DELTA 3000
Contents
1. 41 4 2 Defibrillator Output Measurement 41 4 3 Pacemaker Output Measurement 41 4 4 Circuit Block Descriptions 42 5 Troubleshooting DELTA 3000 45 6 Appendix 46 DELTA 3000_User_Manual_R2 doc This Manual is provided to explain the operation of the DELTA 3000 Defibrillator Tester Pacemaker Analyzer ECG Simulator test instrument It is intended for the biomedical engineering or clinical engineering technician involved in the testing of defibrillators and external pacemakers The operator must be familiar with and follow the safety protocols recommended by the device manufacturer Safety Notes 1 Before using the DELTA 3000 read the instruction manual and become familiar with the functions and controls 2 Discharge a defibrillator only into the paddle contacts of the DELTA 3000 Do not discharge a defibrillator into any other connectors of the DELTA 3000 3 The operating instructions of the manufacturers of all defibrillators and pacemakers being tested must be followed Special attention should be paid to automatic and semi automatic defibrillators 4 Do not connect Transthorasic and transvenous pacemakers simultaneously Test only one type at a time 5 Do not change the variable pacer test load while a Transthorasic pacemaker is turned on Turn the pace2. Select the Transcutaneous Pacer Mode Press the Tst F1 key Place the Pacer Select Switch in the TRANS Input position Disconnect the input to the DELTA 3000 Connect the voltmeter to the Vent jacks of the A V Intput connectors Press the ESC key r AQMP DELTA 3000_User_Manual_R2 doc 38 K Read the measurement in mv on the voltmeter display Transcutaneous Pacer Test S le Il rele ltt le LIOI 10 laly Note If the reading measured with the voltmeter is not within 5 of the selected reading the Delta 3000 should be recalibrated 2 14 3 Calibration Check The DELTA 3000 can be configured as a DC voltmeter and used to check the amplitude calibration A Press the CA F2 key to perform the amplitude calibration check B Select Atr or Vtr as the Pacer Type C Input less than 2 volts into the ATR or VENT connectors of the A V INPUT section on the side The DELTA 3000 will measure and display this voltage Calibration Check Cla el Cihie lc Ik Mie a s u r je d Le I8 Yy Note If the reading measured is not within 5 of the Input voltage the Delta 3000 should be recalibrated DELTA 3000_User_Manual_R2 doc 39 2 14 4 Printer Format Selection Different print formats may be selected Press the PrFS F3 key from the Auxilary Menu to select a different format Press the lt gt and gt keys to move through the selections The selections are listed TAB F
3. 2 8 2 9 2 10 Testing External Transvenous Pacers AV 2 10 1 Measuring Pulse Parameters Getting Started Instrument Familiarity Power Up and Initialization Menu Structure Testing a Defibrillator 2 5 1 Energy Measurement 2 5 2 Peak Voltage and Current 2 5 3 Viewing Waveform Output 2 5 4 Measuring Cardioversion Sync Time Testing Semi Auto Defibrillator 2 6 1 Selecting Waveforms _ 2 6 2 Measuring Energy Printing Defibrillator Measurement Data ECG Arrhythmia Simulator 2 8 1 Generating Normal Sinus Rhythm Waveform 2 8 2 Generating Arrhythmia Waveforms 2 8 3 Arrhythmia Waveform Definitions 2 8 4 Amplitude Selection 2 8 5 Generating Performance Waveforms Testing Transthorasic Pacers 2 9 1 Selecting Pacer Manufacturer 2 9 2 Selecting 50 Ohm Test Load 2 9 3 Selecting Variable Test Loads 2 9 4 Measuring Pulse Parameters 2 9 5 Measuring Refractory Periods
4. 4 and5 mV The selected amplitude will be displayed on the second line of the Simulator Menu display The selected amplitude will remain in effect as long as you are in the simulator menu DELTA 3000_User_Manual_R2 doc 23 Note When the DELTA 3000 is switched to the energy mode from the simulator menu the waveform amplitude will return to the default value of 1 mV 2 8 5 Generating Performance Waveforms Sine square triangle and pulse waveforms are available for the performance testing of ECG monitoring equipment A B Press the PERF F3 key in the Simulator Main Menu to select performance waveforms Press either the SINE F1 the SQUR F2 the TRI F3 or the PULS F4 key to select the desired waveform The default amplitude setting of the performance waveforms is 1 mv Press the AMPL F4 key in the Simulator Main Menu to change the amplitude The selected amplitude will remain during testing until it is changed The amplitude will revert to the 1 mv default setting when the DELTA 3000 is turned off The default frequency of the sine square and triangle waveforms is 2 Hz Frequencies of 0 5 1 2 10 15 20 25 or 40 Hz may be selected Press either the lt or key to move through the frequency selections Press the key corresponding to the frequency to be selected The Pulse waveform is a 20 ms waveform repeated every 4 seconds 240 bpm Simulator
5. C The DELTA 3000 is in the energy measurement mode and is ready to make an energy measurement D To measure energy in the low range press the F1 key E HP will change to E LO as in Figure 2 E To measure the energy discharge the defibrillator paddles F In the low range if the discharged energy exceeds 100 joules the display will flash HIGH DELTA 3000_User_Manual_R2 doc 16 Figure 1 Defibrillator Main Menu Bme lk leyre NA Os EOS IO TIe lhwHiLlie s Pale ae Kea alo WEEE oeates aeae es elle Amp E H I C A RD A E D S IM Fl F2 F3 F4 Figure 2 Defibrillator Menu Energy Range E LO F1 Key Pressed Bwe e I Salles e ea cee CLO T o etal eg 2 edea k VEO t s Parema ikae Amp ESEO C A R D A E D SII IM F1 F2 F3 F4 2 5 2 Peak Voltage and Current Each time the defibrillator is discharged the display will update the peak voltage and the peak current displayed in Amps measurement readings 2 5 3 Viewing Waveform Output 2 5 3 1 On a Defibrillator Monitor 1 After the defibrillator is discharged and while the DELTA 3000 is in the energy mode the captured waveform will be available through the ECG leads the paddle contacts and the high level output jack on the side panel 2 Waveforms on the ECG leads and paddles are amplitude scaled to provide maximum output Time is scaled to provide a time expansion of 1 200 The Discharged wave is repeated at 8 second intervals DELTA 3000_User_Manual_R2 doc 17
