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1A, TT 0-1000 V 2 AG, SLO BLO 500 mA RANGES: 1pF to 20 F, 0.1 µH to 20 H Patent Nos. 4258315, 4267503, 4795966, 4825147, 5717338, Others Pending PULL CHART 3200 Sencore Drive, Sioux Falls, SD 57107...
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WARNING LEASE OBSERVE THESE AFETY RECAUTIONS There is always a danger present when using electronic test equipment. Unexpected high voltages can be present at unusual locations in defective equipment. Every precaution has been taken in the design of your instrument to insure that it is as safe as possible.
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LC103 “ReZolver”™ Capacitor & Inductor Analyzer Operation and Application Manual 3200 Sencore Drive, Sioux Falls, SD 57107...
TABLE OF CONTENTS Inductor Ringer Test........... 26 SAFETY PRECAUTIONS ..Inside Front Cover Error Messages ........... 27 RS-232 OPERATION ......... 28 DESCRIPTION Connecting to the Computer....... 28 Introduction ............4 Sending Data to the LC103 ......... 28 Features ..............4 Component Type Commands......
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Ringing Deflection Yokes........ 43 Transmission Cable Testing........ 43 Testing Coaxial Cable ........43 Determining a Cable’s Length or Distance to an Open......... 44 Locating a Short in Coaxial Cable ...... 44 Determining Capacitance and Inductance Per Foot ............45 Identifying Aging Cable ........45 Testing High Voltage Diodes.......
DESCRIPTION INTRODUCTION Capacitors and inductors are widely used in electronic The Sencore LC103 ReZolver takes the guesswork out systems. Capacitor and inductor usage continues to of capacitor and inductor testing. It provides in-circuit increase since neither of these components can be capacitor value and ESR tests along with automatic out- physically incorporated into ICs on a broad basis.
SPECIFICATIONS IN-CIRCUIT TESTS EQUIVALENT SERIES RESISTANCE (ESR) (Capacitors and Inductors) (U.S Patent #4,795,966) Dynamic in-circuit tests to determine whether the ACCURACY: +/-5%; +/-l digit capacitor or inductor is good or bad. CAPACITOR RANGE: 0.01 uF to 19.99 F COMPONENT TYPES: Electrolytic, double layer lytic, RESOLUTION AND RANGES: 0.1 ohm to 1999 ohms, tantalum, ceramic, and other capacitors.
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SPECIFICATIONS CONTINUED DISPLAY COMPONENT TEST RESULTS TYPE: 2 x 17 Alphanumeric Vacuum Fluorescent READINGS: Fully autoranged with auto decimal placement. One or two place holding zeros added as needed to provide standard value readouts of pF, uF, uH, or mH. COMPONENT SETUP TYPE: 2 x 20 Alphanumeric Vacuum Fluorescent READINGS: All component types, component value,...
LC103 CAPACITOR & INDUCTOR ANALYZER COMPONENT SETUP COMPONENT TEST RESULTS Ω Alum Lytic 102.6 0.89 μ μ POWER HOLD FOR BATTERY +20% -20% GooD TEST COMPONENT TYPE COMPONENT PARAMETERS COMPONENT TESTS NUMERIC INPUT ENTER IN-CIRCUIT OUT-OF-CIRCUIT DOUBLE HIGH R CAPACITOR CAPACITOR ALUMINUM µF...
REAR PANEL FEATURES Fig. 2: Location of rear panel features. 1. BATTERY COMPARTMENT COVER – 3. POWER ADAPTER Jack – Connects to supplied Provides access to the (optional) BY289 PA251 POWER ADAPTER for 110 VAC operation, rechargeable battery. or (optional) PA252 for 220 VAC operation. 2.
OPTIONAL ACCESSORIES 1. Test Lead Adapter (39G144) – Use to adapt Out- of-Circuit Test Leads to large, screw terminal 6. SCR/TRIAC Test Accessory (SCR260) – Use to capacitors. test SCRs and TRAICs. 2. 220 VAC Power Adapter/Charger (PA252) – 7. Carrying Case (CC254) – Provides protection and Plugs into POWER INPUT to power the unit from easy carrying for the LC103 and its accessories.
———————— WARNING ————————— ———————— ATTENTION ———————— Only use a Sencore PA251 or PA252 Power Adapter La LED d’indication d’erreur doit clignoter pour for AC operation. Using an AC adapter other than quelques instants lorsque le bouton de marche/arêt the PA251 or PA252 may cause damage to the est utilize pour la mise en marched u LC103.
