YOKOGAWA TY710 User manual

IM TY720
4th Edition
Jan. 2011(KYOU)
Japanese/
English
この取扱説明書は，いつでも使用できるよう
大切に保管してください。
Store this manual in a safe place for future reference.
TY710, TY720
Digital Multimeter
ディジタルマルチメータ
User's
Manual
保証書付

57
Thank you for purchasing our Model TY710, TY720 Digital Multimeter.
This user’s manual describes the specifications and handling precaution for this Digital
Multimeter.
Before using this Digital Multimeter, thoroughly read this manual to get a clear understanding
on proper use.
Always observe the following instructions.
Failure to do so may impair the protection provided by the instrument and probes, and may
result in electrical shock or other dangers that may lead to serious injury or the loss of life.
Yokogawa is in no way liable for any damage resulting from the user’s mishandling of the
product.
For safe use of this product, the following safety symbols are used on the product:
nAbout This Manual
• Everyefforthasbeenmadetoensureaccuracyinthepreparationofthismanual.
However, should any errors or omissions come to the attention of the user, please contact
Yokogawa.
• Thecontentsofthismanualaresubjecttochangewithoutpriornoticebecauseof
improvement in performance or function.
• Allrightsreserved.Nopartofthismanualmaybereproducedinanyfromwithout
Yokogawa's written permission.

58
Regarding Safe Use of This Product
For safe use of this product, the following safety symbols are used on the product and manual:
WARNING
This indicates that the operator must refer to an explanation in the
instruction manual in order to avoid the risk of serious injury or the loss
of life.
CAUTION
This indicates that the operator must refer to an explanation in the
instruction manual in order to avoid the risk of injury or damage to the
product.
Note This indicates information that is essential for handling the instrument
or should be noted in order to familiarize yourself with the instrument’s
operating procedures and/or functions.
Danger! Handle with Care
This symbol indicates that the operator must refer to an explanation in the
instruction manual in order to avoid risk of injury or death of personnel
or damage to the instrument.
Double Insulation
This symbol indicates double insulation or reinforced insulation.
Direct Current
This symbol indicates DC voltage/current.
Alternating Current
This symbol indicates AC voltage/current.
DC/AC
This symbol indicates AC and DC.
Fuse
This symbol indicates a fuse.
Battery
This symbol indicates a battery.
Ground
This symbol indicates ground (earth).

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WARNING
nAlways observe the following instructions. Failure to do so may result in
electrical shock or other dangers that may lead to serious injury or the loss of
life.
Testing leads / Testing leads with alligator clip(optional accessory)
• UsetheprobessuppliedbyYokogawawiththisinstrument.
• Donotusetestingleads/testingleadswithalligatorclipthathave deterioratedorare
defective.
Check testing leads/testing leads with alligator clip continuity.
• Disconnect testing leads/testing leads with alligator clip from the circuit under test before
opening the casing to replace the batteries or for any other reason.
• Disconnect testing leads/testing leads with alligator clip from the circuit under test before
attaching/detaching the testing leads/testing leads with alligator clip to/from the instrument.
• Disconnecttestingleads/testingleadswithalligatorclipfromtheinstrumentbeforeopening
the casing to replace the batteries or for any other reason.
• Acapisprovidedonthetipofatestinglead.
Useatestingleadwiththecaponforsafety(safetystandards:EN61010-031).
•Do not use the alligator clip of testing leads being loosen or removed conditions.
Casing
• Donotusetheinstrumentifthereisanydamagetothecasingorwhenthecasingis
removed.
Fuses
• Usefusesofthespeciedratingwhenthefuseisreplaced.
Operating Environment
• Do not operate the instrument in an atmosphere where any ammable or explosive gas is
present.
• Avoid using the instrument if it hasbeen exposed to rain or moistureor if your hands are
wet.
Disassembly
• Noperson,exceptpersonnelfromYokogawa,isauthorizedtodisassemblethisinstrument.

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Concernant l’usage en toute sécurité de ce produit
Symboles utilisés sur les appareils et dans le manuel d’instruction:
Avertissement
Indique un danger. Attire l’attention sur une utilisation quipourrait
engendrer des accidents susceptibles de provoquer des blessures qui
peuvent éventuellement s’avérer mortelles.
Attention
Indique un danger. Attire l’attention sur une utilisation qui pourrait
engendrer une blessure personnelle et/ou être préjudiciable au produit.
Remarque Indique les informations essentielles à la manipulation de l’instrument
ouquidoiventêtreprisesencompteandevousfamiliariseravecles
procédures d’utilisation et/ou les fonctions de l’instrument.
Danger ! Manipuler avec soin.
Ce symbole indique que l’opérateur doit se reporter à une explication
donnéeparlemanueld’instruction,and’évitertoutaccidentsusceptible
de provoquer des blessures au personnel qui peuvent éventuellement
s’avérer mortelles, ou de protéger l’appareil.
Double isolation
Ce symbole indique une double isolation ou une isolation renforcée.
Courant continu
Ce symbole indique une tension/intensité C.C.
Courant alternatif
Ce symbole indique une tension/intensité C.A.
C.C./C.A.
Ce symbole indique le C.A. et le C.C.
Fusible
Ce symbole indique un fusible.
Batterie
Ce symbole indique une batterie.
Masse
Ce symbole indique la masse (terre).