6. y 0 0 00 Ds seals ELEN GSS s E C G 6 0 b pm EDENE C A RD A E D SIM F1 F2 F3 F4 AED Test Menu F3 Key Pressed AED in Defibrillator Menu Bim le le elyi 101000 Telai e 18 A R R T H E C G Fl F2 F3 F4 DELTA 3000_User_Manual_R2 doc 14 Simulator Menu FP Key Pressed Simulator Menu Seles lease ae lite heel ts A M P 1 m V E C G 6 0 b pm ENCIL AIRIRIT H P E R F AIM PIL F1 F2 F3 F4 Pacer Test Menu Function Selected is Pacer Pacer Power Up Initialization Menu Displayed for 3 Seconds IDES A oa es 3 10 0 10 ela dle le li Vile Ir Ala Ole 16 Pacer Main Menu Automatically Displayed After Power Up sle Mlele i Pla le le lr Tiyo e Paar Ee MESHES F 1 o r F 4 Sa ses a Pied Vie Imit e m F1 F2 F3 F4 Pacer Transthorasic Menu Switch in TRANS INPUT Position XC eae leo le la leli le MDAPAR Sell le te i mila in lu If gle T DRIN Ss Eleda tea le Tr T IS Zao eee HP MDE Teele UE IB F1 F2 F3 F4 DELTA 3000_User_Manual_R2 doc 15 2 5 Testing A Defibrillator 2 5 1 Energy Measurement The DELTA 3000 has high and low energy measurement ranges Up to 1000 joules may be measured in the high range mode and up to 100 joules may be measured in the low range mode A Turn on the defibrillator to be tested and select the energy output following the manufacturer s instruction manual B Turn the DELTA 3000 on and move the function selector switch to the DEFIB mode The Defibrillator Main Menu Figure 1 will be displayed
7. 2 9 6 Demand Sensitivity Tests 2 9 7 Immunity Tests 2 9 8 Measuring Energy DELTA 3000_User_Manual_R2 doc 2 10 2 Measuring Refractory Periods 29 2 10 3 Demand Sensitivity Tests 30 2 10 4 Immunity Tests 31 2 10 5 Measuring AV Interval 32 2 10 6 Measuring Energy 32 2 10 7 Pacemaker Type Selection 32 2 11 Printing Pacer Measurements 33 2 11 1 Printing Without a Header 33 2 11 2 Printing With a Header 33 2 12 Automatic Pacer Testing 34 2 13 Printer Functions 34 2 14 Auxiliary Functions 36 2 14 1 AV Pacer Test Function 36 2 14 2 Transcutaneous Pacer Test Function 37 2 14 3 Calibration Check 37 2 14 4 Printer Format Selection 38 2 14 5 Pacemaker Battery Current Test 39 3 Serial Port Interface 3 1 Introduction 39 3 2 Netech PalmSoft Set Up Procedure 39 3 3 Receiving and Saving Data 40 4 Theory of Operation 4 1 Introduction
8. C 21 2 8 ECG ARRHYTHMIA SIMULATOR The DELTA 3000 is a 12 lead ECG arrhythmia simulator In addition to simulating a normal sinus rhythm and 12 arrhythmia waveforms the instrument will generate four different performance waveforms The Simulator s main menu provides options for arrhythmia ECG and performance waveform selections along with amplitude selections 2 8 1 Generating a Normal Sinus Rhythm Waveform A Connect the patient cable of the ECG monitoring instrument to be tested to the ECG Leads connectors on the side of the DELTA 3000 B Press the SIM F4 key from either the energy or cardio menu of the Defibrillator Tester to turn on the ECG Arrhythmia Simulator C Press the ECG F1 key for normal sinus rhythm The default settings for normal sinus rhythm are 80 bpm and 1 milli volt amplitude Cardio Menu Press SIM F4 Key for Simulator Crate EG ote Ors leas acs ORG m s Bme lt Ia y 0 0 0 0 Teo wn e s E C G 6 0 b pm Ele al C A R D A E D S I IM Fl F2 F3 F4 Main ECG Simulator Menu Press ECG F1 Key to Select Rate S i mhua 1 ja t jo r Amp 1 mv Bee Goal 6 0 b p im E C G A R R T H P E R F AIMP IL F1 F2 F3 F4 D To change the heart rate bpm press the appropriate key Rates of 30 60 80 120 180 240 and 300 are available E The lt and keys advance the rate selection menu F Press the ESC key to return to the Simulator Main Menu 2 8 2 Generating Ar
9. Je e al NIO A Press the Prtr F1 key to select either the Citizen or Seiko compatible printer any generic printer that accepts ASCI format Follow the instructions of the Printer manual for setup 1 Setup the Printer following the Printer Manufacturers user manual 2 Connect the printer cable from the DELTA 3000 to the serial input connector Use Null Modem if necessary 3 Turn the printer ON and press the ON LINE switch on the printer online LED lights up Now the printer is ready to receive data from the DELTA 3000 Select PRI in the main menu of the DELTA 3000 and press the F1 key The Select Printer menu is now displayed showing the printer options Now select F4 Seiko key to print the results B Press the PC F2 key to save the test measurements DELTA 3000_User_Manual_R2 doc 36 PC Quick Link Software To store the results in a PC using Quick Link or PC wedge or other Communications software follow these steps 1 Using the line setting option select Baud Rate 9600 Data Bits 8 Parity None Stop Bits 1 2 Connect the RS232 cable from the DELTA 3000 to the serial port of the PC DB 9 connector and in the Modem setup option of Quick Link select the COM port 3 Select the file option to Receive File 4 gt ASCII and enter a file name to which the DELTA 3000 results are to be stored 5 Once the above selections have been made press PRI in the main menu of the DELTA 3000 and
10. Main Pacer Test Menu Press the Sens F1 key for the demand sensitivity measurement Sensitivity Menu Sens F1 Key Pressed Sle lals lkt Inve ke Ilyas Bol Ye SAMin 4 0 m S Fl F2 F3 F4 ESC C Press the F1 key to select a square Sqr triangle Tri or SSQ waveform D The default sensitivity is 40 milliseconds Press the F2 key to select a different sensitivity 100 200 10 25 and 40 msec are available E STBY will flash on the top line until a measurement is made During the sensitivity measurement the pacemaker pulse rate selection depends on the waveform and the width selected For certain widths and pacer rates the waveform may fall within the refractory period of the pacemaker and will not be sensed This may produce an erroneous reading Hence the maximum pacer rate must be set using the table below Waveform Refractory Maximum Width Period Pacer Rate msec msec ppm 200 lt 300 110 lt 400 90 100 lt 300 140 lt 400 110 40 25 10 lt 250 180 lt 300 170 lt 350 140 lt 400 110 2 9 7 Immunity Tests DELTA 3000_User_Manual_R2 doc 28 A Press the ESC key to return to the previous menu B Select Level 2 in the Main Pacer Test Menu C Press the Imm F2 key for the noise immunity test Immunity Menu Imm F2 Key Pressed Nio i s je I mjmjuj n i It y 6 0 H z SMOREN Fl F2 F3 F4 ESC D Press the 60Hz F1 key for a sine wave of 60Hz E Press the 50Hz F4
11. Menu Triangle Performance Waveform Selected i laau i alt l lr mip 1 m V ely ollie el I tig a 2 NIBI 1 2 1 S gt Z 0 gt DELTA 3000_User_Manual_R2 doc 24 Simulator Menu Pulse Performance Waveform Selected Sa lma Le a te lo Tr Almip 1 m V 2 10 ims e w ee Ara Seale allie 2 9 Testing Transthorasic Pacers The DELTA 3000 will test all Transthorasic pacemakers The brand of Transthorasic pacemaker to be tested must be selected through the menu system The DELTA 3000 provides a choice of utilizing either a fixed 50 Ohm test load or a built in variable test load for testing Transthorasic pacemakers Before performing any tests connect the pacemaker to be tested to either the 50 Ohm fixed test load or the variable test load input connectors There are three levels of soft key menus in the Main Pacer Test Menu Level 1 PPM Wdth Amp Ref Level 2 Type Aut Pri Aux Level 3 Sens Imm AV D Enr Press either the or key to move between the three soft key menu Levels 2 9 1 Selecting Pacemaker Manufacturer A Move the PACER INPUT SELECTOR switch on the side to the TRANS INPUT position B Turn the DELTA 3000 instrument on C Press the ZOLL F1 HP F2 MDE F3 or LF 12 F4 key to select a Zoll Hewlett Packard MDE or LifePak 12 model D Press either the or gt key to move to the next menu level and then press the LIFE key to select all other L
