Geräte Informationen:

Sencore LC77 Analyzer
Hersteller:
Sencore
Modell: LC77
Datum:
Kategorie: Messgeräte
Gruppe: Analyzer
Beschreibung: Auto-Z Capacitor Inductor Analyzer
Informationen:
                                    Capacitor and inductor usage is extensive, encompassing
all facets of industrial and consumer electronics.
Very few circuits lack either of these components. Because
the transistor gave way to the IC, and the IC
gave way to the LSIC, capacitor and inductor usage
continues to increase rapidly since neither of these components
can be physically incorporated into ICs on a
broad basis.. Though they have changed some in physical
size, capacitors still perform the same basic functions.
But in today's circuits, more than ever before,
the tolerances and parameters of capacitors and inductors
are critical to proper circuit operation.
Capacitor value and tight tolerance is just one important
parameter. In today’s high performance circuits,
leakage, dielectric absorption, and ESR are necessary
indicators of a capacitor’s ability to perform properly
in circuit. Inductors too, require tight tolerances and
quality checks. Unless all of these parameters can be
thoroughly analyzed, troubleshooting becomes a guessing
game.
The Sencore LC77 “AUTO-Z” takes the guess work out
of capacitor and inductor testing. It provides automatic
tests of capacitor value, leakage, ESR, and a patented
dielectric absorption test. Inductors are automatically
analyzed for value and quality with patented tests. The
LC77 is a complete, automatic, microprocessor-controlled
capacitor and inductor analyzer. Its features make
it ideally suited for both single component analyzing
in service or maintenance work, or for large volume
batch testing in a lab or incoming inspection.
Features
The Sencore LC77 “AUTO-Z” is a dynamic, portable,
automatic capacitor and inductor tester. It is designed
to quickly identify defective components by simply connecting
the capacitor or inductor to the test leads and
pushing a test button. The test result is readily displayed
on an LCD readout in common terms. All
capacitor and inductor test results may also be displayed
as good/bad compared to standards adopted by
the Electronic Industries Association (EIA). User defined
limits may also be programmed into the LC77 for
the good/bad comparison.
In addition to testing capacitors for value up to 20
Farads, the LC77 checks capacitors for leakage a t their
rated working voltage, up to 1000 volts. ESR is checked
with a patent-pending test, and an automatic, patented
test checks capacitor dielectric absorption. A patented
inductance value test provides a fast, accurate test of
true inductance. A patented ringing test checks coils,
deflection yoke, switching power supply transformers,
and other non-iron core inductors with a fast, reliable
good/bad quality test.
Automatic lead zeroing balances out test lead capacitance,
resistance, and inductance for accurate readings
on small capacitors and inductors. The LC77 is protected
from external voltages applied to the test leads
by a fuse in the TEST LEAD JACK and special circuitry
which locks out all test buttons when voltage is sensed
on the test leads.
Battery operation makes the LC77 completely portable
for on-location troubleshooting in all types of servicing
from industrial equipment to avionics to cable fault
locating. An optional SCR & Triac tester extends the
LC77 test .capabilities to provide a fast, accurate test
of these components. The LC77 may be interfaced into
any IEEE 488 Bus system for fully automatic, computer
controlled testing in a laboratory or incoming inspection
area.

Folgende Anleitungen sind für obiges Gerät verfügbar:

Sencore -- LC77 -- Bedienungsanleitung
Dateiname: Sencore-5934-Manual-Page-1-Picture
Dokumenttyp: Bedienungsanleitung
Seitenanzahl: 72
Dateigröße: 7.23 Mbytes (7578959 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 3584
Datum:
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: 2b5062b8d1b9d3ad30c601526f75f98e
ed2kID: 86d8d51d914f93f6d5c91d5995cdf420
Downloads: 178 seit 04 Mai 2014
Informationen:
Operation, Application, and Maintenance Manual

