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CONTEC MEDICAL SYSTEMS EKG6012 User Manual

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Please read the User Manual carefully before using this product. The operating
procedures specified in this User Manual should be followed strictly. This manual describes
in detail the operation steps which must be noted, the procedures which may result in
abnormality, and possible damage to the product or users. Refer to following chapters for details.
Failed to follow the User Manual may cause measuring abnormality, device damage or personal
injury. The manufacturer is NOT responsible for the safety, reliability and performance issues of
such results due to user's negligence of this user manual for using, maintenance or storage. The
free service s and repairs do not cover such faults either.
The content in this user manual complies with real product. For software upgrade and some
modifications, the content in this user manual is subject to change without prior notice, and we
sincerely apologize for that.
Attentions
Before using this product, the safety and effectiveness described in the following shall
be considered:
➢
Type of protection against electric shock: class I (AC power supply), internal powered
equipment (power supplied by battery)
➢
Degree of protection against electric shock: type CF, defibrillation-proof applied part
➢
Working mode: continuous running equipment
➢
Enclosure protection class: IPX0
➢
Measurement results shall be described by professional doctor combined with clinical
symptoms.
➢
The using reliability depends on whether the operation guide and maintenance instructions
in this user manual is followed.
➢
Service life: 5 years
➢
Date of manufacture: see the label
➢
Contraindications: none
Warning: To ensure the device safety and effectiveness, please use the company
recommended accessories. The maintenance and repair of the device should be done by
professional personal specified by the company. It is forbidden to refit the device.
Responsibility of the operator
➢
The device must be operated by a professionally trained medical staff, and kept by a
special person.
➢
The operator should read the User Manual carefully before use, and strictly follow the
operating procedure described in the User Manual.
➢
The safety requirements have been fully considered in product designing, but the operator
can not ignore the observation of the patient and device.
➢
The operator is responsible for providing the information of product use to the company.
Responsibility of the company
➢
The company supplies qualified products to user in accordance with enterprise standard.
Preface
I
EKG6012

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Summary of Contents for CONTEC MEDICAL SYSTEMS EKG6012

  • Page 1 EKG6012 Preface Please read the User Manual carefully before using this product. The operating procedures specified in this User Manual should be followed strictly. This manual describes in detail the operation steps which must be noted, the procedures which may result in abnormality, and possible damage to the product or users.
  • Page 2 EKG6012 ➢ The company installs and debugs the equipment and trains the physicians by contract. ➢ The company performs device repair in warranty period (a year) and maintenance service after warranty period. ➢ The company responds timely to the user's request.
  • Page 3 EKG6012 Statement Our company owns all rights to this unpublished work and intends to maintain it as confidential information. This user manual is used only for reference of operation, maintenance, or repair of our device. No part of this can be disseminated to others. And our company takes no responsibilities for any consequences and liabilities caused by using this user manual for other purposes.

  • Page 4: Table Of Contents

    EKG6012 Contents Chapter1 Overview ....................... 1 1.1 Overview ......................1 1.2 Intended use ......................1 1.3 Main technical specifications ................1 1.4 Main Characteristics ..................... 2 1.5 Software overview ....................3 Chapter2 Safety Precautions ....................4 Chapter3 Warranty ........................ 7 Chapter4 Working Principle and Structural Characteristics ..........
  • Page 5 EKG6012 6.4.2 Limb electrodes ..................16 6.4.3 Colors of lead cables ................16 6.4.4 Lead method and system ............... 17 6.4.5 Lead-off and overload indication ............17 Chapter 7 Operation Instructions and Parameter Setting ............. 18 7.1 Main Interface..................... 18 7.2 Sampling interface ....................
  • Page 6 EKG6012 9.8 Others ......................... 36 Chapter 10 Packing List and Accessories................38 10.1 Accompanying accessories ................38 10.2 Notes ......................... 38 Appendix I ECG Automated Measurement&Interpretation Guide ........39 1. Preface ........................39 2. Automated measurement parameters and Automated interpretation items.... 39 2.1 Measurement parameters ................
  • Page 7 EKG6012 5.1.3.1 Accuracy of amplitude measurements ..........58 5.1.3.2 Accuracy of absolute interval and wave duration measurements ..58 5.1.3.3 Accuracy of interval measurements on biological ECGs ....58 5.1.3.4 Stability of measurements against NOISE .......... 58 5.2 Verification of interpretation function ............59 5.2.1 Verification process ................