12. interval sensitivity and A V delay The pacer width measurement is combined with the PPM measurement For each parameter being measured 10 different test values are preprogrammed The user has the option of running all 10 of the tests using default values running one or more tests with user selected values or eliminating any of the tests User modified values may be saved for use in subsequent tests as long as the DELTA 3000 is not turned off The user can leave the modified value unsaved so that the original default values will be output during subsequent tests The test sequence continues until all of the parameters are tested The DELTA 3000 stores the measured values of each test performed in memory At the completion of the automatic test sequence the results may be sent to a printer or to a PC through the RS232 interface The set and DELTA 3000_User_Manual_R2 doc 35 measured values are compared If there is a deviation of more than 10 a comment to that effect is printed Note Test results are saved in the memory during an auto test sequence until the instrument is switched off This permits multiple copies of the results to be made on the printers and or PC Note Comprehensive Automatic Pacer Test instructions are being revised and will be supplied later 2 13 Printer Functions In the Level 3 Main Pacer Menu the Pri key will access various printer options Pe ite tie ag Ree asa a a S iar Pa ee e Ast PREG
13. key for a sine wave of 50Hz F The peak amplitude is displayed from O to 10 mV and may be increased or decreased The default setting is 5 7 mV Each time the gt key is pressed the amplitude increases by 0 7 mV Each time the key is pressed the amplitude decreases by 0 7 mV 2 9 8 Measuring Energy A Press the ESC key to return to the previous menu B Press key to go to Pacer Test Menu soft key Level 2 where energy may be selected C Press ENR F4 key for Energy measurement D Energy will be displayed on the top line of the display Energy will be measured continuously and updated while in the Energy menu Energy Measurement Menu e a D ae dle ls Sae DMAE I m im A Vi D Eln r E Press the ESC key to return to the previous Level 2 menu 2 10 Testing External Transvenous Pacers AV The DELTA 3000 will test both atrial and ventricular transvenous DELTA 3000_User_Manual_R2 doc 29 pacemakers Before performing any tests connect the pacemaker to be tested to either the ATR Atrial or VENT Ventricular A V INPUT connectors on the side panel A Move the Pacer Input Selector switch to the A V INPUT position B Turn the DELTA 3000 on C Press F1 Atrial or F4 Ventri to select pacer type D Perform the measurements in section 2 10 1 2 10 1 Measuring Pulse Parameters Rate Width and Amplitude A Press PPM Key F1 to measure the Rate B Press Wdth
14. 2 5 3 2 On an Oscilloscope An attenuated defibrillator discharge waveform can be displayed on an oscilloscope The amplitude reduction is 1000 1 volts A Connect an oscilloscope to the side panel output jack located on the left side B Set the sweep to 1 ms div and the vertical gain to 1 volt Discharge the defibrillator on the paddle contacts and observe the waveform on the oscilloscope C If it is a storage oscilloscope activate the storage mode before discharging energy to the DELTA 3000 2 5 4 Measuring Cardioversion Sync Time The DELTA 3000 measures the synchronization time cardioversion time of the defibrillator A simulated ECG waveform 60 BPM is output through the ECG jacks and the paddle contact plates During normal operation the defibrillator recognizes and responds to this trigger by discharging within a certain period of time The DELTA 3000 is capable of measuring the cardioversion sync time if the defibrillator discharge energy is within 250 ms of the peak of the R wave A Press CARD soft key F2 from the Main menu B A simulated ECG waveform 60BPM is output through the ECG leads and paddles C Select the source of the ECG waveform on your defibrillator Observe the ECG coming out of the DELTA 3000 on your defibrillator monitor Set the defibrillator to the synchronize mode Discharge the energy on the DELTA 3000 The Cardioversion sync time will be displayed If the Card
15. DELTA 3000 Defibrillator Transthoracic Atrial Ventricular Pacemaker Analyzer and built in 12 lead ECG Simulator DELTA 3000A Same as above except A V Pacemaker Analyzer is an option A A DELTA 3000 ip on F Y i s li i APEX 4 y gt J Operating Manual NETECH 110 Toledo Street Farmingdale NY 11735 Phone 631 531 0100 Fax 631 531 0101 http www Netech Or DELTA 3000 User Manual Rev2 Copyright Copyright 2002 by Netech Corporation All rights reserved No part of this publication may be reproduced or transmitted in any form other than for the purchaser s personal use without written permission from Netech Corporation Quality Assurance Netech is ISO 9001 2000 Certified This instrument was thoroughly tested and inspected according to Netech s ISO 9001 2000 quality standards and test procedures and found to meet those specifications when it was shipped from the factory Warranty Netech warrants the DELTA 3000 against defects in materials and workmanship for one year from the date of original purchase The standard warranty is extended for a second year if the instrument is returned to Netech for its recommended yearly recalibration During the warranty period we will repair or at our option replace at no charge a product that proves to be defective provided you return the product shipping prepaid to Netech Corporation This warranty does not apply if the
