Good Will Instrument GOS-310 User manual

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75mm OSCILLOSCOPE
MODEL: GOS-310
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TABLE OF CONTENTS
ECDECLARATION OF CONFORMlTY ...................................................................................................................... 3
FOR UNITEDKINGDOM ONLY .................................................................................................................................... 4
1.FEATURES AND SAFETY TERMS .............................................................................................................................. 5
II.SPECIFICATI0NS ........................................................................................................................................................ 7
III.PANEL CONTROLSAND FUNCl'IONS .............................................................................................................. 10
IV . GENERALEQUIPMENT SAFETY ....................................................................................................... - .............. 12
V.SPEC1.LSAFETY NOTES ABOUT YOUR OSCILLOSCOPE
............................................................................. 12
M . PRECAUTIONS TOPROTECT YOUR OSCILLOSCOPE ................................................................................... 13
W . GENERAL OPERATION ........................................................................................................................................ 14
1 . INITIAL SET.UP ........................................................................................................................................................ 14
2 . USING DEFFREBT TRIGGERINGMODES .................................................................................................................... 14
Vm . APPLICATIONS ..................................................................................................................................................... 16
1 . DC VOLTAGE MEAsUREMENT .......................................................................................................................... 16
2 . PEAK-TO-PEAKVOLTAGE -s .......................................................................................................... 17
3 . PEAK-TO-PEAKVOLTAGEMEASUREMENTS (OW OF RANGE) .................................................................................... 18
4 . WAVEFORMPERIOD -s ..................................................................................................................... 18
5 . OW-OF-RANGE PERIOD -S ................................................................................................................. 20
6
. PHASE DIFFERENCE
(POINT-m ~OD) ...................................................................................... 20
7
. COMPARATIVE FREQUENCY -S AND PBASE COMPARISONS .................................................................. 21
M . GENERALADJUSTMENTS AND CHECKS ........................................................................................................ 24
1 . PROBE COMPENSATION ........................................................................................................................................ 24
2
. HORIZONTAL TRACE ALIGNMENT wrr~ GRATICULE .................................................................................................. 24
3 . QUICK CALIBRATIONCHECK .................................................................................................................................... 24
4 . CASE REMOVAL ....................................................................................................................................................... 25
5 . FUSE REPLACEMENT ................................................................................................................................................ 25
6 . CHANGINGVOLTAGE OF OPERATION ........................................................................................................................ 26
7
. POWER SUPPLY VOLTAGECHECKS ........................................................................................................................... 26
8 . A~~IGMATISM AD- ..................................................................................................................................... 27
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............................................................................................................................................................... 9 . CI~NINC; 27
................................................................................................................. X . VERTICAL CIRCUITS ADJUSTMENTS
27
I . DC BALANCE AD.WST~NI' ................................................................................................................................... 27
2
. HIGH FREQUENCYCOMPENSATION ........................................................................................................................... 27
3 . VERTICALGAINCALIBRATION ................................................................................................................................ 28
4 . VERTICALPOSITION CE~KING .............................................................................................................................. 28
5 . VERTICALFREQUENCYCOMPENSATION .................................................................................................................... 28
...........................................................................................................
XI . HORIZONTAL CIRCUIT ADJUSTMENTS
29
I . HORIZONTAL VAIUABW RANGE ADJUSTMENT .......................................................................................................... 29
2 . TIME BASECALIBRATION ......................................................................................................................................... 29
3 . HORIZONTN~POS~IONADJUSTMENT ....................................................................................................................... 29
4 . EXTERNALHORJZONTAL EXT SENSITIVITY AND POSITIONADJUSTMENTS ................................................................. 30
5 . TRIGGERING STABILITY ADJU.STMENT ..................................................................................................................... 30
...................................................................................
XII . CALIBRATE SIGNAL ADJUSTMENT ............................. ,
31
1 . C~LIBRATESIGNALFREQUENCYADJUSTMENT .......................................................................................................... 31
2 . CALIBRATESIGNALVOLTAGE ADJUSTMENT ............................................................................................................. 31
XI11 . SCHEMATICS ...................................................................................................................................................... 32
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EC Declarationof Conformity
We
GOODWILL INSTRUMENT CO.,LTD.
(1) NO. 18, Lane 54, Chung ChengRd., Hsin-Tien City, Taipei Hsien, Taiwan, R.O.C.
(2) Plot 522, LorongPerusahaan Baru 3, Prai Industrial Estate, 13600 Prai, Penang, Malaysia
declareunder sole responsibilitythat the
GOS-310
meets the intent of Directive 891336EEC ; 921311EEC ; 93168lEEC for Electromagnetic Compatibility
Compliance
was demonstratedto the followingspecifications as listed in the industrial Technology
Research institute
ENSOMI-1: Ebectramajpetic compahii +
(1992) Generic emission sandatd
Part I. Restdeartial commerciaf and Light ind#.ry
EN50082-1: Electromaggetic cmn@bility -
(1 992) Genoffic immunity standard
Part I: Redentiah commerciaf and Light ~ndus~y
Conducted Emission
Radiated Emission
Current Harmonics
Voltage Fluctuations
Low Voltage
Directive
EN 55022 class B
(1994)
ElectrostaticDischarge
Radiated
Immunity
Electrical Fast Transients
Surge
Immunity
Voltage Diphtemrption
EN 61000-3-2
EN 61000-3-3
EN 61010-1
(1995)
(1987)
(1993)
IEC 1000-4-2
lEC 1000-4-3
IEC 1000-4-4
IEC 1000-4-5
ESJ 61000-4-1 1
(1995)
(1995)
(1995)
(1995)
(1994)
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