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Model 881 In-Circuit ESR & DCR Capacitor Tester Model 881 is a new portable In-Circuit ESR Meter, the new compact hand- held tester can be used to measure the equivalent series resistance of elec- trolytic capacitors in or out of circuit and can also be used to measure low value non-inductive resistors. Model 881 is a must for anyone that tests or trouble shoots printed circuit boards. ■ Measures ESR with a range of 0.1 to 30 ohms ■ Three color front panel chart shows ESR readings of Good, Fair, and Bad ■ Measures DCR with a range of 0.1 to 30 ohms ■ Automatically calibrates internal signal ■ 15mVp-p Output test voltage (will not turn on any solid- state devices) ■ Includes a one-handed tweezers test probe ■ Uses a standard 9VDC battery as power source In the past, LCR meters were used to test the value of a capacitor (testing it out of circuit). These meters will indicate that a bad capacitor is good because it only measures its capacitance value, and a bad capacitor can still store the correct amount of charge Specifications when it is tested by a LCR meter. By using the Model 881 in its model 881 DCR & ESR Mode, the tester can quickly detect a shorted capacitor in its DCR cycle and also determine it’s ESR value, letting you Open circuit probe voltage 15mV pp Output test frequency 100 KHz sine wave know right away if a capacitor is good or bad. By performing this test in-circuit, a technician can quickly test many capacitors on Measures ESR the printed circuit board reducing the amount of time normally ESR range ohms 0.1 – 30 (25 segment LED bar scale) spent on trouble shooting. Beeps from 1 to 5 beeps depending on ESR of capacitor Measures DCR DCR range ohms 0.5 – 30 flashing the LED Power One 9V battery or an external AC adapter (9V DC 100mA Optional Accessory 5.5mm x 2.1mm center pin+) LC- 29B Power drain 10mA typical Carrying Case Dimensions 1.5" x 3.8" x 5.7" ■ Light weight, durable Cordura nylon One Year Warranty Accessories ■ Protects your instruments ■ SUPPLIED: Instruction Manual Room to hold your test leads OPTIONAL: BE 12 AC Adapter, Carrying Case (Not included): LC-29B For more product information please visit www.bkprecision.com 91.

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ESR Meter – ESR 1 This Useful Little Helper Facilitates Debugging in Modern Electrical Appliances, Such As Tvs, Monitors, Video Recorders, Etc
Construction and operating instructions Best.-Nr.: 47773 Version 2.02, Date: November 2008 ESR - Meter ESR 1 English translation This German to English translation was made in September 2018 by someone who is not in any way affiliated with ELV. This translation is mainly based on Google Translate. No copyright infringement was intended. This translation is provided as-is and without guarantee, for the benefit of hobbyists and makers. Technical support For questions and information please contact our technical staff: ELV • Technischer Kundendienst • Postfach 1000 • D - 26787 Leer Repair service For devices made from ELV kits, we offer our customers a repair service. Of course your device will be repaired as cheaply as possible. In the sense of a quick completion, repair is carried out immediately if the repair costs do not exceed half of the complete kit price. Should the defect be bigger than that, you will first receive a non-binding quotation. You are welcome to send your device to: ELV • Reparaturservice • Postfach 1000 • D - 26787 Leer ELV Elektronik AG • Postfach 1000 • D-26787 Leer Phone 04 91/600 888 • Fax 04 91/6008-244 1 Construction and operating instructions Electrolytic capacitor tester with in-circuit testing capabilities ESR Meter – ESR 1 This useful little helper facilitates debugging in modern electrical appliances, such as TVs, monitors, video recorders, etc. The meter determines the equivalent series resistance (ESR) of an electrolytic capacitor (in short: Elko) ; even in circuit, without desoldering. The ESR gives information about the state of aging or the "quality" of an electrolytic capacitor. Especially in switching power supplies, electrolytic capacitors age faster than "normal" due to the high switching frequency or high working temperatures.