BATTERY OPERATION The LC103 is designed to operate as a completely 4. Do not drop the battery. While lead-acid batteries are well sealed, they may break if dropped or subjected to portable unit with the optional BY289 rechargeable a strong mechanical shock. If the battery does break battery installed.
Battery Test To operate the LC103 using the optional BY289 battery: 1. Install the BY289 battery into the LC103 battery The LC103 has a built-in battery test feature that shows compartment. the remaining battery charge. A reading of 100% NOTE: If you are using the BY289 for the first time, indicates that the battery is fully charged.
STOP TESTING INDICATIONS The LC103 is designed to provide you with the safest terminals or remove the voltage from the circuit possible method of testing capacitors and inductors. The points the test leads are connected to. STOP TESTING indicators of the LC103 are a flashing Replace the Lead Fuse if blown (see below).
———————— WARNING ————————— Do not use the Adjustable In-Circuit Test Probe (AP291) to perform the Leakage test. Always use the Test Leads (39G219) when performing the Leakage test. ———————— ATTENTION ———————— Ne pas utiliser la sonde adjustable pour les test en circuit pendant le test de fuite.
ENTERING COMPONENT DATA LC103 CAPACITOR & INDUCTOR ANALYZER COMPONENT SETUP COMPONENT TEST RESULTS Ω Alum Lytic 102.6 0.89 μ μ POWER HOLD FOR BATTERY +20% -20% GooD TEST COMPONENT TYPE COMPONENT PARAMETERS COMPONENT TESTS NUMERIC INPUT ENTER IN-CIRCUIT OUT-OF-CIRCUIT DOUBLE HIGH R CAPACITOR CAPACITOR...
To enter component tolerance: ALUMINUM a. Enter Component Type LYTICS Enter a 1, 2, or 3 digit number up to 100 which equals the “+” value tolerance of the capacitor or LC103 CAPACITOR & INDUCTOR ANALYZER COMPONENT SETUP COMPONENT TEST RESULTS inductor under test.
IN-CIRCUIT CAPACITOR TESTING The LC103 dynamically tests and measures capacitors Note: The TEST ACTIVATION button on the probe can greater than 0.002 uF in-circuit for value and greater be used if a capacitor COMPONENT TYPE is selected. than 0.02uF for value and ESR. Two checks for parallel components that may upset the measurements are also Automatic EIA GOOD/BAD Testing performed.
OUT-OF-CIRCUIT CAPACITOR TESTING COMPONENT TYPE COMPONENT PARAMETERS COMPONENT TESTS NUMERIC INPUT ENTER OUT-OF-CIRCUIT DOUBLE HIGH R ALUMINUM μF CAPACITOR CAPACITOR LAYER DOUBLE LYTICS VALUE LYTICS LAYER TANTALUM CERAMIC DIELECTRIC CAPACITOR OTHER CAPS CAPS ABSORPTION LEAKAGE CAPS Fig. 13: Controls used for out-of-circuit capacitor tests. The LC103 ReZolver checks capacitors out-of-circuit for For automatic GOOD/BAD testing, you first enter the value from 1.0 pF to 20 F in 12 automatically selected...
for aluminum electrolytic capacitors, and Table 2 for Measuring Capacitor Dielectric Absorption tantalum capacitors. These values are worst-case Dielectric Absorption is often called “battery action” or conditions as defined by the EIA. Some circuits may “capacitor memory” and is the inability of the capacitor malfunction due to a capacitor’s increasing ESR even if to completely discharge.
from the test leads. All data input and test buttons will be To measure capacitor leakage: Connect the capacitor to the test leads. If the locked out until the display returns to “Ready.” capacitor is polarized, connect the red test clip to the “+”...
AUTOMATIC GOOD/BAD CAPACITOR TESTING CAPACITOR TYPE TESTS TO PERFORM Value Leakage Aluminum Lytic Double Layer Lytic Tantalum Ceramic All other caps (paper, film, mylar, etc.) Table 6 - The LC103 will provide an automatic GOOD/BAD test of the capacitor parameters shown here. The LC103 ReZolver can automatically display a however, do not need to be entered for automatic “GOOD/BAD”...
