SALES AND SERVICE SYSTEM Service Network with Sales Representatives Stationed in 62 Countries/Areas FINLAND NORWAY JAPAN LEADER ELECTRONICS CORP. SWEDEN 2-6-33, Tsunashima-Higashi, Kohoku-ku, Yokohama 223-8505, Japan PHONE: 81-45-541-2123 FAX: 81-45-541-2823 THE NETHERLANDS UNITED KINGDOM RUSSIA LEADER ELECTRONICS EUROPEAN OFFICE Nijverheidsweg 15, 5627BT Eindhoven, ESTONIA Regional Office CHINA (Beijing) The Netherlands LITHUANIA LEADER ELECTRONICS CORP. BEIJING IRELAND OFFICE PHONE: 31-40-2565008 DENMARK FAX: 31-40-2565009 Unit 08, 6th floor of Tower B, BEIJING COFCO PLAZA No.8 Jianguomennei Dajie BELGIUM CZECH Dongcheng District, Beijing 100005, P.R. China FRANCE PHONE: 86-10-8511-8606, 8511-8607 GERMANY AUSTRIA FAX: 86-10-8511-8606 KOREA SWITZERLAND SPAIN ITALY SYRIA BANGLADESH PORTUGAL PAKISTAN THAILAND GREECE JORDAN CANARY Is. VIETNAM TUNISIA KUWAIT NEPAL EGYPT TAIWAN MOROCCO ISRAEL INDIA OMAN PHILIPPINES SAUDI ARABIA UNITED ARAB EMIRATES GHANA SRI LANKA BRUNEI CHINA (Shanghai) MALAYSIA Leader Electronic Corp. has focused its LEADER SHANGHAI TECHNICAL SINGAPORE attention on international markets from the SERVICE CENTER No.776 Qinzhou Road(SOUTH), INDONESIA beginning. Shanghai,CHINA Zip Code 200233 Regional Office CHINA (Dongguan ) LEADER established local corporations in PHONE: 86-21-64517655, 64083038 LEADER INSTRUMENTS (H. K.) LTD. U.S.A. in 1969, in Hong Kong in 1980. FAX: 86-21-64083038 DONGGUAN OFFICE 9G, Tower B, Lianjian Trade Building, Many other positive measures have also been Dongguan Station, changping, AUSTRALIA dongguan, Guangdong Province, China taken before other companies. PHONE: 86-769-83829-381, 83829-391 In July 1995, LEADER’s own service center SOUTH AFRICA FAX: 86-769-3819-289 was set up at Shanghai for better service/ maintenance in China. In 2003, Regional Offices were established in Beijing and Dongguan to support LEADER products, which are becoming increasing popular in view of the growing Japanese presence in the China. Also in September 2006, Regional office was established in THE NETHERLANDS. The company now has a global network linking its agents in 62 countries/areas. LEADER INSTRUMENTS (H.K.) LTD. LEADER SHANGHAI TECHNICAL LEADER INSTRUMENTS CORP. (HONG KONG) SERVICE CENTER (CHINA) BEIJING OFFICE 2 CANADA U.S.A. (Los Angeles) LEADER INSTRUMENTS CORP. LEADER INSTRUMENTS CORP. Los Angeles office (LOS ANGELES) 6484 Commerce Drive, Cypress, California 90630 U.S.A. PHONE: 1-714-527-9300 FAX: 1-714-527-7490 MEXICO HONG KONG LEADER INSTRUMENTS (H. K.) LTD. COSTA RICA Room 303 New East Ocean TRINIDAD AND Centre, 9 Science Museum Road, TOBAGO Tsimshatsui East, Kowloon, HONG KONG PHONE: (852) 2721-2503 VENEZUELA FAX: (852) 2723-7573 COLOMBIA PERU BRAZIL CHILE NEW ZEALAND ARGENTINA LEADER ELECTRONICS CORP. LEADER ELECTRONICS CORP. SHANGHAI OFFICE (Head office) 3 TRACEABILITY ACCURATE TRACEABILITY Measuring Standards and Traceability ENSURES HIGHLY As technological innovations are making significant ad- vances possible in the electronics industry, users are RELIABLE MEASUREMENTS demanding higher product quality and reliability. As a result, the measuring instruments used for the research, develop- ment, production, inspection, and measurement of products must also provide higher performance and precision. Such instruments must also offer trouble-free operation and must provide high reliability and uniformity. If measuring instru- ments lack this reliability and uniformity, the results of important research or testing will prove unreliable. Conse- quently, the precision of each measuring instrument used must be carefully checked. The management of measuring instruments is of vital impor- tance. To maintain high measuring accuracy, periodic calibration must be done. For such calibration, standards and measuring devices must be prepared and calibrated ac- cording to higher-level standards, up to and including the national standards, in order to comply with international standards. For this reason, a high level of trace- ability must be established. Resistance and capacitance standards Voltage standards 4 Automatic phase noise measurement system Frequency and Attenuation standards Traceability of Leader Electronics Standards The figure to the next page shows an example of the traceability The traceability standards used in the standards room are clas- system used by Leader Electronics. At Leader, a standards sified into collation, primary, and secondary standards according room is provided where international standard values are set for to actual applications. The collation standards use the national the internal measuring devices. The internal standards that are standard values provided by the Japan Electric Meters Inspec- periodically determined by public organizations are well man- tion