTIECP JZEB J260 RELAY MEASURING E164 zh 2444 ua 1 4 ON OFF z 3 SFA NT 2 16 a Jor D 5 21 1 2 12 SFZB A PIS DESCRIPTION Mains 8 EUT Connections DRAW CAT METRON Schematic diagram DRAW NO E160 20 0F00 U3 DA TE QA 90 20 11 1995 B 3 Measuring Board Component Locatio
53. ng To IEC 601 1 UL 2601 1 A 13 4 System Tests Based on IEC 601 1 26011 15 5 Tests According To VDE 0751 1 10 1990 0 20 1 A 16 APPENDIX DIAGRAMG csssssssssssssssssessssssessessssessesessessessssessessssessessssessasessessesessessesesseseesers B 1 Mains amp EUT Connections Schematic Diagram esee B 3 Measuring Board Component Location Layer 1 B 4 Measuring Board Component Location Layer 2 eene nennen B 5 Measuring System Schematic Diagram Part 1 Measuring B 6 Measuring System Schematic Diagram Part 2 High Voltage Interface sues B 7 Measuring System Schematic Diagram Part 3 High Voltage Logic sees B 8 Measuring System Schematic Diagram Part 4 High Voltage Drivers B 9 Measuring System Schematic Diagram Part 5 Applied Part B 10 Measuring System Schematic Diagram Part 6 Measurement B 11 Measuring System Schematic Diagram Part 7 Program Amplifier and Lowpass B 12 Measuring System Schematic Diagram Part 8 Relay B 13 Microprocessor Board Component B 14 Keypad Board Component Location
54. nstrument under test e For Type BF and CF equipments measures with the AP GND switch 53 open and closed e Maximum leakage current 100 uA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST Applied Part INSULATING PAD 2 Test LP 2 Patient Leakage Current Normal Condition e Applicable to internally powered equipment Types B BF and CF e Measures the patient leakage current from the Applied Parts to the enclosure e For Type BF and CF equipments measures with the AP GND switch S3 open and closed e Maximum auxiliary current Types and BF 100 uA Range DC and AC up to 1 kHz For Type CF 10 uA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST Test I P 3 Patient Leakage Current S F C Mains on Applied Part Applicable to internally powered equipment Types BF and CF Measures the patient leakage current from the Applied Parts to the enclosure caused by the ex ternal mains voltage on the Applied Part Maximum auxiliary current Type BF 500 uA Range DC and AC up to 1 kHz Maximum auxiliary current Type CF 50 uA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST Applied Part MD Signal part rd in and or output Test I P 4 Patient Auxiliary Current Normal Condition Applicable to internally powered equipment Types B BF and CF Measures the current flowing from one of the Applied Parts and all the others in parallel AP
55. onal Electrotechnical Committee IEC Standard 601 1 Underwriters Laboratories UL Standard 2601 1 and Verband Deutscher Elektrotechniker e V VDE 0751 Stan dard tests their functions applicability and equipment connections A 1 Classification of Equipment Electrical safety begins with considering the mains electricity supply and how to feed that into an item of equipment so that it is able to power the electronics internally and at the same time ensure that there is no possibility of the mains power coming into contact with either the patient user or a third person The classification of equipment under IEC 601 1 and UL 2601 1 describe how the mains part insulation is achieved The techniques used include air clearance insulating materials basic or functional insula tion creepage distances and double insulation 1 Class 0 The mains part is completely separated from any of the accessible parts The separation is achieved by basic insulation This is not used in medical applications MAINS L 224 Basic insulation 2 Class 1 In addition to the basic insulation there is protection via the protective earth conductor in the mains lead This is intended to connect all the equipment s accessible parts to earth The major ity of electromedical equipment is Class 1 equipment MAINS L Protective Earth Conductor Basic insulation 3 Class2 Equipment of this class is constructed with double insulation i e