IN-CIRCUIT INDUCTOR TESTING The LC103 provides an in-circuit inductor value test for To value test an inductor in-circuit: inductor values from 3.18 uH to 3.18 H. When this test Connect the in-circuit test probe. is performed, the LC103 also checks for parallel Zero the test probe.
Compare the number of rings to a known in the LC103 display. A shorted turn will lower the Q of good coil. The patented Sencore Ringing test is based the coil, causing the LC103 display to read “BAD” and on the Q of the coil.
ERROR MESSAGES Several error conditions may occur while using the Value Beyond Zeroing Limit - The amount of LC103 which cause an error message to appear in the inductance or capacitance at the TEST LEAD INPUT is COMPONENT TEST RESULTS display. These are beyond the range of the zeroing circuits.
RS-232 OPERATION All of the LC103 ReZolver tests may be totally is able to send any values or tolerances needed for automated or incorporated into a computer controlled, good/bad testing comparisons and can select any of the automated test system using an RS-232 serial interface. ReZolver test functions.
The codes may be sent by the computer as either upper duplicate the non-RS-232 operation of the component or lower case letters. parameters keypad for entering component data. All data sent to the LC103 must end with a carriage As with manual operation, each Value Multiplier return character, to be recognized by the LC103.
The amount of Component data which needs to be power supply automatically removes voltage from the entered with the RS-232 Value Multiplier codes for a test leads when the computer sends any other listener GOOD/BAD test depends on the LC103 function. The code, or when the front-panel button is pressed.
The LC103 must subtract residual effects of the test ———————— IMPORTANT ———————— leads when testing ESR, and small capacitor or inductor Do not disconnect or connect any components to the LC103 after performing any capacitor or inductor test values. The Lead Zero (LDO) and Lead Short (LDS) without first sending a No Function Command (NFC) or listener codes duplicate the operation of the front panel other command to clear the test function.
The four fields of the data string are: 1. Header, 2. been collected from the LC103 to avoid an error from Numerical Data Field, 3. GOOD/BAD Indicator, and 4. causing unexpected results. The software can either End Terminator. Each field has the same number of report the error or skip over it, but should do one or the characters for all test functions, allowing the same other without crashing the program.
Making Leakage Tests Making ESR Tests When testing for leakage on large capacitors, the first The capacitor test for Equivalent Series Resistance may reading returned by the LC103 may be outside the cause unexpected program errors if your software does normal leakage limits because the capacitor is charging.
APPLICATIONS INTRODUCTION The procedures explained in the OPERATION section applications of the unit. This section will provide you of this manual explain how to use the LC103 ReZolver. with further information on using the LC103 features for Once you become familiar with the basic operation of extended capacitor and inductor tests, as well as other the ReZolver, you will discover many additional special applications.
Aluminum Electrolytics While they may have many shapes, tantalum capacitors always have polarized leads. Lead polarization is often Aluminum electrolytic capacitors (ALUMINUM the only way to distinguish a tantalum lytic from another LYTICS) are the easiest capacitor type to identify. They type of capacitor.
Double Layer and “High R” Electrolytics look the same as resistors and inductors which also use the same case type. You can easily determine if the Double layer electrolytic capacitors are commonly component is a resistor, capacitor or inductor from its known by trade names such as “Supercap”...
IDENTIFYING INDUCTOR TYPES Inductors, like capacitors, may be found in many shapes Q and absorbs all ringing energy, power transformers and sizes depending on the application in which they are cannot be tested with the LC103. used. The LC103 will provide an accurate Ringer test on Switching transformers, on the other hand, are much all types of air core and ferrite core inductors, provided smaller and lighter than power transformers.
IDENTIFYING UNKNOWN COMPONENTS Occasionally you may encounter small value inductors You can use the LC103 tests to sort these component and axial lead ceramic capacitors which look like the types from each other. Figure 28 shows, in flow chart more common axial lead film resistor. If these form, the procedure you need to follow.
When possible, power the LC103 with the PA251 AC Some circuits require capacitors with less ESR than Power Adapter connected to a properly grounded AC the EIA specifies. When testing these capacitors, the outlet. The PA251 Power Adapter maintains the third LC103 may show a “GOOD”...
Testing Non-Polarized (Bi-Polar) Electrolytics Connect one end of a short jumper to the common terminal of the capacitor. Non-polarized aluminum electrolytic capacitors typically While pressing the CAPACITOR LEAKAGE button, look very similar to standard aluminum electrolytics connect the other end of the jumper to each of the except polarity marking.