16. Key F2 to measure the Width C Press Amp Key F3 to measure the Amplitude Note The DELTA 3000 pacer will continuously measure the parameters and update the display with the new values Press F1 F2 or F3 to select the measurement priority The parameter selected is updated first followed by the others Rate Menu PPM F1 Key Pressed Vit Ir RERIALIS Vit Fi Rip AIS Vit li Rali lels E PIN Wid t h A mp RIRH 2 10 2 Measuring Refractory Periods A Select Level 1 in Pacer Test Main Menu B Press the Ref L4 key for the refractory period measurement C Press the Pace F1 key for paced refractory period measurement D Press the Sense F4 key for sensed refractory period measurement DELTA 3000_User_Manual_R2 doc 30 Refractory Menu F4 Key Pressed Rle ele lie lale lt lole Iy Tia ale la le le Sle lmls le F1 F2 F3 F4 ESC E STBY will flash on the top line of the display until the new refractory period is measured Note The pacemaker pulse rate must be limited to a maximum of 180 PPM during the refractory period measurement Each time a function is selected the measurement will start immediately and the STBY message will flash until the measurement is completed Press the ESC key at any time to cancel a measurement or to go back to a previous menu 2 10 3 Demand Sensitivity Tests A Select Level 2 in the Main Pacer Test Menu B Press the Sens F1 key for the demand sensitivity measuremen
17. c defibrillator and a ventricular fibrillation VFB or ventricular tachycardia waveform is selected the defibrillator will discharge The fully automatic defibrillator will warn the user that it is about to discharge Always heed the audible warnings of the defibrillator Use the recommended paddle adapters for connecting to the DELTA 3000 Do not touch the paddle or electrode contacts DELTA 3000_User_Manual_R2 doc 7 DELTA 3000 Model A Netech PN 650A Tran venous function is an option 1 3 Specifications 1 3 1 Defibrillator Tester Energy Measurement Load Resistance 50 Ohms 1 Non Inductive Range High 1000 Joules Resolution 1 Joule Range Low 2 100 Joules Resolution 0 1 Joules Maximum Voltage 5200 volts HI Range 1750 volts Low Range Maximum Current 100 Amp HI Range 32 Amps Low Range Accuracy HI Range 2 of the Reading 2 Joules LOW Range 2 of Reading 0 1 Joule Cardioversion Sync Time Range 0 250 ms Measurement From peak of R wave Accuracy 1 of Full Scale 1 ms Discharge Waveform Output Real Time Output 1000 0 5 Volts Stored Time expansion 200 1 repeated every 8 seconds 1 3 2 External Pacer Analyzer 1 3 2 1 Transthorasic Test Load 50 Ohms Fixed and Variable 100 to 1000 Ohms user selectable Current 1 to 200 mA Accuracy 5 5 mA Pulse Width 0 5 to 80 ms Accuracy 1 1 ms Refractory 20 500 ms Accuracy 2 or 10ms DELTA 3000_Us
18. d D A converters The 5V regulator incorporates low battery detection and when the battery voltage is lower than 6 5Volt it sends a low battery signal to the micro controller An external DC power jack is provided for use with the Netech AC adapter PN 302 When the AC Adapter is plugged into the DC jack the battery Voltage gets disconnected 4 4 6 Key Pad DELTA 3000_User_Manual_R2 doc 45 The Delta 3000 functions are controlled by the Menu and key interaction by the user The 8 momentary Keys are used to control the function of the instrument The Keys are directly interfaced with the Micro controller When a key is pressed the micro controller responds by changing the appropriate menu on the display 4 4 7 Display The display is a 20 Character 4 Line LCD that interfaces directly with the micro controller The contrast of the display is adjusted by a potentiometer 4 4 8 Micro Controller Board The Delta 3000 incorporates a 8XC55 based micro controller with 3 programmable timers and serial ports The frequency of the crystal oscillator is 11 0598Mhz 4 4 9 Memory The memory consists of 32 K internal ROM 32 K external ROM and 32 K RAM The internal and external PROM contains the software necessary to control the Delta 3000 The static RAM is used during program execution to hold buffers and stack operation 4 4 10 Serial Port The serial communications originates from the processor s asynchronous port 0 The communication
19. e The pacemaker type select switch should be in the position marked A V INPUT to make atrial and ventricular measurements in invasive pacemakers and in the position marked TRANS INPUT to make measurements in Transthorasic pacemakers 2 11 Printing Pacer Measurements Pacer test measurement results may be printed with or without a header 2 11 1 Printing Without a Header A Press the PRN key on the Keypad to print the measured test data from the DELTA 3000 in the Pacer Test mode B The DELTA 3000 will send data to the printer port each time the display updates with current parameter measurements C Press the PRN key again to stop the continuous printing of parameter measurements 2 11 2 Printing a Header A Press the ESC key to return to the Level 2 Pacer Menu B Press the Pri F3 key C Press either the Prtr Fl key or PrH F3 key to print the header DELTA 3000_User_Manual_R2 doc 34 NETECH PACEMAKER TESTER DELTA 3000 Date er Control No par Model No __ s Serial No Manf __ Hospital BMET Remarks _ a Pass__ Fail _ VENTRICULAR TESTS ATRIAL TESTS TRANSTHORACIC TESTS D Return to the Pacer measurement program to perform tests 2 12 Automatic Pacer Testing In the Automatic Pacer Testing Mode measurements are performed semi automatically on seven parameters pacer rate pacer width pacer amplitude pacing refractory interval sensing refractory
20. e Delta 3000 makes several measurements of Transthorasic and transvenous A V pacemakers 1 1 2 1 Transthorasic Pacers Test load 50 Ohms or user selectable load from 100 to 1000 Ohms Measures Peak current pulse width pulse rate paced refractory period sensed refractory period and pulse energy 1 1 2 2 Transvenous Pacers This feature is available only in Full version DELTA 3000_User_Manual_R2 doc 6 Measures Peak current pulse width pulse rate paced refractory period sensed refractory period immunity test 50Hz 60 Hz A V interval and pulse energy Measures the current drain ON OFF of the pacemaker using the optional adapter PN xxxxx 1 1 3 ECG Arrhythmia Simulator Functions The Delta 3000 simulates a normal sinus rhythm ECG waveform along with several arrhythmias It also generates sine square triangle and pulse performance waveforms 1 2 Safety Considerations Before using the DELTA 3000 the operator must follow the safety precautions listed in this manual 1 2 1 Defibrillators Defibrillators deliver high voltage shocks to a patient in order to stop a heart attack The defibrillator discharge pulse is potentially dangerous 1 2 2 Automatic Defibrillators Automatic defibrillators discharge automatically when they detect a life threatening heart condition which requires a shock The DELTA 3000 simulates a vide variety of arrhythmia waveforms When the instrument is connected to an automati
