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#61-796

Earth Ground Resistance Tester

Instruction Manual

796 FEATURES

Measures ground rod resistance using 3-poles•

Measures earth voltage•

Does not trip ground fault breakers in the •

circuit under test

Includes test leads and electrodes •

0• Ω adjustment

Data hold•

Low battery indicator•

Read First: Safety Information

Understand and follow operating instructions carefully. If this tester is not used in a manner

speciﬁed by IDEAL, protection provided by the product may be impaired.

WARNING

To avoid possible electric shock, personal injury or death, follow these instructions:

• Donotuseiftesterappearsdamaged.Visuallyinspectthetestertoensurecaseisnot

cracked and back case is securely in place.

• Inspectandreplaceleadsifinsulationisdamaged,metalisexposed,orprobesare

cracked. Pay particular attention to the insulation surrounding the connectors.

• Ashockhazardexistsduringnormaltestingasavoltageispresentacrossthemeasuring

terminals.

• Donotusetesterifitoperatesabnormallyasprotectionmaybeimpaired.

• Donotuseduringelectricalstormsorinwetweather.

• Donotusearoundexplosivegas,dust,orvapor.

• Donotusetesteronenergizedcircuits.

• Donotusewithoutthebatteryandthebackcaseproperlyinstalled.

• Replacebatteryassoonasthelowbatteryindicator“”appearstoavoidfalse

readings.

• Removethetestleadsfromunitpriortoremovingbatterycap.

• Usetheproperterminals,functionandrangeforyourmeasurements.

• Donotattempttorepairthisunitasithasnouser-serviceableparts.

• Complywithlocalandnationalsafetyrequirements,includingtheuseofappropriate

personalprotectiveequipment.

CAUTION

Toprotectyourself,think“SafetyFirst”:

• Voltagesexceeding30VACor60VDCposeashockhazardsousecaution.

• Useappropriatepersonalprotectiveequipmentsuchassafetyglasses,faceshields,

insulating gloves, insulating boots, and/or insulating mats.

• Nevergroundyourselfwhentakingelectricalmeasurements.

• Alwaysworkwithapartner.

• Whenusingtheprobes,keepngersasfarbehindtheprobetipsaspossible.

Operating Instructions

• Beforeproceedingwith

measurement, if the

 ““symbolappearson

the display, replace with new

batteries.

• Shortthetipsoftheleads.

Adjust the 0Ω. ADJ control to

setthereadingtozero.

• Rotatethefunctionswitchtothe“EARTHVOLTAGE”positionandpresstotest.Earthvolt-

agewillbedisplayedontheLCD.Ifearthvoltageismorethan10V,aninaccuratereading

may be obtained.

• Precisionearthresistancemeasurementmethod:

 (1) Connectthegreen,yellowandredtestleadstoinstrumentterminalsE,PandCwith

  auxiliaryearthspikesP1,C1placedintothesoil“INASTRAIGHTLINE”.(Fig.1)

 (2) Rotatethefunctionswitchtoasuitablerangethenpressthepushbuttontotestand

take the reading.

• Simpliedearthresistancemeasurementmethod

 (1) Thismethodisrecommendedwhereanearthresistancehigherthan10Ω is

  measuredorwhereitisnotpossibletodriveauxiliaryearthspikes.Anapproximate

  valueofearthresistancecanbeobtainedbythetwowiresystemshowninFig.2.

 (2) Rotatethefunctionswitchto“EARTHVOLTAGE”positionandpresstotest.Make

  certainthatearthvoltageislessthan10V.

 (3) Firstrotatethefunctionswitchtothe“200Ω“positionandpresstotest.Readearth

  resistance.Ifthedisplayshows“1”(MSD),switchtothe“2KΩ“positionandread

earth resistance.

 (4) Thereadingobtained(Rx)isan

  approximateearthresistance

value. There is no need for

  externalshortingasPandC

terminals are shorted by

using the test leads

speciﬁed for the simpliﬁed

measurement.

Auxiliary

Earth

Spikes

Earth

Electrode

under test

5-10m 5-10m

Green

Y e llow

Red

Figure 1

Earth

Electrode

under test

Where earth for mains power

supply is used.