SAFETY PRECAUTIONS ............. Inside Front Cover
SIMPLIFIED OPERATIONS ............... ...................... 4
DESCRIPTION
Introduction ........................................... .. 6
Features
............................................................. ...........6
Specifications....................................................
6
Controls .................. ............................. 8
Rear Panel Features ................................. 10
Supplied Accessories .................................
.............10a
Optional Accessories..................................... .. 10b
OPERATION
Introduction . ................... . . . . . . . . . . . . .
. . . . . . 12
AC Power Operation
............................................ 12
Battery Operation .............................12
Battery Test ..
............................................. .. 13
Recharging the Battery .......................... .. 14
Auto O f f
..............................................................
. 14
Test Leads........................
........................................1 4
Test Lead Mounting Clip . . . . . . . . . . . . . . . . . . 15
Test Lead Adapter. . . . . . . . . . . . . . . . . . . . . .
. 15
Test Lead Fuse . . . . . . . . . . . . . . . . . . . . . . .
. . 15
Lead Zeroing ................................... 16
Entering Component Data . . . . . . . . . . . . . . . . . .. 16
Error Codes . . . . . . . . . . . . . . . . . . . . : . . .
i . . • 18
Capacitor Testing . . . . . . . . . . . , . . . . . . . . .
. . . . . 19
Capacitance Measurement Accuracy . . . . . . . . 19
Measuring Small Capacitance Values in
Noisy Environments . . . . . . . . . . . . . . . . . . . . . 20
Capacitor Parameter Testing................. .. 20
Measuring Capacitor Value . . . . . . . . . . . . . . . . 20
Measuring Capacitor Dielectric Absorption . . . . 20
Measuring Capacitor Leakage (Microamps) . . . 21
Paper, Mica and Film Capacitor......... 22
Ceramic Capacitors .......................... ...............22
Aluminum Electrolytics : ................................. 22
Tantalum Electrolytics . ....................................22
Non-polarized Electrolytics . . . . . . . . . . . . . . 22
Leakage Charts................... . . . . . . . . . . . . . . 22
Aluminum Electrolytics . ................................. 23
Tantalum Electronics......................................24
Measuring Capacitor Leakge (ohms) ........... .... 24
Measuring Capacitor ESR ....................................25
Capacitor Automatic Good/Bad Testing ......... .. 26
Inductor
Testing........................................................
29
Balancing Out Lead Inductance ........................ 29
Inductor Value Testing ........................ . . . . 30
Inductor Automatic Good/Bad Testing . . . . . . . . . . 30
Checking Inductors with the Ringer Test .........30
Good/Bad Inductor Value Testing . . . . . . . . . . . 31
IEEE 488 BUSS OPERATION ...................................31
Connecting the LC77 for IEEE Operation.............31
Sending Data to the LC77
..................................... .. 32
Component Type Commands ...................... 33
Value Multipliers .
................................................ 33
Test Function Commands ............. .. 34
General Commands ............................................35
Reading Data from the LC77
................................... 35
Data
Format............................................................36
Separating Data Fields
....................................... 36
Advanced Programming Ideas .............................. 37
Error Testing
....................................................... • 37
Good/Bad Results
.............................................. . 37
Shorted Capacitors
.............................................. 38
Open Inductors , . . . . . . . . . . . . . . . . . . . . . .
. . 38
Making Leakage Tests with IEEE ...................... 38
Making ESR Tests with IE E E ............................ 38
Programming Examples
............................................39
Sending Listener Codes ..................................... 39
Sending Talker Codes......................................... 39
Sample Programs
................................................ 40
APPLICATIONS . . . . .............
............................44
Introduction
.................................................................44
Indentifying Capacitor
Types................................... ,44
Aluminum Electrolytics
........................................45
Tantalum Electrolytics .....................................
.. 45
Double Layer Electrolytics .. . . ..........................46
Ceramic Capacitors...................
..........................46
: Ail Other Capacitors ..........................
.................47
Identifying Inductors Types
......................................47
Yokes and Flybacks . . . . . . . .............................47
Switching Transformers .
......................................47
Coils.";. . . . . . . . . . . . .
..........................................48
Identify Unknown Components . ...........................t 48
Capacitor Testing Applications ...............................49
Interpreting Capacitor Value Readings.............49
Dielectric Stress . . . .. . . ................. .. 49
Checking Leakage in Multi-Section Lytics . . . . 49
Intermittent Capacitors
........................................50
Checking Ceramic Temperature
Characteristics........................
.............................. 50
Checking Capacitance of Silicon Diodes
and Transistors ...........
.......................................50
Testing High Voltage Diodes .. . ........................51
Reforming Electrolytics ...........
............................51
Inductor Testing Applications
................................... 52
Testing Inductors In-Circuit....
..............................52
■v - Mutual inductance . . . . . . .
............................... 52
Ringing Peaking
Coils......................................... 52
Ringing Metal Shielded Coils ............................ 53
Ringing Flyback Transformers .......................... 53
Ringing Deflection Yokes ................................... 54
Note on Solid State Yokes & Flybacks.............55
Sencore-5934-Manual-Page-1-Picture
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