21. er_Manual_R2 doc 8 1 3 2 2 Transvenous Atrial and Ventricular Option in DELAT 3000A Test Load 500 Ohms 1 Current 1 to 25 mA Accuracy 5 5 mA Pulse Rate 30 to 800 ppm Pulse Width 0 5 to 80 ms Accuracy 1 1 ms Refractory 20 500 ms Accuracy 2 or 10ms Immunity Test 50 60 Hz 1 3 3 ECG Arrhythmia Simulator ECG Waveform Normal Sinus Rhythm Rates 30 60 80 120 180 240 300 BPM Performance Waveforms Sine Square Triangle and Pulse Rates 0 5 1 2 10 15 20 25 40 Hz Arrhythmia Waveforms VFBC VFBF VTAC AFIB PVC PVC1 PVC2 BGY RBB AFIB AFT PVCM Amplitudes 0 5 1 1 5 2 2 5 3 mv Waveform Output Low Level 12 Lead ECG and Paddle Hi Level Output Jacks Accuracy Rate 1 Amplitude 2 LA LL 10 Paddles 1 3 4 RS 232 Output A computer interface is available to print test results or to save them on a PC The test results can be saved directly to a Palm Pilot using Notch s optional palm software 1 3 5 Power Requirements Two 9 Volt Alkaline Batteries or AC adapter 1 3 6 Physical Characteristics DELTA 3000_User_Manual_R2 doc 9 1 3 6 1 Dimensions 10 x 11 x 2 25 in 25 4 x 27 9 x 5 7 cm 1 3 6 2 Weight 4 Ibs 1 9 Kg 1 3 7 Environmental Operating Specifications Storage Temperature 25 to 50 C Operating temperature 15 to 40 C Maximum Humidity 95 Relative Humidity 1 4 Accessories 1 4 1 Standard Accessories AC Adap
22. ifePak models or the Others key to select all other manufacturers DELTA 3000_User_Manual_R2 doc 25 2 9 2 Selecting 50 Ohm Fixed Test Load A Move the Mode switch on the DELTA 3000 to PACER B Move the pacer input selector switch on the side panel to the TRANS INPUT position C Connect the transcutaneous pacer to the TRANS INPUT fixed 50 OHMS input connectors see the next section for variable loads D Turn the DELTA 3000 on E Turn the pacer on F Select the desired pacer manufacturer and perform the tests 2 9 3 Selecting Variable Test Loads A Move the Mode switch on the DELTA 3000 to PACER B Move the pacer input selector switch on the side panel to the TRANS INPUT position C Connect the transcutaneous pacer to the VAR LOAD input connectors D Rotate the LOAD SELECTOR switch to the desired test load for the measurement E Turn the DELTA 3000 on F Turn the pacer on G Select the desired pacer manufacturer and perform the tests Note Turn the pacemaker off before selecting another test load 2 9 4 Measuring Pulse Parameters Rate Width and Amplitude A Press PPM Key F1 to measure the Rate B Press Wdth Key F2 to measure the Width C Press Amp Key F3 to measure the Amplitude Note The DELTA 3000 pacer will continuously measure the parameters and update the display with the new values Pressing F1 F2 or F3 will select the measurement priority The parameter selected wil
23. ioversion time is greater than 250 ms of the peak of the R wave the DELTA 3000 will display over range Q mmg DELTA 3000_User_Manual_R2 doc 18 Cardioversion Test Menu F Key Pressed Cardio Time Ca S cal ie Heal 10 0 0 m s Bme lr eye 000g Tio wii le s E C G 6 0 b pm ESEE C A R D A E D S I M Fl F2 F3 F4 2 6 Testing Semi Automatic or Automatic Defibrillators Refer to the defibrillator manufacturer s service manual for specific device inspection requirements Observe all safety precautions For fully automatic defibrillators use the correct paddle adapter for the defibrillator under test The paddle contact plates must not be exposed during discharge 2 6 1 Selecting Waveforms A Press the AED F3 soft key in the Defib main menu Energy values will be indicated on the top line of the display Possible Arrhythmia F1 selections and ECG F4 selections will be displayed on the bottom line of the display B Select the desired Arrhythmia waveform by pressing F1 for the list of advisory shock waveforms of the defibrillator The waveform selected will be indicated on the third line of the display 2 6 2 Measuring Energy A Connect the paddle adapters to the circular contact plates for fully automatic defibrillators or place the paddles firmly on the paddle contacts for semi automatic defibrillators with paddles and discharge the defibrillator B The DELTA 3000 will display the measured ene
24. isplay is blank be low or the display battery or use AC contrast is set low adapter When the unit is This happens when there Turn Unit off and switched from Pacer to is a Memory corruption then turn it On Defib the display remain in Pacer Mode When Defib is fired into This occurs when hi EMI Turn Unit off and the unit the display fields produced by then turn it On freezes The Defib The display shows non Memory corruption Turn Unit off and ASCI Characters then turn it On Low battery warning Battery is low Replace battery DELTA 3000_User_Manual_R2 doc 48 Appendix A DELTA 3000_User_Manual_R2 doc Section 7 49
25. ix horizontal space LF Line feed FF Form feed CR Carriage return DW Double width print DCLR Reset double width print HW Condensed print HCLR Reset condensed print EMP Emphasize print ECLR Reset emphasize print DST Double strike CLR Reset double strike MarR Right margin set BS Back space RST Reset to power on mode MarL Left margin set PRT Print 16 characters DELTA 3000_User_Manual_R2 doc Serial Interface Section 3 3 1 Introduction DELTA 3000 can be interfaced to a PC using serial port The out puts are sent to PC or printer in ASCI form Many generic software interfaces are available Due to rapid changes in the PC hardware and software NETECH is unable to recommend any particular product at this time The easiest way to get the test results to a PC with the serial port is by using Hyper Terminal communication It is not the scope of this manual to describe the Hyper Terminal Follow the operating system manual to setup the Hyper terminal The serial port settings are listed below 3 2 Serial Port Set Up Procedure A Set up the Hyper Terminal in the PC B Connect DELTA 3000 to the PC using a serial port cable C Set Up 1 Baud rate 9600 2 Data bits 8 bit 3 Parity None 4 Stop bits 1 5 Flow control None 3 3 Receiving and Saving Data A Follow step 3 1 3 2 for receiving data using Hyper Terminal B Press the PRN key on the DELTA 3000 C The data will be sent to the Hyper Terminal D Fill up