  • Page 8: Chapter1 Overview

    EKG6012 Chapter1 Overview 1.1 Overview This product is a kind of electrocardiograph, which is able to sample 12 leads ECG signals simultaneously and print out the ECG waveform with thermal printing system. Its functions are as follows: recording and displaying ECG waveform in auto/manual mode; measuring ECG waveform parameters automatically, and automatic analysis and diagnosis;...

  • Page 9: Main Characteristics

    EKG6012 0.25 100Hz~150Hz, Sine wave +10 %, -30 % 150 Hz ~ 500 Hz, Sine wave +10 %, -100 % ≤1Hz,200ms, Triangle wave +0 %, -10 % relative to 10Hz relative to 200 ms 1.3.7 Time constant: ≥3.2s 1.3.8 CMRR: >105 dB 1.3.9 Filter: power frequency(AC50/60 Hz), myoelectricity(25 Hz/35 Hz (-3 dB)), baseline drift...

  • Page 10: Software Overview

    EKG6012 filter, baseline filter and EMG filter on ECG signals, in order to get high-quality ECGs. 1.4.3 Display of 3/6/12-lead ECG on one screen, and print mode, sensitivity, paper speed, filter state and other information, which facilitates comparative diagnosis. 1.4.4 The device can be powered either by AC or DC(can adapt to 50/60Hz AC frequency), with built-in rechargeable lithium battery and charging circuit, perfect battery overcurrent and overvoltage protection circuit.

  • Page 11: Chapter2 Safety Precautions

    EKG6012 Chapter2 Safety Precautions 2.1 Ensure that the device is placed on a flat level worktable. Avoid strong vibration or impact when moving it. 2.2 When working with AC power, the power cord must be 3-core, the frequency and voltage value of the AC power source must match the identification on the manual and have sufficient capacity.
  • Page 12 EKG6012 2.15 Notes related to EMC The device complies with the safety standards for medical electrical equipment or system electromagnetic compatibility in IEC60601-1-2. Electromagnetic environments exceeding the IEC60601-1-2. standard may cause harmful interference to the device or prevent the device from performing its intended function or degrade its performance.
  • Page 13 EKG6012 ECG waveform without reflecting all the patient’s status. The results of the analysis may sometimes not comply with the doctor’s diagnosis. Therefore, the final conclusion needs to be comprehensively analyzed by doctors in combination with analysis results, patient clinical...

  • Page 14: Chapter3 Warranty

    EKG6012 Chapter3 Warranty 3.1 In normal use, under strict observance of user manual and operation notes, in case of failure, please contact with our customer service department. Our company has the sales record and customer archives for each device. The customer has one year free warranty service from the date of shipping according to the following conditions.

  • Page 15: Chapter4 Working Principle And Structural Characteristics

    EKG6012 Chapter4 Working Principle and Structural Characteristics 4.1 Working principle and its block diagram 4.1.1 The power supply unit Principle of power supply After the AC power supply enters the switching power supply, it is converted to 12V DC voltage and supplied to the DC-DC power board, it also provides constant voltage current limiting charging for the rechargeable lithium battery in the device through the DC-DC circuit, and generates +5V and +3.3V voltage through the power conversion to supply power to the...

  • Page 16: Name Of Each Part And Its Function

    EKG6012 （2）Principle block diagram is shown in Figure4-1. Signal acquisition Button system system Control system Display system Printing system Power module Figure 4-1 Block diagram of control unit 4.2 Name of each part and its function 4.2.1 Front view Figure 4-2 Front view 1.

  • Page 17: Side View

    EKG6012 4.2.2 Side view Figure 4-3 Side view 1. Input socket: connect with AC power cord. 2. Equipotential terminal: Connect with the potential equalization conductor. 3. Lead cable interface: Connect with lead cables. 4. USB interface: Communicate with the computer. The ECG data can be transmitted to a computer, by using the computer, many functions can be achieved, such as archiving, managing, and analyzing ECG data, which facilitates clinical research, organization teaching and training.

  • Page 18: Symbols

    EKG6012 Green indicates that the AC power supply is used. At this time, there is no battery in the device or the battery is full. Red and green two colors indicate that the battery is being charged. 3. Direction buttons Including up, down, left, right and OK buttons, quick and convenient 4.
  • Page 19 EKG6012 Latex free Atmospheric pressure limitation Temperature limitation Humidity limitation This way up Fragile, handle with care Keep away from rain Stacking limit by number...