56. onverter output offset may be adjusted if 52630 pins 1 and 2 are shunted If 52630 pins 2 and 3 are shunted the offset of U2630 is disabled Never move this jumper on a calibrated QA 90 because it will cause a fault of about 1 5 on the measurements How ever if the QA 90 is not yet calibrated the jumper may be moved The offset adjustment of U2630 is not mandatory but it results in small measuring improvements Before offset adjustment we recommend you remove mea suring amplifier U2600 from its socket Make a short be tween SGND and pin 1 of U2630 Measure the voltage of output pin 6 and SGND Adjust R2630 to an offset value as close to zero as possible b Measuring Amplifier Adjustment is possible if S2600 pins 2 and 3 are shunted The adjustment is disabled if the jumper is between pins 1 and 2 1 Select Enclosure Leakage Current F7 2 Select Normal Condition F7 3 Press START F1 and generate a current of 1 mA be tween ENCL and Chassis Note the result and limits readout on the QA 90 s display The offset adjustment capability is unavailable in QA 90 firmware versions before 2 xx 5 3 54 4 5 Change polarity and take a new measurement Adjust values for both polarities to be equal Several adjust ments in both directions may have to be made Select GO BACK F2 to return to Manual Test Setup Window 3 ZA 5 3 Calibration WARNING A HIGH VOLTAGES ARE CAPABLE A OF CAUSING DEATH USE
57. or other measurement items relays for connecting an attenuator and for a filter patient equivalent Schematic Diagram E160 20 2600 U3 Prog Amplifier and Lowpass is the measuring unit itself with a balanced measurement amplifier B amp B PGA202 CU2600 with variable gain controlled by uP via opt ical isolators The measurement amplifier module is supplied by a separate power supply based on a DC DC converter that provides 15 Volt The SGND earth system for this power is isolated from GND and the mains OPA602 and R2616 are used to offset adjustment of the measurement amplifier Normally this is unnecessary thus there is a jumper between pins 1 and 2 on 52600 to avoid using the DC offset function U2610 is a filter that is operated by the S2420 relay during insulating resistance measurements Signals from the measurement amplifier continue to an RMS to DC converter AD536AK which in turn generates a DC signal on a circuit for voltage to frequency con version U2641 LM231WM The output signal A D frequency goes to uP via optical isolators Refer to Drawing No E160 20 1000 01 containing six schematic diagrams Refer to Schematic Diagrams 1 through 3 QA 90 Integrated Key board QA 90 and CPU QA 90 The processor system is divided into 5 function blocks comprising a CPU memory display printer inter face serial and keypad interface and keypad board The QA 90 s CPU and keypad board are located behind the front pan el The
58. ral procedures for initial QA 90 setup Example test setup procedures are contained in Chapter 4 Example Test Measurements 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 e QA 90 Electrical Safety Tester 11200 e QA 90 User and Service Manual 11025 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 informed measures will be taken to either repair the unit or dispatch a re placement The customer will not have to wait for a claim to be investigated 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 shipping Otherwise repack the unit using e areinforced cardboard box strong enough to carry the weight of the unit e atleast 5 cm of shock absorbing material around the unit e 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 war ranty does not cover freight charges C O D wil
59. resistance between the Applied Part to the Protective Earth terminal of the instrument under test Minimum 10 0 MOhms INSTRUMENT UNDER TEST Applied Part INSULATING PAD 4 Test E L C 1 Earth Leakage Current Normal Condition Applicable to Class 1 Types B BF and CF e Measures earth leakage current of the instrument under test connected to the mains power supply normal and reversed polarity using S2 e For Type BF and CF equipments measures with the AP GND switch 53 open and closed e Maximum leakage current 500 uA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST L N o p N L Applied Part INSULATING PAD 5 Test E L C 2 Earth Leakage Current S F C Open Supply e Applicable to Class 1 Types B BF and CF e Measures earth leakage current of the instrument under test with one open supply lead inter rupted S1 open normal and reversed polarity using S2 A 5 A 6 For Type BF and CF equipments measures with the AP GND switch 53 open and closed Maximum leakage current 1000 uA Range DC and AC up to kHz INSTRUMENT UNDER TEST L N N O q N L Applied Part INSULATING PAD Test ENCL 1 Enclosure Leakage Current Normal Condition Applicable to Classes 1 and 2 Types B BF and CF Measures leakage current of the exposed metal parts of the instrument under test normal and reversed polarity using S2 For Type BF and