26. l be updated first followed by the others DELTA 3000_User_Manual_R2 doc 26 Pulse Parameter Measurements Vai Rialti els Vit Wwidjit h Vitir A m p l f P P M Wditih Amp Reale ck 2 9 5 Measuring Refractory Periods A Select Level 1 in Pacer Test Main Menu B Press the Ref L4 key for the refractory period measurement Refractory Menu Ref F4 Key Pressed Rae on ial a eles Paes E Ti mle lalele Sle la ls le F1 F2 F3 F4 ESC C Press the Pace F1 key for paced refractory period measurement D Press the Sense F4 key for sensed refractory period measurement E STBY will flash on the top line of the display until the new refractory period is measured Note Some Transthorasic pacemakers require a separate ECG input during measurement of the refractory period The banana jacks marked ATR should be used for this purpose A 100 mV 40msec square wave is output at the ATR jacks and must be connected to the EKG input leads of the pacemaker before the measurement is made Note The pacemaker pulse rate must be limited to a maximum of 180 PPM during the refractory period measurement Each time a function is selected the measurement will start instantaneously and the STBY message is flashed until the measurement is completed Press the ESC key at any time to cancel the measurement or go back to the previous menu DELTA 3000_User_Manual_R2 doc 27 2 9 6 Demand Sensitivity Tests A B Select Level 2 in the
27. lm Pilot 2 4 Menu Structure The DELTA 3000 is easily operated via a menu system utilizing an eight key keypad located on the front of the instrument below the display Menus appear on the display above the four keys labeled F1 F2 F3 and F4 The four lower keys are labeled lt lt ESC PRN and The instrument is used by following the instructions on the display and pressing the appropriate key The ESC key has two different functions In some menus it will change the display to the previous menu and in some situations it confirms the menu selection The PRN key activates an optional printer The arrow keys lt lt and move the display forward or backward within a group of possible selections DELTA 3000_User_Manual_R2 doc 13 The following are samples of main menu displays Defibrillator Power Up Initialization Menu Displayed for 3 Seconds Dees FU ets ka 3 0 0 0 D ke ft 2 bee eS la am Vle ir D la O lr IG Defibrillator Main Menu Automatically Displayed After Power Up Edmee ae OOE OO Jonkun eS eines actee Ke iss Viojl it s PRS cae ke Me Amp aa stip C A RD A E D SIM F1 F2 F3 F4 Defibrillator Menu FT Key Pressed Energy Range Low Bme e a yR IO OA ou H e k e e k Vio tE es Pakem kE Amp E L O C A RD A E D SII iM F1 F2 F3 F4 Cardioversion Test Menu F2 Key Pressed Cardio Time Cla ele i e 10 0 0 m S Bale lr lies
28. maker off before selecting a test load DELTA 3000_User_Manual_R2 doc 5 GENERAL OVERVIEW Section 1 1 1 Introduction The DELTA 3000 is a biomedical test instrument that combines the complete testing functions of a defibrillator tester a pacemaker analyzer and a 12 lead ECG Arrhythmia simulator into one compact instrument The Delta 3000 is designed to accurately measure the output parameters of defibrillators and external pacemakers including both Transthorasic and transcutaneous devices It simulates a wide variety of arrhythmia waveforms for testing automatic defibrillators and ECG equipment It is compact lightweight and rugged The Delta 3000 is operated via easy to use menus displayed on its large display It may be battery or AC operated 1 1 1 Defibrillator Test Functions The Delta 3000 measures the delivered energy of a defibrillator in Joules watt seconds The built in test load 50 Ohms simulates the human body s resistance The energy is measured in two ranges 0 100 Joules LOW or 0 1000 Joules HI The Peak Voltage and Current are displayed simultaneously The cardioversion delay time of a defibrillator in its synchronized mode is measured in milliseconds from the R wave peak of the simulated ECG waveform The defibrillator pulse waveform can be replayed via the ECG jacks on the side panel or through the paddles to print on a recorder or view on an oscilloscope 1 1 2 Pacemaker Test Functions Th
29. ntial Input Amplifier The Input amplifier performs a differential voltage measurement across the input load The output of the amplifier is fed to the ADC and the scope output amplifier with a gain of 2 The discharge waveform is sensed by the ADC and sampled at the rate of 1000 times per second and saved in the memory The captured waveform is time scaled to 1 200 and output through the D A converter The stored waveform can be observed through the paddles and the ECG leads 4 4 3 Pacemaker Input Loads Pacer inputs are selected via the function selector There are two separate input loads for Atrial and Ventricular pacer inputs The Transthoracic pacer inputs are connected to a fixed 50 Ohm load or a variable load The multiplexer selects the appropriate input and feeds it to a differential amplifier which is then fed to the ADC via the function selector switch 4 4 4 ECG Outputs ECG and Arrhythmia waveforms are generated by the DAC and are available at the ECG leads the High Level Output Jacks and the Defib paddle contacts 4 4 5 Power Supplies The Delta 3000 is powered by two 9 Volt Alkaline batteries The volt is converted into 5V 5AV by low dropout linear regulators The SAV is generated by a charge pump regulator The 5AV and 5AV is used to power the op amps and 5V is used for the digital circuits A precision 2 5000 Voltage reference is generated from the 9 Volt source The 2 5000 reference voltage is used for the ADC an
30. press the PC F2 key for the results to be stored in the given file name The file can be printed out or edited using any text editor C Press the PrH F3 key to print a header D Press the NO F4 key to return to the Level 3 Menu 2 14 Auxiliary Functions The DELTA 3000 has four Auxiliary Operating Functions Test Calibration Print Format Pacemaker Battery Test Press the Aux F4 Key in the Level 3 Main Pacer Menu lt le TE lalele hE Tle ls lt l I gt Tly p fe Alu it Rg i Aju x F1 F2 F3 F4 DELTA 3000_User_Manual_R2 doc 37 Auxiliary Functions Alu x Eula dle lt ii doln Ig Tigi Gla i Pe Ee cs Bla le III 2 14 1 AV Pacer Test Function In the AV Pacer Test Mode the DELTA 3000 inputs a DC output voltage of 100 mill volts 5 and displays both the input and the measured values A Select the AV Pacer Mode B Press the Tst F1 key C Place the Pacer Select Switch in the AV Input position D Disconnect the input to the DELTA 3000 E Press the ESC key AV Pacer Test Sle Il le le lt le d 9 IS l ls lmiy Makemo A LIO IO I M lm ly Note If the measured reading is not within 5 of the selected reading the DELTA 3000 should be recalibrated 2 14 2 Transcutaneous Pacer Test Function In the Transcutaneous Pacer Test Mode the DELTA 3000 outputs a voltage of 10 millivolts 0 5 This voltage may be checked with a Voltmeter connected to the Vent jacks of the A V Input connectors
