Tenma 72-7780 - Overview and Safety; Safety Information and Standards

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I. Overview
72‐2800isaprofessionalhandheldtrueRMSmultimeterwithwidescopeof
application.Itisasafe,stableandreliablemeasurementdeviceforAC/DC,resistance,
diode,continuity,capacitance,frequency,NCVmeasurementetc.
II. UnpackingInspection
Openthepackageboxandtakeoutthedevice.Pleasecheckwhetherthefollowing
itemsaredeficientordamagedandcontactyoursupplierimmediatelyiftheyare.
• Usermanual‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1pc
• Testleads‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1pair
• K‐typethermocouple‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1pc
• Optionalcurrentclamp
III. Safetyinformation
SafetyStandards
• EN61010‐1:2010
• CATIII600V,doubleinsulationstandard,overvoltagestandard,andRoHS,
pollutiongradeII
Pleasereadandcomplywiththesafetyinformationcarefully,ortheprotection
providedbythedevicemaybeimpaired.
1. Donotusethedeviceiftherearcoverisnotcovereduporitwillposeashock
hazard
2. Donotusethedeviceifthedeviceortestleadsappeardamagedorifyou
suspectthatthedeviceisnotoperatingproperly.Payparticularattentiontothe
insulationlayers.
3. Toavoidfalsereading,replacethebatterywhenthebatteryindicator
appears.
4. Functionaldialshouldbeswitchedtoproperposition.
5. Neverinputvoltageandcurrentexceedingthevaluelistedonthedevice.
6. Donotswitchthefunctionaldialduringmeasuring.
7. Aftereachmeasure,disconnectthetestleadswiththecircuit.Formeasuring
current,switchoffthepowersupplybeforetestleadsdisconnection,especially
importantformeasuringlargecurrent.
8. Usecautiontomeasurevoltage>DC60VorAC30Vrms.
9. Donotuseorstorethedeviceinhightemperature,highhumidity,flammable,
explosiveorstrongmagneticfieldenvironments.
10. Donotchangetheinternalcircuitofthedeviceinordertoavoidthedamageto
thedeviceandusers.
11. Usedampclothtocleanthecase;donotusedetergentcontainingsolventsor
abradants.
IV. Symbols
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Lowbattery

Buzzerindicator