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Assembly Manual
Assembly Manual ESR Meter Mk.2 Cat No. K 7214 by Bob Parker PROJECT INFORMATION SUPPLIED BY SILICON CHIP - March/April 2004 Issue A.B.N. 34 000 908 716 Please read Disclaimer carefully as we WEBSITE: www.siliconchip.com.au can only guarantee parts and not the E-MAIL: [email protected] labour content you provide. K I T Forget about capacitance meters - an ESR meter is the way to go when it comes to identifying faulty electrolytics. This well-proven design is autoranging, low in cost and simple to build. T’S HARD TO BELIEVE that it’s meter kits have now been sold and sales sary to understand why they cause so Ialready eight years since my first ESR (mainly outside Australia) continue to be many electronic faults. (equivalent series resistance) meter was strong. Fig.1 is a simplified cross-section described – in the January 1996 edition Over those eight years, both Dick drawing which shows the basics. As with of “Electronics Australia”. It was Smith Electronics (which sells the kit) many other kinds of capacitors, the designed on a 386 PC! and the author have received many sug- plates of an electrolytic consist of two The ESR meter allowed service techni- gestions from constructors on improving long aluminium foil strips wound into a cians to quickly and easily identify the ESR meter kit – particularly on mak- cylinder. The big difference is that the defective electrolytic capacitors while ing the construction easier. This upgrad- they were still in circuit. It measures a ed version is the result and incorporates characteristic of electrolytic capacitors many of those ideas.
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MESR100 V2 User Guide V1.0 Features: JINGYAN MESR-100 V2 Auto-Ranging Capacitor ESR and Low Ohm Meter Measuring Range from 0.001 to 100.0R, Support in CIRCUIT Testing
MIB Instruments 2013 April MESR100 V2 User Guide V1.0 Features: JINGYAN MESR-100 V2 Auto-ranging capacitor ESR and Low Ohm Meter Measuring range from 0.001 to 100.0R, support IN CIRCUIT Testing. Using true 100 KHz sine wave to measure the ESR value, which is equal to the testing method of capacitor manufacturer. In the market, there is some technique using short pulse method to testing, but the value will be varying vs the capacitance and sometimes reading is different from the manufacturer's value. What is ESR of capacitor? There is a series resistor inside capacitor, using 100kHz to remove the impedance 1/(2*pi*F*C), the impedance become small, and we can then measure the true series resistor value. A bad E-capacitor will have larger ESR and create large ripple rather than filtering noise. Normally, a big capacitor is larger than 3 ohm. Using this theory, we can measure the capacitor is bad/ damaged or good in condition. Because our ESR meter only applies less than 15mV DC or peak to peak on a good capacitor, as a result we can use it as in circuit test. Because this low testing voltage, it cannot turn on the semiconductor inside a circuit under testing. During repairing TV, LCD, Audio board, etc. we can in circuit testing the capacitor is good or not. *Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check Compare MESR100 old V1 and new V2 Improvement: 1) Change square wave to sine wave 100 KHz, reduce square wave’s high frequency component, and affect the reading passing the test leads and capacitor.
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A Simple ESR Meter
A simple ESR meter Gord Rabjohn Electrolytic capacitors are one of the major causes of failure in electronic equipment of any vintage. And, they can fail many different ways. We have all seen the “leaky” capacitor (both electric leakage, and leakage of the physical contents of the capacitor). We all know to verify that a capacitor has low leakage current (especially if it feeds the grid of a tube!). Many of us attempt to reform electrolytic capacitors. Once reformed, we may check the capacitance to see how close it is to specification. Yet, there is one more test required to ensure that the capacitor is good: one should confirm that the Equivalent Series Resistance (ESR) of the capacitor is low. The ESR gives you some idea about how much current the capacitor can supply into a load. I have seen capacitors that appear to have the correct capacitance, are not leaky, and yet somehow did not seem to be performing the power supply filtering function we have come to expect. These capacitors had excessive series resistance. High ESR capacitors are not found just in old equipment. I find that even modern capacitors can degrade. In fact, I suspect that modern capacitors are probably constructed even more poorly than old style Drylitic capacitors. Note that many modern electrolytic capacitors are rated for only 1000 hours (about a month) of operation at 85C. There are a large number of ESR meters available; just do a Google search for ESR meters, and you’ll find many. There are nice plans at these web sites: http://www.members.shaw.ca/swstuff/esrmeter.html http://ludens.cl/Electron/esr/esr.html Probably, most of them are better than the one I describe in this article, but this one cannot be beat for simplicity and ruggedness.