INDUCTOR TESTING The In-Circuit Inductor Test if it rings ten or more. However, if it rings less than ten, remove the metal shield, if possible, and test the coil The LC103 ReZolver can be used to measure the again. If it now rings 10 or more, the coil is good. If you inductance of a coil with the component still in circuit.
A few flybacks used in some small solid state chassis supply to make sure none of them are shorted or have a low impedance primary which will not ring when leaky. good. However, these flybacks will always have a 5. If all the loads are disconnected and the ringing test secondary winding which will ring good if the still indicates BAD, completely remove it from the transformer is good.
Ringing Deflection Yokes To test horizontal yoke windings: Remove power from the chassis. Video deflection yokes are special inductors which are Disconnect the yoke from the circuit by pulling the used to move a CRT electron beam both vertically and yoke plug or unsoldering the wires.
You can also use this test to determine the length or to Determining a Cable's Length or Distance to an Open pinpoint a break in multi-conductor cable that has 3 or A length of coaxial cable open at both ends is equivalent more conductors.
Therefore, to calculate the distance to a short you must conductors becomes contaminated causing a change in first use a sample length of cable to determine the the cable's capacitance and the DC leakage through the inductance per foot value, as explained in the following dielectric.
TESTING HIGH VOLTAGE DIODES High voltage diodes, such as those found in video high ———————— ATTENTION ———————— voltage and focus voltage sections may require up to 200 Le LC103 est fait pour être utilisé par une personne volts before they are forward biased and begin to qui est techniquement capable et qui comprend les conduct.
AC power transformers should be tested to make sure other LC103 lead to one of the secondary leads. If the they provide proper isolation from the AC line. transformer has more than one secondary winding, each Transformers should be tested for leakage between the should be tested for leakage.
APPENDIX INTRODUCTION The capacitor is one of the most common components other. The following is a brief explanation of the used in electronics, but less is known about it than any capacitor, how it works, and how it fails. CAPACITOR THEORY The basic capacitor is a pair of metal plates separated by the capacitor had been charged to before we had an insulating material called the dielectric.
CAPACITOR TYPES There are many different types of capacitors, using the same capacity and working voltage than an different types of dielectrics, each with its own best aluminum lytic. Tantalum lytics are popular in circuits capability. When replacing capacitors, it is best to where high capacity and low leakage is required.
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Temperature Coefficient Temperature Coefficient Temperature Coefficient Temperature Coefficient Capacitance Change Capacitance Change vs. Temperature vs. Temperature -1.0 -2.0 -3.0 -4.0 -55 -45 -35 -25 -15 -5 15 25 35 45 55 65 75 85 95 105 115 125 -55 -45 -35 -25 -15 -5 15 25 35 45 55 65 75 85 95 105 115 125 Temperature C Temperature C...
CAPACITOR FAILURE MODES An ideal capacitor is defined as “a device consisting of Electrolytic capacitors are another example of capacitors two electrodes, separated by a dielectric, for introducing that can change value in circuit or on the shelf. As these capacitance into an electric circuit”.
Leakage One of the most common capacitor failures is caused by Cathode Lead current leaking through the capacitor. Some capacitors Resistance will show a gradual increase in leakage, while others will change rapidly and even short out entirely. In order to effectively test a capacitor for leakage, it is necessary Cathode Lead-To-Plate...
GLOSSARY Aging - operating a component or instrument at in a percentage of the original charge. Also called controlled conditions for time and temperature to screen "Capacitor Memory" or "Battery Action". out weak or defective units and, at the same time, stabilize the good units.
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GLOSSARY Henry - The unit of the measure of inductance. Also expressed in microhenry and millihenry. Power factor - the ratio of the effective resistance of a capacitor to its impedance. Inductor - a device consisting of one or more windings with or without a magnetic material core or that Reactance - the opposition of a capacitor or inductor to introduces inductance into a circuit.
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Save the original shipping carton and packing material for reuse should you ever need to ship your unit, or return it to the Sencore factory for repair. If the original materials are unavailable or unfit for reuse, repack the unit according to the following directions.
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3200 Sencore Drive Sioux Falls, SD 57107 Innovatively designed Call 1-800-SENCORE (736-2673) with your time in mind. www.sencore.com Form6808A Printed in the U.S.A.
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