60. s No of leads to enter the number of patient leads e Press ENTER J e Press Type F5 to select protective class B BF CF 3 9 3 6 Measurements with Several Modules in Manual Mode e Press ADD F1 to save in the memory The number of mod ules stored will be shown in parenthesis in the Module Code line e Repeat the above guidelines to enter the next module e Press NEXT F4 to go to the next patient module stored Press PREV F3 to go to the previous patient module stored e Press GO BACK F2 to return to the previous menu START F4 This function starts the test sequence Manual or automatic test sequences are selected under MORE F1 in MAIN MENU When you perform measurements on several modules in Manual Mode and want to select which module to measure use the following procedure Press MORE F1 in MAIN MENU Equipment Code tds Sequence Name 222 6 Glass GLI 0 leads in 0 modules A A F4 zx 2 Press Test Mode F5 and select Manual Press START F4 Test according to IEC60601 1 Test Type A Test Mode Manual FI F2 F3 F4 Press MORE F1 in repeatedly until you find the desired mea surement e g Mains on applied part F5 MANUAL TEST SETUP Mains Voltage Current Consumption F5 MORE MAIN MENU F1 F2 F3 F4 4 Press PL on the keypad to obtain the recording window for Module Code and No of leads Module Code
61. sures patient leakage current to earth from all Applied Parts in parallel normal and re versed polarity using S2 Maximum leakage current Types and 100 uA Range DC and AC up to 1 kHz For Type CF 10 uA Range DC and AC up to 1 KHz A 7 Not present in Class 2 INSTRUMENT UNDER TEST L N o N L Applied Part INSULATING PAD MD 10 Test P L C 2 Patient Leakage Current S F C Open Supply e Applicable to Classes 1 and 2 Types B BF and CF e Measures patient leakage current to earth from all Applied Parts in parallel with one supply lead interrupted S1 open normal and reversed polarity using S2 e Maximum leakage current Types B and BF 500 uA Range DC and AC up to 1 kHz For Type CF 50 uA Range DC and AC up to 1 kHz Not present in Class 2 INSTRUMENT UNDER TEST L N INF o N L Applied Part INSULATING PAD MD 11 Test P L C 3 Patient Leakage Current S F C Open Earth e Applicable to Class 1 Types B BF and CF e Measures leakage current to earth from all Applied Parts in parallel with the Protective Earth open circuit S4 open normal and reversed polarity using S2 e Maximum leakage current Types B and BF 500 uA Range DC and AC up to 1 kHz For Type CF 50 uA Range DC and AC up to 1 kHz A 8 INSTRUMENT UNDER TEST L N N L Applied Part INSULATING PAD MD 1
62. switch is used to obtain all AP combinations Maximum auxiliary current Types and BF 10 pA DC 100 Range AC 0 1 Hz up to 1 kHz Maximum auxiliary current Type CF 10 pA Range DC and AC up to 1 kHz INSTRUMENT UNDER TEST Applied Part PAS PA4 A 4 System Tests Based on IEC 601 1 UL 2601 1 1 Test SYS 1 Enclosure Leakage Current Normal Condition INSTRUMENT UNDER TEST different equipment at the same time Signal part L O in and or output o 0 0 N 52 51 Applicable to Classes 1 and 2 Types and Measures leakage current of the exposed metal parts of the instrument under test and between parts of the system within the patient environment normal and reversed polarity using S2 Maximum leakage current 100 uA Range DC and AC up to 1 kHz MEDICAL ELECTRICAL SYSTEM Not present in Class 2 Can be multiple different connections to o N L 84 d PE d MD Applied Part 2 Test SYS 2 Enclosure Leakage Current S F C Open Earth Ground L N output output o Oro e AN S2 OTHER INSTRUMENT Applicable to Class 1 Types B BF and CF Measures leakage current of the exposed metal parts of the instrument under test with Protec tive Earth open circuit S4 open and between parts of the system within the patient envi ronment normal
63. t e Then go to the hidden menu under F1 in the menu for Self Calibration SELF CALIBRATION Calibrate test lead enclosure earth gt 3 13 Note the values on the three constants that appear on the dis play Press MORE F1 to get the three next constants Press MORE F1 to get the last constant NB Automatic MAP calibration ONLY for production calibration The QA 90 software upgrade contains two files comqa90 exe the communication between computer and the QA 90 and qa90 xxx a07 is the program for QA 90 XXX indicates the version of the firmware 2 Prepare the QA 90 for the software upgrade Reading the program to Flash memory in the QA 90 Press and hold PL and CLR at the same time while turning the QA 90 on The display will show the following The software in the QA 90 is missing To download new software run COMMQA90 on the PC and press ENTER on QA 90 The QA 90 is ready to receive data 3 Prepare the PC for the upgrade Connect an RS 232 cable between PC and QA 90 Insert the disk that contains the QA 90 upgrade program Write COMMQA90 EXE DOS Press ENTER 1 A menu will appear on the computer Choose menu 1 SET PARAMETERS and choose new pa rameters or default values Choose menu 2 START COMMUNICATION by pressing 2 Enter filename QA90 XXX A07 where XXX is the version of the firmware Check the file Press ENTER 4 on the computer e Press ENTER 4 on the QA 90 an