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B&K PRECISION Component Testers
B&K PRECISION Component Testers BENCH LCR/ESR METER WITH CAPACITANCE METER COMPONENT TESTER The Model 810C Capacitance Meter is a compact capacitance meter, designed The B&K Precision Model 889B Synthesized In-Circuit for accurate measurement of capacitive LCR/ESR Meter is a high accuracy test instrument components. It features direct plug-in test sockets and test lead jacks. A zero used for measuring inductors, capacitors and resistors adjustment knob is also provided to “zero” with a basic accuracy of 0.2%. Also, with the built- test lead capacitance. in functions of DC/AC Voltage measurements and Features: Diode/Audible Continuity checks, the Model 889 can Zero adjustment knob not only help engineers and students to understand • • Capacitor test sockets the characteristic of electronics components but also • Fuse protected being an essential tool on any service bench. • Protective rubber boot • One year warranty MOUSER BK Precision Price Features: STOCK NO. Part No. Each • Measurement parameters:Z, L, C, DCR, 615-810C 810C 85.00 ESR, D, Q, ACV, DVC, ACA, DCA, and Ø • Test conditions: 100Hz, 120Hz, 1kHz, 10kHz, PRECISION 11,000 COUNT DUAL-DISPLAY 100kHz, 200kHz, 1Vrms, 0.25Vrms, 0.05Vrms • 0.1% basic accuracy HANDHELD CAPACITANCE METERS • Dual LCD display Features: • Very quick response, user friendly • 11,000-count resolution on primary display • Fully auto/manual selection • Bright LCD backlight • DC resistance measurement • Secondary readings D,Q • USB interface • 0.5% basic accuracy • Fast auto range design for rapid, easy component measurements • Relative mode • Visible and audible tolerance mode: 1%, 5%, 10%, 20% MOUSER BK Precision Price • Data Hold and Min/Max/Average recording STOCK NO.
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Troubleshooting & Repairing Switch Mode
Troubleshooting & Repairing Switch Mode Power Supplies Brought to you by Jestine Yong http://www.PowerSupplyRepairGuide.com Content Part I Introduction to SMPS 1. Introduction to Switch Mode Power Supplies (SMPS)………..9 2. Identifying Electronic Components in Different Types of SMPS with the Help of Photos…………………………………………14 3. Block Diagram of a Typical SMPS and How It Works………18 4. Easy Way To Understand The 11 Circuit Functions of SMPS With The Help Of Schematic Diagrams………………………24 4.1- Input Protection and EMI Filtering Circuit………...........26 4.2- Bridge Circuit………………………………………………27 4.3- Start Up and Run DC Circuit…….……………………….29 4.4- Oscillator Circuit…………………………………………..31 4.5- Secondary Output Voltage Circuit………………….........34 4.6- Sampling Circuit…………………………………………...36 4.7- Error Detection Circuit……………………………………38 4.8- Feedback Circuit…………………………………………...39 4.9- Protection Circuit ………………………………………….40 4.10- Standby Circuit ……………………………………..........50 4.11- Power Factor Correction (PFC) Circuit………………...56 5. Electronic Components Found In SMPS and Possible Causes…………………………………….………………...........62 6. How To Find The Right Equivalent Components In SMPS Circuit……..……………………………………………………..86 Part II Secrets of SMPS Troubleshooting Techniques 7. Recommended Tools and Test Equipment For Successful SMPS Repair………………………………...……….…………95 7.1-Isolation Transformer……………………………………..96 7.2-Variable Transformer……………………………………..98 7.3-AC Ammeter……………………………………………….100 7.4-Analog and Digital Multimeter…………………………...102 7.5-Digital Capacitance Meter………………………………..104 7.6-Blue ESR Meter…………………………………………...105 7.7-Blue Ring Tester…………………………………………..106 7.8-Oscilloscope………………………………………………..107 8. Safety Guidelines………………………………………………109 9. Understand The Six Common Problems Found In SMPS….115 9.1-No Power…………………………………………………..115 9.2-Low Output Voltage………………………………………117 9.3-High Output Voltage……………………………………...118 9.4-Power Cycling/Pulsating/Blinking……………………….118 9.5-Power Shutdown…………………………………………..121 9.6-Intermittent Power Problem……………………………...121 10.
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Anatek Comparison of ESR Meters
Anatek Comparison of ESR Meters To assist in your decision on which ESR meter to purchase, AnaTek evaluated and tested the six most popular meters on the market. We offer the three highest-rated meters, the Atlas ESR70 the Blue ESR/Low Ohms Meter and the Capacitor Wizard in our stores. These results come from tests performed on each of the units by AnaTek Instruments. The opinions given are those of the authors. We also attempted to evaluate the low cost meter supplied by MAT Electronics. Unfortunately that meter failed (broken battery contact) during our tests. The overall quality of this, and many, made-in-China meters are very poor and so we stopped the evaluation. The MAT meter is NOT RECOMMENDED. Atlas ESR70 EVB (SXX series) Blue ESR Capacitor Wizard Cap Analyzer 88A Tenma Very accurate for electrolytics >10 ufd. Measurement UsefulCapacitance Reads electrolytics Reads electrolytics Reads electrolytics accurately for > 10 ufd. Handles lower values 1 ufd to 22,000ufd accuracy is still good below Range accurately for >1ufd. accurately for >1ufd. >1ufd. but gives misleading readings. 10 ufd but the scale on the front can be misleading. ESR range ohms 0.01Ω to 40Ω 0.01 - 99 Ω 0.01 - 99 Ω 0.1 - 30 Ω 0.1 - 20 Ω 0.1 - 50 Ω DCR range ohms 0.01Ω to 40Ω 0.01 - 99 Ω 0.01 - 99 Ω 0.1 - 30 Ω 0.1 - 500 Ω 0.1 - 50 Ω Microcontroller analyzes capacitor using a combination of AC (100kHz) Microcontroller with Microcontroller with pulse - 100 Khz sinusoid.
