EMF Report 1

FCC ID: U4FWRLCHR

RF Exposure Info

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FCCID_4310625

EMF Evaluation Report Date of Report 3/04/2019 Client’s Contact Number of 9 person: Joaquin Gomez Serrano pages: Responsible Test Juho Tuohino engineer: Testing Verkotan Oy Client: Datalogic S.r.l. laboratory: Elektroniikkatie 17 Via San Vitalino, 13 90590 Oulu 40012 Lippo di Calderara di Reno Finland Italy Tested device WLC4090 (BK-910) Related reports: - Testing has been 680106 D01 RF Exposure Wireless Charging App v03 carried out in Rf exposure considerations for low power consumer accordance with: wireless power transfer applications Documentation: The test report must always be reproduced in full; reproduction of an excerpt only is subject to written approval of the testing laboratory Test Results: The EUT complies with the requirements in respect of all parameters subject to the test. The test results relate only to devices specified in this document Date and 03.04.2019 signatures: Miia Digitally signed by Miia Nurkkala Nurkkala Date: 2019.04.03 10:03:09 +03'00' Laboratory Manager 1 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

TABLE OF CONTENTS 1. SUMMARY OF EMF TEST REPORT ............................................................................................................... 3 1.1 TEST DETAILS ........................................................................................................................................................................... 3 1.2 MAXIMUM RESULTS ............................................................................................................................................................. 3 1.2.1 KDB 680106 D01................................................................................................................................................................ 3 2. DESCRIPTION OF THE DEVICE UNDER TEST (DUT) ................................................................................... 4 2.1 TECHNICAL DATA OF THE DUT ........................................................................................................................................ 4 3. TEST EQUIPMENT ........................................................................................................................................... 5 3.1 TEST SETUP ............................................................................................................................................................................... 5 3.1.1 KDB 680106 D01................................................................................................................................................................ 5 3.2 LIMITS ......................................................................................................................................................................................... 6 3.3 MEASUREMENT UNCERTAINTY ....................................................................................................................................... 7 4. TEST RESULTS ................................................................................................................................................. 8 4.1 ELECTRIC FIELD RESULTS .................................................................................................................................................... 8 4.2 MAGNETIC FIELD RESULTS ................................................................................................................................................. 9 2 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

1. SUMMARY OF EMF TEST REPORT 1.1 Test Details Equipment under Test (EUT): Product: WLC4090 Manufacturer: Datalogic Serial Number: Z18P01795 FCC ID U4FWRLCHR Type: BK-910 DUT Number: 22823 State of the Sample Production sample Testing information: Testing performed: 12.10.2018 Notes: Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx Measurement performed by: Juho Tuohino 1.2 Maximum Results 1.2.1 KDB 680106 D01 The maximum reported electric field and magnetic field strength values are shown in tables below. The device conforms to the requirements of the standards when the maximum measurement value is less than the MPE limit. Distance Test to EUT* MPE Limits Measured value Result [cm] Electric field strength 15 614 V/m 0.81 V/m PASS Magnetic field strength 15 1.63 A/m 0.24 A/m PASS *measured from the center of the probe(s) to the edge of the device Distance MPE Limits- Measured Measurement Test to EUT* Result location 50% value [cm] Magnetic field sides 15 0.815 A/m 0.17 A/m PASS strength Magnetic field surrounding top 20 0.815 A/m 0.15 A/m PASS strengthfrom the center of the probe(s) to the edge of the device *FCC measured 3 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

2. DESCRIPTION OF THE DEVICE UNDER TEST (DUT) The DUT is a cradle for a bar code reader with a wireless charging capability. It can be powered via host communication port or aux power port. Device Category Mobile Exposure Environment Uncontrolled 2.1 Technical data of the DUT Operating Frequency 120-200 kHz Antenna Type Inductive loop coil antenna Power Supply AC 230 V / DC 5V usb Maximum Nominal Power 5W 4 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