  • Page 20: Chapter 5 Operation Precautions

    EKG6012 Chapter 5 Operation Precautions 5.1 Precautions before use 5.1.1 For safe and effective use, please read the user manual carefully before operation. 5.1.2 Check to ensure that the device is in good condition. 5.1.3 The device shall be placed on a flat surface, and moves gently to avoid strong vibration or shock.

  • Page 21: Chapter 6 Preparations Before Operation

    EKG6012 Chapter 6 Preparations before Operation 6.1 Installation of recording paper 6.1.1 The device adopts high-speed recording paper, its specification is 110 mm(W)×20 m(L). 6.1.2 The installation method of recording paper is described as below: (1) Slide the cover switch to the left to open the paper compartment cover. Take out the paper axis, insert it into the roll paper.

  • Page 22: Battery

    EKG6012 connection is secure and reliable, and the device is automatically grounded. When the device is used in conjunction with other medical equipment, use the supplied potential equalization wire to connect the equipotential terminal of the device to the equipotential terminal of the connected equipment to prevent leakage current and protect the device.

  • Page 23: Limb Electrodes

    EKG6012 The chest electrodes should be installed to the following parts: C1（Vl）: the fourth intercostal space at the right sternal margin C2（V2）: the fourth intercostal space at the left sternal margin C3（V3）: between C2 and C4 C4（V4）: the intersection between midclavicular line and the fifth intercostal space C5（V5）: left anterior axillary line on the same plane as C4...

  • Page 24: Lead Method And System

    EKG6012 Chest 3 Green Green Chest 4 Brown Blue Chest 5 Black Orange Chest 6 Purple Purple Note ◼ It is recommended to install the lead cables after turning off the device. ◼ Apply appropriate amount of conductive paste on the electrode when installing the electrode.

  • Page 25: Chapter 7 Operation Instructions And Parameter Setting

    EKG6012 Chapter 7 Operation Instructions and Parameter Setting 7.1 Main Interface Disk storage usage Current patient file account Power status Function buttons Figure 7-1 1. Time System time can be set in , so the detail time of ECG recording can be noted.

  • Page 26: Sampling Interface

    EKG6012 to perform system setting to perform sampling setting to set the parameters used in automatic analysis to set the print mode, print style and print content, etc. to view the information about our company, software version. Quick switch: use the...
  • Page 27 EKG6012 Status bar 1. HR: current sampled heart rate value 2. Lead-off and overload: In demo mode, it displays “DEMO ECG”. In sampling mode, it displays the detected lead status. A red lead icon represents lead-off. A yellow lead icon represents overload.

  • Page 28: Case Information Input Interface

    EKG6012 7.3 Case information input interface Due to the difference of system setup (refer to 7.6), user could choose to input case information before or after the sampling, or not input the case information, the dialogue box is shown as below:...

  • Page 29: Case Management

    EKG6012 keys will be grayed out and unavailable, as shown below: Figure 7-5 7.4 Case management In the main interface, click to enter the case management interface, as shown below: Figure 7-6 The above interface shows all medical records stored in the device. User can search necessary cases by the query function in the interface (refer to 7.4.1), modify or delete case...

  • Page 30: Query

    EKG6012 export the cases in the device to the file (EKG_archive) of a U-disk via the USB interface. 7.4.1 Query Click “Query” to enter the query interface shown below. Input query conditions and click “Query” to obtain expected results. After clicking “Clear”, the system will clear all query conditions that entered.

  • Page 31: Review

    EKG6012 conditions and choose “Cond.And” to quickly find the case. 7.4.2 Review In the case management interface, select a case to be reviewed, click “Review” to displays the case information. User is allowed to modify patient information, after clicking “Save”, the information will be changed.

  • Page 32: Date And Time Setup

    EKG6012 print. 7.5 Date and time setup In the main interface, click to enter the following interface to set date and time. Figure 7-11 In current interface, user can switch the items via buttons, and adjust the content of the item by buttons.

  • Page 33: Sampling Setup

    EKG6012 table: Item Options Description If there is no operation after reaching the set [30Seconds]/[1 Minute]/[2 time, screen backlight will turn off. If it is set Back-light Minutes] /[5 Minutes]/[10 to “Always On”, the backlight will always Minutes]/[Always On] keep on.

  • Page 34: Print Setup

    EKG6012 Item Options Description AC Filter [ON]/[OFF] Turn on or off the AC filter. EMG Filter [ON]/[OFF] Turn on or off the EMG filter. DFT Filter [ON]/[OFF] Turn on or off the Baseline filter. Set to input the case information...