64. that is galvanicly isolated from the processor The unit is controlled from the front panel and it is possible to select either manual mode for measuring voltage cur rent and resistance or an automatic test cycle that provides full safety testing in accordance with specified standards The following standards may be compiled either fully or in part IEC 601 1 UL 2601 1 IEC 601 1 1 UL 2601 1 1 IEC 601 2 4 IEC 1010 1 EN 60601 1 VDE 0750 12 91 BS 5724 CAN CSA C22 2 No 601 1 M90 AS 3200 1 NZS 6150 1990 VDE 0751 T1 12 90 VE 0751 UL 544 HEI 95 HEI 158 among others The measurement results which are shown in the unit s LCD display may be stored in the unit s internal memory or printed out on an ex ternal printer A serial port RS 232c enables the unit to be con trolled from a PC simply by using the PRO Soft QA 90 soft rare program The unit has a separate input for a bar code pen which may be used to record instrument code and class module code and number of patient leads and classes The instrument is controlled from an alphanumeric keypad contain ing nine blue soft keys and seven function keys located around the LCD display These are used to select the functions shown in the dis play In addition there is a separate key for selecting patient leads a CLR a return key and a confirmation ENTER key 6 1 6 2 Measuring System 6 2 AII terminals for connecting the machine under test to are loc
65. two distinct insulating layers around the mains part The purpose is that should the basic insulation of the mains part fail and then a second insulating barrier exists to prevent the mains from coming into contact with the user or patient See illustration below MAINS Extra insulation Basic insulation 4 Class 3 Equipment of this classification is no longer manufactured and the classification was removed from IEC 601 1 in 1988 The equipment was powered via an isolating or safety transformer which generated at its secondary winding a Medical Safety Extra Low Voltage MSELV Safety Transformer Basic insulation 5 Symbols A particular degree of protection afforded a patient against an electric shock arriving from the applied part defines the type of applied part The symbols for each type of protection are shown be low Symbols _ Description Symbols Description Type B Defib Protection Type BF Defib Protection Type CF Defib Protection B Classes 1 2 or 3 equipment or I P equipment providing an adequate degree of protection against electrical shock particularly regarding allowable leakage cur rents and reliability of the protective earth connection BF Type B equipment with an F type isolated floating applied part CF Classes 1 or 2 equipment or I P equipment providing a high degree of protec tion against electrical shock particularly with regard to allowable leakage cur rents
66. wn user manual which contains all the information concerning the program If you order a demon stration version of the program you also receive the manual program has additional features to automate and enhance your elec trical safety testing Each of the QA 90 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 equipment accor dingly 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 Sequences The program maintains a library of these sequences In this way you can store and retrieve sequences that are appropriate for each kind of equipment being tested at your facili ty 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 pro tocol or it may be retrieved by PRO Soft from a database program or other equipment files Protocols can be created easily for each item of equipment in your inventory and stored for use Test protocols with results can be printed or stored on disk and the results of testing can be sent back to the equipment database to close a work order and up date the service history 2 3 This page intentionally left blank 3 Operating Q

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