3. TEST EQUIPMENT Test Equipment Model Serial Number Calibration Date E and H field meter Narda EHP-200AC 170WX80310 19.3.2018 3.1 Test setup 3.1.1 KDB 680106 D01 E- and H-field was measured from all sides and top of the DUT. The separation distance reported is measured from the center of the probe to the edge of the device. Photos of the test setup are shown in appendix A. Figure 1 The top view of the test setup. 5 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

3.2 Limits Limints for MPE 6 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

3.3 Measurement uncertainty Magnetic field 30kHz-30MHz Quantity Relative standard Probability Sensitivity Degrees of Relative uncertainty uncertainty in (%) distribution coefficient freedom contribution Uncertainty of the calibration of 3.9 normal 1 infinite 0.039 the sensor Uncertainty of the frequency 2.7 rectangular 1 infinite 0.027 response of the sensor Uncertainty of the non-linearity 3.4 rectangular 1 infinite 0.034 Uncertainty of the anisotropy 4.5 rectangular 1 infinite 0.045 Uncertainty of the resolution of the 1 rectangular 1 infinite 0.01 measurement system Uncertainty of the temperature 2.3 rectangular 1 infinite 0.023 variation Uncertainty of the repeatability of 2 normal 1 4 0.02 the measurements Combined standard uncertainty normal infinite 0.08 Expanded uncertainty (k=2) 16 % Electric field 9kHz-27MHz Quantity Relative standard Probability Sensitivity Degrees of Relative uncertainty uncertainty in (%) distribution coefficient freedom contribution Uncertainty of the calibration of 3.9 normal 1 infinite 0.039 the sensor Uncertainty of the frequency 1.7 rectangular 1 infinite 0.017 response of the sensor Uncertainty of the non-linearity 2.7 rectangular 1 infinite 0.027 Uncertainty of the anisotropy 4.1 rectangular 1 infinite 0.041 Uncertainty of the resolution of the 1.9 rectangular 1 infinite 0.019 measurement system Uncertainty of the temperature 2.3 rectangular 1 infinite 0.023 variation Uncertainty of the repeatability of 2 normal 1 4 0.02 the measurements Combined standard uncertainty normal infinite 0.074 Expanded uncertainty (k=2) 14.8 % 7 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

4. TEST RESULTS Test description Findings A frequency span from 3 kHz to 30 MHz was No spurious above -20 dBc was identified. scanned to check for spurious. Occupied Band Width check. OBW was measured and found to be less than 1kHz. RBW set to 1 kHz, Span 20 kHz. All sides and top of DUT were scanned. Maximum emissions from top side of loop (Appendix A: Photos of DUT) E- and H-field measurement was performed with Results in the table below. increased monitoring period. 4.1 Electric Field Results Separation Battery Measurement Measured E- Power charge distance* direction Field [V/m] supply status [cm] Top 15 Peak 0.80 AC 230V ~90% Top 15 Peak 0.80 AC 230V ~50% Peak 0.81/ 6 min Top 15 AC 230V Avg 0.71 Top 15 Peak 0.64 DC 5V Side 1 15 Peak 0.44 AC 230V ~1% Side 2 15 Peak 0.47 AC 230V Side 3 15 Peak 0.48 AC 230V Side 4 15 Peak 0.45 AC 230V *measured from the center of the probe(s) to the edge of the device 8 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx

4.2 Magnetic Field Results Separation Power Charge Measurement Measured H- supply distance* status direction Field [A/m] [cm] Top 15 Peak 0.22 AC 230V ~90% Top 15 Peak 0.24 AC 230V ~50% Peak 0.24 / 0.17 AC 230V Top 15 6 min Avg Peak 0.15 / AC 230V Top 20 6 min Avg 0.13 Top 15 Peak 0.20 DC 5V ~1% Side 1 15 Peak 0.17 AC 230V Side 2 15 Peak 0.15 AC 230V Side 3 15 Peak 0.15 AC 230V Side 4 15 Peak 0.14 AC 230V *measured from the center of the probe(s) to the edge of the device 9 (9) Copyright © Verkotan 2018 Document ID: FCC_EMF_Report_BK-910_ID3121_02042019.docx


Document Created: 2019-04-03 10:03:09
Document Modified: 2019-04-03 10:03:09
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