  • Page 35: Lead Placement

    EKG6012 Print [Auto 6×2+1]/ [Auto 6×2]/ [Auto The system takes the selected option as Mode 4×3+1]/ [Auto 4×3]/ [Auto 3×4+1]/ default print mode. [Auto 3×4]/ [Auto 2×6+1]/ [Auto 2×6]/ [Rhythm 7]/ [Rhythm 6]/ [Rhythm 5]/ [Rhythm 4]/ [Rhythm 3] and [Rhythm 2]/ [Manual]...

  • Page 36: About

    EKG6012 European Standard is shown as below: Figure 7-15 The American Standard is shown as below: Figure 7-16 7.10 About In the main interface, click to view the information about the device, shown as below:...
  • Page 37 EKG6012 Figure 7-17...

  • Page 38: Chapter 8 Troubleshooting

    EKG6012 Chapter 8 Troubleshooting 8.1 Auto shutdown ➢ The battery is almost running out, which causes overdischarge protection circuit action. ➢ The voltage of AC power supply is too high, which causes overvoltage protection circuit action. 8.2 AC interference ➢...

  • Page 39: Baseline Drift

    EKG6012 Note: If the interference can not be removed after taking above measures, please use a EMG filter. The ECG waveform recorded at this time will be slightly attenuated. 8.4 Baseline drift ➢ Whether the electrode installation is stable? ➢...
  • Page 40 EKG6012 waveform, large 2. Low battery. 2. Clean electrode slice and the up-and-down, connection between skin under the electrode with beeline figure electrodes and patient skin. alcohol. 4. Loose connection between lead 3. Charge the battery. cables and the device's plug.

  • Page 41: Chapter 9 Maintenance

    EKG6012 Chapter 9 Maintenance 9.1 Battery 9.1.1 The device is designed with built-in full-sealed and maintenance-free rechargeable lithium battery, also equipped with perfect auto-charging-discharging monitor system. When the device is connected to AC power supply, the battery will be charged automatically. Battery status will be displayed on right edge of LCD screen in powering on state, as shown in Table 9-1.

  • Page 42: Recording Paper

    EKG6012 ⚫ Do not use the battery near fire sources or in environments where the temperature exceeds 60°C. Do not heat the battery or throw it into fire, water and avoid splashed by water. ⚫ Do not puncture, hammer or strike the battery or destroy it by other ways, otherwise it will cause battery overheat, smoke, deform or burn dangers.

  • Page 43: Lead Cables And Electrodes

    EKG6012 9.4 Lead cables and electrodes 9.4.1 The connectivity of the lead cable can be detected by the multimeter. Check whether each wire of the lead cable is in good contact according to the following table. The resistance of each wire from the electrode plug to the corresponding pin in the lead cable plug should be less than 10Ω.
  • Page 44 EKG6012 9.8.2 The device associated circuit schematics and critical parts list are only available to authorized service station or maintenance personnel, who is responsible for maintenance of the device. 9.8.3 The device belongs to measuring instrument. User should send the device to national designated inspection institution for inspection according to the requirements of the national metrological verification procedure.

  • Page 45: Chapter 10 Packing List And Accessories

    EKG6012 Chapter 10 Packing List and Accessories 10.1 Accompanying accessories When the device is shipped from the factory, the intact packaging should contain the following contents, as shown in Table 10-1: Table 10-1 Packing list and accessories Name Quantity Electrocardiograph...

  • Page 46: Appendix I Ecg Automated Measurement&Interpretation Guide

    EKG6012 Appendix I ECG Automated Measurement&Interpretation Guide 1. Preface The appendix describes the functions of ECG automated measurement and automated interpretation. It explains the specific implementation method, algorithm and formulas related to these two functions, as well as the content output by the automated measurement and automated interpretation.
  • Page 47 EKG6012 Left axis deviation Right axis deviation Completeness Right Bundle branch block Completeness Left Bundle branch block No Completeness Right Bundle branch block No Completeness Left Bundle branch block V1 shows RSR' type Left anterior fascicular block Left posterior fascicular block...

  • Page 48: Algorithm Description

    EKG6012 Old inferolateral MI ST depression, mild anteroseptal myocardial ischemia ST depression, mild anterior myocardial ischemia ST depression, mild extensive anterior myocardial ischemia ST depression, mild apical myocardial ischemia ST depression, mild anterolateral myocardial ischemia ST depression, mild high lateral myocardial ischemia...

