NS4HT100Electrical Tooth Brush

• The test results reported in this report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited FCC ID : NS4HT100 Chiaphua Industries Ltd. Application For Certification (FCC ID: NS4HT100) ISM Equipment WO# 9810384 CKL/at 8 January, 1999 INTERTEK TESTING SERVICES FCC ID: NS4HT100 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1:General Description EXHIBIT 2:System Test Configuration EXHIBIT 3:Emission Results EXHIBIT 4:Equipment Photographs EXHIBIT 5:Product Labelling EXHIBIT 6:Technical Specifications EXHIBIT 7:Instruction Manual INTERTEK TESTING SERVICES FCC ID: NS4HT100 ii MEASUREMENT/TECHNICAL REPORT Chiaphua Industries Ltd. - MODEL: HOMEDICS HT100 FCC ID: NS4HT100 8 January, 1999 This report concerns (check one:)Original Grant X Class II Change Equipment Type: ISM Equipment (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)?Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Report prepared by:Samuel Wu Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG Phone:852-2746-4534 Fax:852-2785-5487 INTERTEK TESTING SERVICES FCC ID: NS4HT100 iii Table of Contents 1.0 General Description................................................................................................................. 2 1.1 Product Description ................................................................................................................ 2 1.2 Related Submittal(s) Grants .................................................................................................... 2 1.3 Test Methodology ................................................................................................................... 3 1.4 Test Facility ............................................................................................................................ 3 1.5 Equipment List ............................................................................................................................4 2.0 System Test Configuration...................................................................................................... 6 2.1 Justification............................................................................................................................. 6 2.2 EUT Exercising Software ....................................................................................................... 6 2.3 Special Accessories................................................................................................................. 6 2.4 Equipment Modification ......................................................................................................... 7 2.5 Support Equipment List and Description ................................................................................ 7 3.0 Emission Results....................................................................................................................... 9 3.1 Field Strength Calculation..................................................................................................... 10 3.1 Field Strength Calculation (cont) ..........................................................................................11 3.2 Radiated Emission Configuration Photograph ...................................................................... 12 3.3 Radiated Emission Data ........................................................................................................ 13 4.0 Equipment Photographs........................................................................................................ 16 5.0 Product Labelling................................................................................................................... 18 6.0 Technical Specifications......................................................................................................... 20 7.0 Instruction Manual................................................................................................................ 22 INTERTEK TESTING SERVICES FCC ID: NS4HT100 iv List of attached file Exhibit typeFile Descriptionfilename Cover LetterLetter of Agencyletter.pdf Test ReportTest Reportreport.doc Test Setup PhotoRadiated Emissionradiated.jpg External PhotoExternal Photoophoto1.jpg, ophoto2.jpg Internal PhotoInternal Photoiphoto1.jpg to iphoto4.jpg Block DiagramBlock Diagramblock.pdf SchematicsCircuit Diagramcircuit.pdf ID Label/LocationLabel Artwork and Locationlabel.pdf User ManualUser Manualmanual.pdf INTERTEK TESTING SERVICES FCC ID: NS4HT100 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: NS4HT100 2 1.0General Description 1.1Product Description The equipment under test (EUT) is an induction rechargeable electrical tooth brush operating at a frequency 50kHz. The tooth brush can be placed in the charging base for the battery charging in which it is powered up by AC mains 110V. The brief circuit description is shown as follows:
R 4 and D 1 act as an rectifier.
L 3 , C 1 and R 6 act as an noise filter.
Q 2 and the associated circuit act as an oscillator.
L 1 acts as a primary coil.
L 2 acts as a secondary coil. 1.2Related Submittal(s) Grants This is a single application for certification of an ISM equipment. INTERTEK TESTING SERVICES FCC ID: NS4HT100 3 1.3Test Methodology Radiated emission measurements were performed according to the procedures in MP-5. All measurements were performed in Open Area Test Sites. Preliminary scans were performed in the Open Area Test Sites only to determine worst case modes. For each scan, the procedure for maximizing emissions in Section 5 and 6 were follow…

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