Corporation (JEMIC) and Japan Quality Assurance aged to maintain high precision. These standards are used for Organization (JQA) for direct calibration. The primary standards periodic of the various measuring instruments used by the pro- are high-precision standards for measuring instruments used to duction, research and development, and maintenance sections. maintain the internal standard values for establishing the sec- As a result, all internal measuring instruments perform tracing ondary standards. The established collation standards are used according to international standards to ensure the production of for calibration. The secondary standards are for measuring in- high-precision products. struments used to directly calibrate measuring instruments at Standards Room work sites. When standards are to be maintained or newly established, changing environmental factors may adversely affect the results. Leader Electronics will continue to develop high-level measure- To ensure that the same results are always obtained, such envi- ment technologies and establish internal standards for ronmental conditions as temperature and humidity must remain management to improve the quality and reliability of its products constant. This is very important for accurate traceability. The for safe operation. standards room of Leader Electronics has a shielded wall struc- ISO9001/ISO9002 ture in which air is blown in from the entire ceiling. Air is blown Leader Electronics Corp. has already obtained ISO9001 out linearly from the side walls to maintain a stable distribution of certification. The Calibration and Service Department inde- temperature and humidity. The room temperature is 23 °C ±2 pendently obtained ISO9002 certification and has °C at a relative humidity of 55 % ±10 %, with an electromagnetic established a high-quality assurance system. shielding effect of 40 dB or more. Leader Electronics Corp. was certified by National Institute of Technology and Evaluation (NITE) on March 2002 as complying with "ISO/IEC17025 (JIS Q17025)," i.e., interna- tional standards for calibration service business, based on the Japan Calibration Service System (JCSS). 5 TRACEABILITY TRACEABILITY CHART National Institute of Advanced Industrial Science and Technology AIST Japan Electric Meters Inspection Corporation JEMIC FLUKE PANASONIC Reference Reference Reference DC Standard Thermal Standard Standard Standard Standard Transfer Current Inductor Capacitor Resistor Standard Shunt 1482-L 1404-A SR104 732A/732B 540B Y5020 GR GR esi FLUKE FLUKE FLUKE Null Detector 845AR FLUKE Impedance Capacitance Resistance N11 EM Video Measuring Measuring Bridge Assembly System Calibrator 2100 1620-A 242D 5700A FLUKE AC Trans- AC Multimeter Calibrator esi GR esi Calibration Conductance Measurement System Amplifier Standard Reference 5200A/5215A 5220A 5790A 3458A 5700A Divider FLUKE FLUKE FLUKE HP FLUKE Standard 752A FLUKE Resistor 742A FLUKE Calibrator Digital High Voltage Time Interval Multimeter Digital Meter Analyzer 8508A 5500A 8505A 149-10A TA520 FLUKE FLUKE KIKUSUI YOKOGAWA Standard Standard Standard DC High High Voltage AC Voltage Distortion Oscilloscope Inductor Capacitor Resistor Voltage DC Power Current Meter Calibrator SM228C/SM330 SR1 esi Divider Supply Standard Calibrator TG501/5820A RS-TYPE 1433-M/2793-03 TR1321D NG10P200 2858 AC12A TEKTRONIX/ ANDO SOSHIN GR/YEW ADVANTEST GLASSMAN YEW SHIBASOKU FLUKE Multi Standard Digital High AC/RMS Digital High Voltage Potential Automatic Oscilloscope Frequency Capacitor Megohm Volt Meter Multimeter Probe Transformer Distortion 5470A LCR Meter Meter 3468B Analyzer HP 4274A TM520C TR8611A 400E/3400A 34401A TR1116 PTS-4-1-SP AD725C/334A SS7840 YHP SOSHIN ADVANTEST HP AGILENT TECHNOLOGIES ADVANTEST TOKYOSEIDEN SHIBASOKU/HP IWATU CS6400 KENWOOD INDUCTANCE.CAPACITANCE.RESISTANCE AC/DC VOLTAGE.AC/DC CURRENT.WAVE FORM 6 National Institute of National Institute of Standards and Technology Information and Communications Technology NIST (USA) NICT National JJY Japan Quality Standards Assurance Organization JQA TEKTRONIX AGILENT TECHNOLOGIES NITSUKI ANRITSU Sensor Themistor Power Meter Themal VLF/LF Module Mount Converter Receiver 11722A 8478B 432B A-55 900A HP HP HP FLUKE TRACOR Frequency Frequency Standard Counter Transfer/ 58503A 53132A Primary HP HP Standards Video Standard Measuring Dual Power Power Meter Frequency Frequency Measurement Attenuator Receiver Reference Range Standard Difference Set Sets Calibrator Meter VM 700T 11581A 8902A 435B-K05 8477A TR3110 527E TEKTRONIX HP HP HP HP ADVANTEST TRACOR Stereo Calibrator Stereo Modulator Demodulator JIG5709A VP-7633A JIG5709 5185 PANASONIC LEADER NITSUKI C QUAM Test Signal Synthesized Power Sensor Digital Power Optical Power Frequency Secondary Synthe Generator Signal