Green

Rx = Re-re

Secondary

Side

Primary

Side

Red

re Rx

Supply

Transformer

Figure 2

Summary of content (9 pages)

PAGE 1
#61-796 Earth Ground Resistance Tester Instruction Manual 796 FEATURES • Measures ground rod resistance using 3-poles • Measures earth voltage • Does not trip ground fault breakers in the circuit under test • Includes test leads and electrodes • 0Ω adjustment • Data hold • Low battery indicator Read First: Safety Information Understand and follow operating instructions carefully. If this tester is not used in a manner specified by IDEAL, protection provided by the product may be impaired.
PAGE 2
* Follow the proper connection as shown in Fig. 1. The LED (red) indicator will light. This indicates that a correct current flow is taking place. Battery replacement: When the symbol “ “ appears on the display, replace with new batteries as follows: • Disconnect the test leads from the instrument and turn off the power. • Unscrew the cover, then slide the cover, take out the batteries and replace with new batteries, type AA. • Replace back cover and secure with 2 screws.
PAGE 3
#61-796 Medidor de resistencia de toma de tierra Manual de Instrucciones CARACTERÍSTICAS DEL 796 • Mide la resistencia de la jabalina de toma de tierra usando 3 electrodos • Mide el voltaje de tierra • No dispara los disyuntores de falla de tierra del circuito en prueba • Incluye cables y electrodos de tierra • Ajuste de 0Ω • Retención de datos • Indicador de baterías con poca carga Lea primeramente: Información de seguridad Asegúrese de entender y seguir cuidadosamente las instrucciones de operación.
PAGE 4
• • • • • Reemplace las baterías tan pronto aparezca el indicador de baterías con poca carga “ ”, a fin de evitar lecturas falsas. Retire los cables de prueba de la unidad antes de desmontar la tapa de las baterías. Use los terminales, la función y el alcance apropiados para sus medidas. No intente reparar esta unidad puesto que no tiene piezas reparables por el usuario. Cumpla los requisitos de seguridad locales y nacionales, incluido el uso de equipos de protección personal apropiados.
PAGE 5
ESPECIFICACIONES Sistema de medida: Frecuencia de funcionamiento - 820 Hz, 2mA aprox. Resistencia de tierra: Rango: 20/200/2000Ω Resolución: 0~19.99Ω (0.01Ω) 0~199.9Ω (0.1Ω) 0~1999Ω (1Ω) Voltaje de tierra: 0~200 V CA, 40-500 Hz Exactitud: Resistencia de tierra: ±(2% de la lectura ± 2 dígitos) o ±0.1Ω, según cuál sea mayor. Voltaje de tierra: ±(1% de la lectura ± 2 dígitos) Pantalla: LCD de 3½ dígitos (2000 unidades) Indicación de baterías con poca carga Aparece el símbolo “ ” en la pantalla.
PAGE 6
#61-796 Testeur de résistance de piquet de terre Manuel d’instructions CARACTÉRISTIQUES DU 796 • Mesure la résistance des piquets de terre à l’aide de 3 pôles • Mesure la tension de la terre • Ne déclenche pas les disjoncteurs de fuite de terre du circuit en cours d’essai • Comprend les conducteurs et électrodes de test • Réglage 0Ω • Rétention de données • Témoin de piles déchargées Lire en premier : Informations de sécurité Assimiler et se conformer scrupuleusement aux instructions d’utilisation.
PAGE 7
• • • • • Remplacer la pile dès que le témoin de piles déchargées est affiché [ ] afin d’éviter les fausses lectures. Retirer les fils d’essai de l’appareil avant de retirer le capuchon des piles. Utiliser les bonnes bornes, fonction et plage pour vos mesures. Ne pas tenter de réparer cet appareil. Il ne comporte aucune pièce réparable par l’utilisateur.
PAGE 8
SPECIFICATIONS Système de mesure: Résistance à la terre: Résolution: Fréquence de fonctionnement – 820 Hz, 2 mA environ Plage: 20/200/2000 Ω 0 à 19,99 Ω (0,01Ω) 0 à 199,9 Ω (0,1 Ω) 0 à 1999 Ω (1 Ω) 0 à 200 V c.a. , 40 à 500 Hz Résistance à la terre: ±(lecture 2 % ± 2 chiffres) ou ± 0,1 Ω, selon celui est est le plus grand. ±(lecture 1% ± 2 chiffres) Cristaux liquides 3½ chiffres (décompte jusqu’à 2000) le symbole “ ” s’affiche.
PAGE 9