  • Page 49: Find The Cardiac Impulse Location

    EKG6012 calculation, parameters calculation, and interpretations judgment based on known parameters. The workflow is shown as below: Start ECG waveform sampling Recognize all R points by slope method Waveform superposition taking R point as center Determine the positions of each wave...

  • Page 50: Find The Beginning/End For Each Wave

    EKG6012 4) Locate: after found the qrs-complex, search the max value point between the beginning point and end point in the ecg original data, mark the point as cardiac impulse location. 5) Dynamically threshold adjustment: after found the cardiac impulse location, use the value at the cardiac impulse location for the dynamically adaptive adjustment of the threshold value.

  • Page 51: Amplitude Measurement

    EKG6012 beginning of P-wave. 4) If the found P-wave is narrow, research the P-wave according to the following steps. 5) Change the searching range of 30ms-100ms to 100ms-350ms in step 1, repeat step 1-4. 6) If the found P-wave is still narrow, it means that P-wave doesn’t exist.

  • Page 52: Calculation After Intervals Determination

    EKG6012 this average value as the baseline of QRS complex. Search boundary points that exceeding the baseline from the start point of Q wave to the end point of S wave. Each adjacent two boundary points forms a sub-wave. Determine whether each sub-wave is a recognizable minimum wave (see the definition below).
  • Page 53 EKG6012  ③ PR-interval - Ps ④ ③ P-duration - Ps ⑤  QRS-duration - Qs ⑦ ⑥ T-duration - Ts ⑦  - Qs  Electric axis formula:    arctan(2.0 ⑧ P electric axis: : voltage sum from the beginning point to the end...

  • Page 54: Interpretations Judgment Based On Parameters

    EKG6012 ① RR: RR-interval ② Qs: beginning of the Q-wave ③ Ps: beginning of the P-wave ④ Pe: end of the P-wave ⑤ Se: end of the S-wave ⑥ Ts: beginning of the T-wave ⑦ Te: end of the T-wave ⑧...
  • Page 55 EKG6012 QRS-complex of lead V1 is RSR' type V1 shows RSR' type QRS-duration<110ms, QRS-axis <-30 degree, lead I and lead aVL are qR type, and Left anterior fascicular block Q-wave duration<20ms, lead II, III and aVF are rS type. QRS-duration<110ms, QRS-axis >90...
  • Page 56 EKG6012 V2, V3, V4, V5. Early myocardial infarction change of leads V4, Early apical MI V5, no change of leads V1, V2, V3. Acute myocardial infarction change of leads Acute apical MI V4, V5, no change of leads V1, V2, V3.
  • Page 57 EKG6012 V3, V4, V5. anterior myocardial ischemia ST depression, mild apical Mild ST-segment depression of leads V4, V5, and no change of leads V1, V2, V3. myocardial ischemia ST depression, mild anterolateral Mild ST-segment depression of leads I, aVL, V4, V5, V6.

  • Page 58: Data Sources And Data Preprocessing

    EKG6012 Abnormal Q-wave: For leads I, II, III, avR, avL, avF, V3, V4, V5, V6, voltage of Q-wave <-0.3mV, or 4 times of negative wave of Q-wave> voltage of R-wave and R’-wave, and/or Q-duration>40ms. For leads V1, V2, voltage of Q-wave <-0.08mV and Q-duration>10ms.

  • Page 59: Cse Introduction

    EKG6012 4.3 CSE introduction The EU CSE (Common Standards for Quantitative Electrocardiography) ECG database contains 3-lead measurement database of collection1 and collection2, 12-lead measurement database of collection3 and collection4, and a diagnostic database of collection5. In which, the 12-lead measurement database contains 250 groups of interference data; Diagnostic database contains 1220 cases of short-term ECG recording.

  • Page 60: Data Coverage Of Verification For Automated Interpretation

    EKG6012 Determined by the diagnostic result that judged as normal in cardiac catheterization and ultrasonic examination, and the result that judged as normal in physical examination. 2) Atrium hypertrophy Determined by the diagnostic results of ultrasonic examination. 3) Myocardial infarction and myocardial ischemia Determined by the physician diagnostic results of cardiac catheterization.

  • Page 61: Data Preprocessing

    EKG6012 Note: The heart abnormalities such as posterior myocardial ischemia, early posterior MI and old posterior MI are not included in the database. These abnormalities and other heart disorders not contained in above sheet won’t be regarded as the judgment object for the verification of automated interpretation accuracy.