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Avertissement
nLes précautions suivantes doivent être prises. Dans le cas contraire,
des accidents susceptibles de provoquer des blessures qui peuvent
éventuellement s’avérer mortelles résultant de dangers tels que des chocs
électriques, ou un préjudice au produit, risquent de survenir.
Fils de test / Fils de test à pince crocodile (accessoire en option)
• UtilisezlessondesfourniesparYokogawaaveccetinstrument.
•
N’utilisezpaslesFilsdetest/Filsdetestàpincecrocodilequiontdétérioréousontdéfectueux.
 VériezlacontinuitédesFilsdetest/Filsdetestàpincecrocodile.
• Démontez les Fils de test / Fils de test à pince crocodile du circuit à l’essai avant d’ouvrir le
boîtier pour remplacer les batteries ou pour n’importe quelle autre raison.
• Démontez les Fils de test / Fils de test à pince crocodile du circuit à l’essai avant de brancher
ou débrancher les Fils de test / Fils de test à pince crocodile vers/à partir de l’instrument.
• Démontez les Fils de test / Fils de test à pince crocodile de l’instrument avant d’ouvrir le
boîtier pour remplacer les batteries ou pour n’importe quelle autre raison.
• Unchapeauestfournisurleboutd’unldetest.
 Utilisez un fil de test avec le chapeau placé dessus pour une bonne sécurité (normes de
sécurité:EN61010-031).
• N'utilisezpasleslsdetestdontlespincescrocodilesontdujeuouontétéretirées.
Boîtier
• N’utilisezpasl’instruments’ilyaundommagequelconqueauboîtierouquandleboîtierest
enlevé.
Fusibles
• Utilisezlesfusiblesavecl’évaluationspéciéequandlefusibleestremplacé.
Environnement d’opération
• N’utilisez pasl’instrumentlàoùungazoudelavapeur(atmosphère)inflammableou
explosive quelconque est présente.
• Évitez d’utiliser l’instrument s’il a été exposé à la pluie ou à l’humidité ou si vos mains sont
humides.
Démontage
• Aucune personne, excepté le personnel deYokogawa, n’est autorisée à démonter cet
instrument.

62
Contents
1. Overview...........................................................................................................65
2. Measurement Category..................................................................................... 66
3. Specications ....................................................................................................67
3.1 GeneralSpecications ............................................................................67
3.2 Accuracy .................................................................................................70
4. Operation ..........................................................................................................78
4.1 Precautions Before Measurement........................................................... 78
4.2 Components ............................................................................................ 79
4.3 MeasuringInstructions............................................................................84
4.3.1 ACVoltageMeasurement ................................................................84
4.3.2 DCVoltageMeasurement ................................................................84
4.3.3 DC+ACVoltageMeasurement ........................................................85
4.3.4 DC,ACVoltageDualDisplay .........................................................85
4.3.5 ResistanceMeasurement..................................................................85
4.3.6 LowPower-Ω...................................................................................86
4.3.7 Continuity Check.............................................................................86
4.3.8 Diode Test........................................................................................ 87
4.3.9 Temperature Measurement...............................................................88
4.3.10 Current Measurement..................................................................... 89
4.3.11DC+ACCurrentMeasurement.......................................................90
4.3.12 DC,AC Current Dual Display........................................................ 91
4.3.13 Capacitor Measurement..................................................................91
4.3.14 Frequency Measurement, Duty cycle ratio.....................................92
4.3.15
FunctiontochangeRMSdetectionto/fromMEANdetection
mode........................................................................................................93
4.3.16Functiontoturnthelteron/off .....................................................93
4.3.17AUTOHOLDFunction.................................................................. 94
4.3.18PEAKHOLDFunction ..................................................................95
4.3.19Relativeandpercentagecalculation ...............................................95
4.3.20 Decibel calculation......................................................................... 96
4.3.21 MIN/MAX/AVGFunction .............................................................97
4.4 Memory Function....................................................................................98
4.5 AUTOPOWEROFFFunction.............................................................101
4.6 Set-upFunction.....................................................................................102
4.7 AdditionalfunctionssimplysetwhenPOWERON.............................105
4.8 Averaging Function...............................................................................105
4.9 5000 display mode................................................................................106
4.10LCDCheck .........................................................................................106

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5. UserCalibrationFunction...............................................................................107
6. BatteryandFuseReplacement ....................................................................... 112
6.1 BatteryReplacement............................................................................. 112
6.2 FuseReplacement ................................................................................. 113
7. Calibration and Maintenance.......................................................................... 114
8 Disposing the Product..................................................................................... 114

65
1. Overview
lFast and more accurate measurement
The TY710 and TY720 digital multimeters use Σmodulation for A/D conversion, which
enable fast and more accurate measurement.
lDisplay
5-digit (LCD)
Maximum Reading: 50000
Bar graph indicator
lSupports a variety of measurement function
Measurement function
DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature,
Capacitor, Duty cycle ratio, Decibel (dBV, dBm), Continuity Check, Diode Test,
 LowPower-Ω*
Other functions
 DataHold(D•H),AutoHold(A•H),PeakHold*(P•H),RangeHold(R•H),
Maximum value (MAX), Minimum value (MIN), Average value (AVG),
Zero Adjustment (Capacitor, Resistance), Relative values, Save to Memory,
LCD backlight.
  LowPower-Ω:Measuresresistanceunderlowmeasurementcurrent.
  *:FormodelTY720only
lSwitching detection modes
Effective value (root mean square value) detection (RMS) and mean value detection (MEAN)
can be switched during AC voltage or AC current measurement (TY720 only).
l Low-passlter
 Thelow-pass lter canbeswitched on/offduringAC voltage orAC currentmeasurement
(TY720 only).
lCommunication: optional communication package is required
• Measurement data can be transferred to a PC using an optional USB communication
package.
The data can be read by certain applications to make trend graphs or can be converted
intoExcelles.
• ThedatacanalsobeoutputfromanoptionalprinterviaanoptionalRS232cable.
lSafety design
Complied standards: CE standards
 Usesacurrent-inputterminalshutterforpreventingwronginput.
 Useshigh-performanceUL-standardfuses.