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Component Test Equipment 1 T EST
49-2012:QuarkCatalogTempNew 9/20/12 1:18 PM Page 49 Component Test Equipment 1 T EST Digital LCR Meters & M Model 878B and 879B Hand-Held LCR Meters Models 885 (10 kHz) and 886 (100 kHz) EASUREMENT Synthesized In-Circuit LCR/ESR Meter B&K Precision’s 878B and 879B 40,000 count L/C/R hand-held meters are designed for measuring inductance, capacitance, and resistance components. Simple to operate, The Model 886 Synthesized In-Circuit LCR/ESR Meter is the first handheld meter the instruments not only take absolute parallel mode measurements, but also series of this type on the market, with a wide range of test frequencies up to 100 kHz mode measurements. The meters provide direct and accurate measurements of (Model 865 — 10 kHz; Model 866 — 100 kHz) and many measurement parameters inductors, capacitors, and resistors with different testing frequencies. Front panel push including Z, L, C, DCR, ESR, D, Q, and Ø as well. The 886 is designed for both buttons maximize the convenience of function and feature selection such as data hold, component evaluation on the production line and fundamental impedance testing maximum, minimum and average record mode, relative mode, tolerance sorting mode, for bench top applications. With a built-in direct test fixture, you can test the lead I frequency, and L/C/R selection. The test data can be transferred to PC through a mini components very easily. The optional 4-wire test clip can give a convenient NTERCONNECT USB connection with free downloadable software or with SCPI commands. connection to larger components and assemblies with the accuracy of 4-wire testing.
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Operation Manual Digital LCR- / ESR Multimeter with RS-232 C
PeakTech® 2155 Operation Manual Digital LCR- / ESR Multimeter with RS-232 C Contents 1. INTRODUCTION ...................................................................................................................................................................... 2 1.1 GENERAL .................................................................................................................................................................................................2 1.2 IMPEDANCE PARAMETERS .........................................................................................................................................................................3 1.3 SPECIFICATION .........................................................................................................................................................................................4 1.4 ACCESSORIES ........................................................................................................................................................................................12 2. OPERATION ........................................................................................................................................................................... 13 2.1 PHYSICAL DESCRIPTION ..........................................................................................................................................................................13 2.2 MAKING MEASUREMENT..........................................................................................................................................................................14
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Capacitor Analyzer (Capacitance and ESR Precision Meter) Analisador
Édson Pedro Cecílio Júnior Capacitor Analyzer (Capacitance and ESR Precision Meter) Analisador de Capacitores (Medidor de Capacitância e ESR de Precisão) Campinas 2020 ÉDSON PEDRO CECÍLIO JÚNIOR CAPACITOR ANALYZER (CAPACITANCE AND ESR PRECISION METER) ANALISADOR DE CAPACITORES (MEDIDOR DE CAPACITÂNCIA E ESR DE PRECISÃO) This dissertation is presented to the School of Electrical and Computer Engineering of the University of Campinas in partial fulfillment of the requirements for the degree of Master in Electrical Engineering, in the area of Electrical Energy. Dissertação apresentada à Faculdade de Engenharia Elétrica e de Computação da Universidade Estadual de Campinas como parte dos requisitos exigidos para a obtenção do título de Mestre em Engenharia Elétrica, na área de Energia Elétrica. Supervisor/Orientador: Prof. Dr. Hudson Giovani Zanin ESTE EXEMPLAR CORRESPONDE À VERSÃO FINAL DA DISSERTAÇÃO DEFENDIDA PELO ALUNO ÉDSON PEDRO CECILIO JÚNIOR E ORIENTADO PELO PROF. DR. HUDSON GIOVANI ZANIN Campinas 2020 Comissão Julgadora – Dissertação de Mestrado Candidato: Édson Pedro Cecilio Junior RA: 962208 Data de Defesa: 17 de Abril de 2020 Título da Tese: “Capacitor Analyzer (Capacitance and ESR Precision Meter)” “Analisador de Capacitores (Medidor de Capacitância e ESR de Precisão)” Prof. Dr. Hudson Giovani Zanin (Presidente, FEEC/UNICAMP) Prof. Dr. Gilmar Barreto (FEEC/UNICAMP) Dra. Francisca Elenice Rodrigues de Oliveira (USP/USP São Carlos) A ata de defesa, com as respectivas assinaturas dos membros da Comissão Julgadora, encontra-se no SIGA (Sistema de Fluxo de Dissertação/Tese) e na Secretaria de Pós- Graduação da Faculdade de Engenharia Elétrica e de Computação. Dedication I dedicate this work to my beloved little son Pedro, my wife Lidiane, my mother Teresinha and my deceased father Edson.