  • Page 62: Customized Data Preprocessing

    EKG6012 system. Then cases will be imported to the device. After that, the case of MA_0001~MA0125 shall be used for the following verification of automated measurement parameters, and the case of D_0001~D_1220 shall be used for the following verification of automated interpretation.

  • Page 63: Verification And Process For Cse Measurement Database

    EKG6012 5.1.2 Verification and Process for CSE measurement database Import the converted case files into the device, add appropriate database records, then waveform for all case files can be reviewed in the device, therefore the automated measurement parameters can be obtained.
  • Page 64 EKG6012 Start Read expert diagnostic marks Eliminate obvious unfit cases Read initial case of DCD file Frequency conversion Voltage conversion Get ECG data file Automated measurement parameters Compare automated measurement parameter and expert diagnostic mark Conclude mean value of comparison...

  • Page 65: Verification Results

    EKG6012 5.1.3 Verification results 5.1.3.1 Accuracy of amplitude measurements Calibration and analytical ECGs shall be used to measure the amplitude value, the summary as follows: Amplitude Mean difference (uV) Standard deviation (uV) P-wave -1.70 5.72 Q-wave 7.51 18.07 R-wave -18.05 21.70...

  • Page 66: Verification Of Interpretation Function

    EKG6012 QT-interval Line frequency -8.55 20.73 QT-interval Base-line 36.20 64.47 The biological ECGs are fed into the device in form of digital signals, then the measurement value can be obtained by calculation. Test condition: a) without NOISE b)with 25uV high frequency c) with 50uV peak to valley 50Hz/60Hz sinusoidal line frequency NOISE d) with 1mV peak to valley 0.3Hz sinusoidal base-line NOISE...
  • Page 67 EKG6012 5.2.1.2 Customized database Start Initial case data ecg format as system required Import to device Expert diagnosis Draw ECG waveform Identify QRS-complex QRS-complex superposition Auto measurement parameter Conclude automated interpretation items Start comparing Summarize the global statistical results of comparison...

  • Page 68: Verification Results

    EKG6012 5.2.2 Verification results Positive ECGs Sensitivity Specifici predicti Item number ty % value % No abnormal 92.01 79.16 97.38 Sinus mode Bradycardia 96.68 99.73 98.64 Sinus mode Tachycardia 97.44 96.49 96.90 Left atrium Hypertrophy 51.09 99.89 81.82 Right atrium Hypertrophy 42.64...
  • Page 69 EKG6012 Early apical MI 88.32 87.21 88.54 Acute apical MI 78.12 78.66 53.85 Old apical MI 79.63 89.94 80.00 Early anterolateral MI 77.51 79.94 83.33 Possible acute anterolateral MI 28.57 99.77 33.33 Old anterolateral MI 70.00 93.60 50.00 Early high lateral MI 79.65...
  • Page 70 EKG6012 myocardial ischemia ST depression, high lateral 90.06 99.31 57.14 myocardial ischemia ST depression, inferior 89.88 99.13 40.08 myocardial ischemia ST depression, inferolateral 91.39 99.16 50.47 myocardial ischemia Sensitivity: probability that a "True sample" would be determined as certain "Item" by automated interpretation function;...

  • Page 71: Appendix Ii Emc Guidance And Manufacturer Declaration

    EKG6012 Appendix II EMC Guidance and Manufacturer Declaration Table 1: Guidance and manufacturer’s declaration –electromagnetic emission The Infrared Thermometer is intended for use in the electromagnetic environment specified below. The purchaser or the user of the device should assure that it is used in such environment.
  • Page 72 EKG6012 Table 3: Guidance and manufacturer’s declaration – electromagnetic immunity The Infrared Thermometer is intended for use in the electromagnetic environment specified below. The customer the user of the Infrared Thermometer should assure that it is used in such environment.
  • Page 73 EKG6012 ITY to Pulse 704 – modulation Band 13, wireless commun 217 Hz ications equipme 800/900, TETRA 800, Pulse 800 – iDEN modulation 820, CDMA 18 Hz 850, Band 5 1720 1800; 1845 CDMA 1900; Pulse 1 700 1900; modulation –...
  • Page 74 EKG6012 ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by IEC 61000-4-3. a) For some services, only the uplink frequencies are included. b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
  • Page 75 EKG6012 ⚫ When the device is disturbed, the data measured may fluctuate, please measure repeatedly or in another environment to ensure its accuracy.
  • Page 76 EKG6012...

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