31. product has been damaged by accident or misuse or as the result of service or modification by other than Netech Corporation or if its serial number is defaced or removed Netech reserves the right to discontinue the DELTA 3000 at any time and change its specifications price or design without notice and without incurring any obligation Netech guarantees availability of service parts for 5 years after the manufacture of the unit is discontinued The warranty is void if you elect to have the unit serviced and or calibrated by someone other than Netech The purchaser assumes all liability for any damages or bodily injury which may result from the use or misuse of the unit by the purchaser his employees agents or customers In no event shall Netech Corporation be liable for consequential damages Trademarks Netech and DELTA 3000 are trademarks of Netech Corporation Any other trademark names used in this manual are only for editorial purposes and the benefit of the respective trademark owner with no intention of improperly using that trademark DELTA 3000_User_Manual_R2 doc 2 Table of Contents 1 General Overview 1 1 1 2 1 3 1 4 Introduction _ Safety Considerations Specifications AccessorieS 2 Operating Instructions 2 1 2 2 2 3 2 4 2 5 2 6 2 7
32. rg or from the Netech Customer Service Department DELTA 3000_User_Manual_R2 doc 11 2 2 Instrument Familiarity Before proceeding to use the DELTA 3000 make sure you read this manual and become familiar with the functions all of the antrols and the menu operation DELTA 3000 1 Defib Paddle Contacts 8 Function Keys Apex R Sternum L 9 Power Switch 2 Serial Port 10 DC Power Input 3 ECG Output 10 Lead 11 A V Pacer Input 4 ECG Hi Level 12 Pacer Input Selector 5 Real Time Output 13 Transcutaneous Input 6 Defib Pacer Selector 14 Transcutaneous Input Load Selector 7 LCD Display DELTA 3000_User_Manual_R2 doc 12 2 3 Power Up and Initialization The DELTA 3000 is battery powered The power On Off switch is located on the top right hand side of the instrument The function selector DEFIB PACER switch is located on the top left hand side of the instrument When the instrument is turned on the function selected and the version and revision level of the software are displayed for about 5 seconds 2 3 1 RS 232 Setup The Delta 3000 can be connected to a printer or a PC via the RS 232C SERIAL PORT located on the side of the instrument The default settings for the serial communication are Baud Rate 9600 Data Bits 8 Parity None Stop Bit 1 These settings must be the same for the PC or the Printer To retrieve the data into a Palm Pilot use the optional interface cable for the Pa
33. rgy DELTA 3000_User_Manual_R2 doc 19 Defibrillator Main Menu F3 Key Pressed AED Selection Bwmle le le es aed ke Cant T ke wd ie g ee ea ke Vio l t s Nae eel Pal calle Amp E H I C A RD A E D S I iM Fl F2 F3 F4 AED Test Menu FT Key Pressed for Arrhythmia Selection Bia telk Ie yek OPO Oe KO T tolul les A RR T H E C G Fl F2 F3 F4 AED Arrhythmia Selection Menu F1 Key Pressed for VFB Course Ee lelr le y k 0000 Wio lwl ie ss Wikasibvae Hee VAERE Cio a E Ss e Vo Bare ViF B F VIHAT ARE J B F1 F2 F3 F4 2 7 Printing Defibrillator Measurement Data A Press the PRN key on the Keypad to print the measured test data from the DELTA 3000 in the defibrillator mode B The first time the PRN key is pressed the header shown below in Fig A will be printed followed by the measured test data in Fig B DELTA 3000_User_Manual_R2 doc 20 NETECH DEFIB TESTER DELTA 3000 Date Lo Control No _ Model No _ Serial No Manf Hospital _ BMET Remarks S Pass _____ Fail Energy set __ Energy 103 Joules Peak Voltage 1739 Volts Peak Current 34 Amp Fig A Fig B C If the PRN key is pressed when the instrument is in the defibrillator Cardioversion mode the measured data will be printed as shown in Fig C Energy set _ s Cardio Time 31 mS Energy 103 Joules Peak Voltage 1739 Volts Peak Current 34 Amp DELTA 3000_User_Manual_R2 doc Fig
34. rhythmia Waveforms DELTA 3000_User_Manual_R2 doc 22 A Press the ARRTH F2 key to view the available arrhythmias The default arrhythmia is VFB course and the amplitude is set at 1 millivolt B The and keys to advance through the arrhythmia selection menu C Press the appropriate key to select an arrhythmia waveform D The selected arrhythmia will be displayed on the third line of the simulator menu display 2 8 3 Arrhythmia Waveform Definitions VFBC VFBF VTAC AFIB RBB PAC PVC PVC1 PVC2 BGY AFT Ventricular Fibrillation Course the amplitude of the waveform is equal to the display Ventricular Fibrillation Fine the amplitude of the waveform is one half the value of the display Ventricular Tachycardia Atrial Fibrillation Right Bundle Branch Block Premature Atrial Contraction Premature Ventricular Contraction one PVC followed by 10 normal beats Premature Ventricular Contraction one PVC followed by 7 normal beats Premature Ventricular Contraction run of 5 PVC s followed by 9 normal beats Bigeminy Atrial Flutter PVCM Premature Ventricular Contraction manually placed each time 2 8 4 the PVCM key is pressed NSR rate is 60 bpm Amplitude Selection A Press the AMPL F4 key in the Simulator Main Menu to select the amplitude B The lt lt and keys to advance through the amplitude selection menu There are eight choices 0 5 1 1 5 2 2 5 3
35. s protocol is user configurable 4 4 11 Analog to Digital Conversion The input signals from the 50 Ohm load for the defib and the pacer input signals are routed through the selector switch to the ADC input The ADC is a bipolar 13 bit 12 bit plus sign successive approximation type with an auto calibration feature The reference voltage is set at 2 5000 Volts by the precision reference 4 4 12 Digital to Analog Conversion The D A converter is a dual 8 bit type The reference of the first DAC is set at 2 5000 Volts precision reference The waveform is generated by the second DAC whose reference voltage is controlled by the first ADC for scaling purposes amplitude selections The output signal is then offset and inverted by the Op amp to form a symmetrical signal with respect to ground The signal is further scaled and buffered for the high level output The single ended signal is amplified differentially and attenuated to 1mV default amplitude and fed to DELTA 3000_User_Manual_R2 doc 46 the 50 Ohm load This signal is sensed by the automatic defib to trigger the output pulse DELTA 3000_User_Manual_R2 doc 47 TROUBLESHOOTING Section 5 5 1 Troubleshooting Chart The following chart is provided for basic troubleshooting Problems other than those listed should be addressed to the Netech Technical Service Department at 631 531 0100 Description Cause Action On Power up the The Battery Voltage may Replace with new D