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WG K7204.Pdf
Assembly Manual ESR & Low Ohms Cat No. K 7204 Meter by Bob Parker ACN 000 908 716 Reproduced in part by arrangement Please read Disclaimer carefully as we with Electronics Australia, from their can only guarantee parts and not the January 1996 edition. labour content you provide. K I T If you repair switch-mode power supplies, TV receivers, computer monitors, vintage radios, or similar equipment, and/or if you need to measure very low values of resistance, this proj- ect can save you lots of time and aggravation - as it has for me. It measures an aspect of electrolytic capacitor performance which is very important, but normally very difficult to check: the equivalent series resistance, or ‘ESR’. ome wise person once said, “The can do is give a low reading if the elec- currents, the electrolyte will start to Sreliability of any piece of electronic tro is nearly open circuit. decompose and the dielectric may dete- equipment is inversely proportional to riorate - and the ESR will increase far the number of electrolytic capacitors in About ESR... more rapidly. it”, and I doubt that many service techni- To make things worse, as the ESR cians would disagree! So what exactly is an electrolytic’s increases, so does the internal heating Especially now that switch-mode equivalent series resistance? caused by ripple current. This can lead to power supplies (SMPSs) have been Electrolytics depend on a water-based commonly used in domestic VCRs and electrolyte, soaked into a strip of porous TVs, etc for a decade or so, one of the material between the aluminium foil most likely components to fail is the plates, to complete the ‘outer’ electrical humble electrolytic.
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Beautiful HI-Land Build: • Pro-Style ESR Meter / • K.I.S.S. Trickle
o o OO@ Build: • Pro-Style ~ ESR Meter / • K.I.S.S. Trickle ,,- Charger ..- Beautiful HI-land Unleash The Power R-605TQ VHF/UHF Dual-Band Mobile/Base Full 2 Meter/440 Performance DR-620T VHF/UHF • 100 memory ch.1nnels, + a -Ca'" ch.Jnnel for each band Dual-Band Mobile/Base •cress encoded+dN:OdN and tone scan • CrcJSj-band repeat iind full duplex capability First Amateur Twin Band Mobile To Support • 9600 bps packer ready with dedicated terminals Optional Digital Voice Communications' • Internal dup'e1Cer ~ one easy antenna connection • RX·VHF 136-173.995 MHz, UHF 42tJ...449.994 MHz • TX·VHF 144-147.995 MHz, UHF 430-449.994 MHz • RX·VHF 108·173.995 MHz, UHF 335-480 MHz • MARS capability (permit requim/) • TX-VHF 144-J47.995 MHz, UHF 430-449.995 MHz • OUTPUT HIL - 5015 watts VHF, 3515 watts UHF • Receives Airband and Wide FM • Time-out timer (ideal for repeaterand padcel • Front control unit separation (optional EDS-9 kit required) operation) • Advanced 10F3 digit." mode with speech compression technology (Ej.47U required)- • 200 memory channels • Advancrd EI·SOU TNC (optional) supports dig;-peat mode • Remote control features including parameter setting and direct frequency entry through the microphone DJ- V5TH VHF/UHF • Dual-Bimd receiver with VIU, VI¥, UlU capability Dual-Band FM Transceiver • CTCSS/Des encode/decode and European Tone..bursts 5 watts ofoutput power, in a compact package. • OUTPUT: HIMlL·50/10/5 watts VHF • Alphanumeric Display, up to 6 characters • OUTPUT: HIMlL·35/JO/5 watts UHF • TX·VHF 144·147.995 MHz, UHF 420449.995 MHz • 200 memory channels plus two call channels • Full VHF + UHF Amaleur Band Coverage • Receive Range, (76 • 999MHz) Ask your dealer includes Wide FM capability • Up to 5 W.1tts output, 3 output settings about the full line of •crcss encode+decode DrMF squelch and Iron Horse antennas & European Tone bunts accessories! • 4 scan modes,.
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