36. setting is 54 3 mV Each time the gt key is pressed the amplitude increases by 6 8 mV Each time the key is pressed the amplitude decreases by 6 8 mV 2 10 5 Measuring AV Interval A Press the ESC key to return to the Level 2 Main Pacer Test Menu DELTA 3000_User_Manual_R2 doc 32 B Press the AV D F3 key from the main menu for A V Delay measurements AV Interval Menu AV D F3 Key Pressed A V Dlie H la ly Sahel cive ales I mim A Vi D EAMA Note The select switch must be in the A V position and inputs must be connected to both the ATR and VENT input jacks on the DELTA 3000 The amplitude values for both atrial and ventricular output on the pacemaker must be set to 0 1mA or higher 2 10 6 Measuring Energy A Press the ESC key to return to the Level 2 Main Pacer Test Menu B Press the Enr F4 key for Energy measurements DELTA 3000_User_Manual_R2 doc 33 Energy Measurement Menu Enr F4 Key Pressed V t f B laler lels SPETS I mm AIV ID Ja i i 2 10 7 Pacemaker Type Selection During measurements the atrial and ventricular inputs may be changed or a different pacemaker may be tested This is done using the Type function key in the Pacer Test Main Menu A Press the Esc Key to back up one menu B Press the lt or to move to Level 2 Main Pacer Menu C Press the Type F1 Key D Press the Atrial F1 or Ventri F4 to make chang
37. t Sensitivity Menu Sens F1 Key Pressed Sle als lt ly k lyla ls Ti Siq ir 4 0 mS F1 F2 F3 F4 ESC A Press the F1 key to select a square Sqr triangle Tri or SSQ waveform B The default sensitivity is 40 milliseconds Press the F2 key to select a different sensitivity 100 200 10 25 and 40 msec are available C STBY will flash on the top line until a measurement is made During the sensitivity measurement the pacemaker pulse rate selection depends on the waveform and the width selected For certain widths and DELTA 3000_User_Manual_R2 doc 31 pacer rates the waveform may fall within the refractory period of the pacemaker and will not be sensed This may produce an erroneous reading Hence the maximum pacer rate must be set using the table below Waveform Refractory Maximum Width Period Pacer Rate msec msec ppm 200 lt 300 110 lt 400 90 100 lt 300 140 lt 400 110 40 25 10 lt 250 180 lt 300 170 lt 350 140 lt 400 110 2 10 4 Immunity Tests A Press the ESC key to return to the Level 2 Main Pacer Test Menu B Press the Imm F2 key for the noise immunity test Immunity Menu Imm F2 Key Pressed Nile li ls le Maaa a a e ly 6 OJH z 3 0 H z Fl F2 F3 F4 ESC C Press the 60Hz F1 key for a sine wave of 60Hz D Press the 50Hz F4 key for a sine wave of 50Hz E The peak amplitude is displayed from O to 101 9 mV and may be increased or decreased The default
38. ter 110 220 VAC Operating Manual Service Manual 302 110 220 VAC 650 USER MANUAL 650 SERV MANUAL Carrying Case 650 CASE Universal Paddle Adapters set of 2 653 Un terminated Banana Plug set of 2 6383 02 ECG Snap Adapters set of 10 1000 1 4 2 Optional Accessories Serial Printer Interface Cable 903 AED Paddle Adapters HP 651 HP Zoll 651 Zoll Physio Control 651 Physio Marquette 651 MARQ Laerdhal 651 LAED Universal A V Pacer Adapter Cable 652 Zoll Call for Part Number HP Call for Part Number Physio Control Call for Part Number For all other models DELTA 3000_User_Manual_R2 doc Please contact Netech 10 OPERATING INSTRUCTIONS Section 2 2 1 Getting Started Before unpacking the DELTA 3000 inspect the shipping box for any visual damage If damage is found do not unpack the unit and immediately notify the shipping carrier If no damage is found to the shipping box open the box and perform a visual inspection of the Delta 3000 If any damage to the unit is observed please contact Netech Customer Service The Netech warranty statement is listed in the warranty section of this manual When shipping an instrument to Netech for repair or calibration make sure that the instrument is properly packed A completed the Service Return Form must be included with the returned instrument to ensure the timely repair and return of your instrument The Service Return Form may be obtained at our web site http www Netech o
39. the Blank fields as shown in Fig A below E Set the test values for the instrument to be tested see Fig B above F Save the file DELTA 3000_User_Manual_R2 doc 41 NETECH DEFIB TESTER DELTA 3000 Date Control No Model No Serial No Manf Hospital BMET Remarks Pass E Fail aay Energy set Ean Energy 103 Joules Peak Voltage 1739 Volts Peak Current 34 Amp DELTA 3000_User_Manual_R2 doc Fig A Fig B 42 Theory of Operation Section 4 4 1 Introduction The DELTA 3000 Defibrillator Tester Pacer Analyzer ECG Simulator is a precision multi purpose analyzer that performs tests on all defibrillators and all pacemakers It is a microcontroller based design and utilizes sophisticated algorithms to control all system activities 4 2 Defibrillator Output Measurement The energy of the Defibrillator that is discharged into the 50 Ohm load of the Delta 3000 is calculated using the formula Energy E V t R Where V is the discharge Voltage across the load resistor R and t is the duration of the waveform in seconds The Delta 3000 measures the instantaneous voltage attenuated by a factor of 2000 1 1 every 105 microseconds for a duration of 65 milliseconds The Microcontroller computes the energy by summing up the squared voltages multiplied by the time and divides the product by 50 load resistance The peak voltage measurement is performed by obtaining the largest val
40. ue of the samples after a pulse measurement is recorded The peak current is computed from the peak voltage divided by the load resistance of 50 Ohms 4 3 Pacer Output Measurements The pacer output measurement consists of peak voltage peak current pulse width and pulse rate Typically the waveform output is a trapezoidal shape and the voltage and current measurements will be taken at the peak As shown below Peak Voltage Current Pulse Width ms a Rate PPM p 4 3 1 Pulsed Refractory Period DELTA 3000_User_Manual_R2 doc 43 The pulsed refractory period is the time after a pulse is delivered from the pacemaker during which the pacer will not detect cardiac activity 4 3 2 Sensed Refractory Period The sensed refractory period is the period after the pacemaker senses cardiac activity during which it will not detect further cardiac activity 4 4 Circuit Block Descriptions Display Key Pad 20x 4 Serial Port Micro Controller PROM 32K RAM 32K O A U M T U s P Diff Output Function X R U Amp Selector F T I M N 7 P Defib Input Differential U Load Input Amp T Power Supplies 9 Volt 5 5AV 5AV 9 Volt Battery 2 5000 Vref Adapter Block Diagram DELTA 3000_User_Manual_R2 doc 4 4 1 Defibrillator Input Load The input load consists of two 25 Ohm 95 Watt 1 wire wound resistors that simulate the impedance of the human thorax under high voltage conditions 4 4 2 Differe
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