Triplett 310 Manual de usuario



Model

310 Type 9

310-C Type 9

(AND3IZED6/-

)NSTRUCTION-ANUAL

TRIPLETT

TABLE OF CONTENTS

SAFETY RULES ............................................... 2

INTRODUCTION ...............................................8

SPECIFICATIONS ............................................. 9

GENERAL INSTRUCTIONS ................................ 11

Test Leads ............................................. 11

Range Selection ...................................... 11

Scale Selection ....................................... 12

Polarity Selection (310-C only) .................... 12

Changing Settings .................................... 12

Zero Adjustment ...................................... 12

Other Considerations ................................ 13

Care .................................................... 13

CONTROL LOCATION DIAGRAM ......................... 14

DC VOLTAGE MEASUREMENTS .......................... 15

AC VOLTAGE MEASUREMENTS .......................... 17

RESISTANCE MEASUREMENTS .......................... 19

DC CURRENT MEASUREMENTS ......................... 21

MEASURING OUTPUT VOLTS (dB) ...................... 23

OPERATION CHART ........................................ 25

ACCESSORIES .............................................. 26

MAINTENANCE ............................................. 27

TRIPLETT LIMITED WARRANTY ....................... 29

84-894 9/20/2010

SAFETY RULE3sWARNING

This tester has been designed with your safety in mind.

However, no design can completely protect against in-

correct use. Electrical circuits can be dangerous and/

or lethal when lack of caution or poor safety practices

are used.

WARNING

This meter is NOT to be used to measure High Energy

circuits (power circuitry fused at greater than 4KW, such

as distribution circuits, power entrance circuits, etc.) or

circuits classified by CE as CATEGORY III (CAT III).

SAFETY RULES AND WARNINGS

sRead all instructions in this manual before using this meter.

sPrior to using this meter in any situation which could result

in injury to the user, in order to verify that the meter is

functional and producing a valid reading, test the meter on

a circuit(s) known to have potentials equivalent to the

potential that is to be measured. For example, before using

the meter to determine if an AC power line is energized with

120VAC, test the meter on a line known to be energized

with 120VAC.

s Do not exceed the maximum voltage limitations of this

meter (see product specifications). Doing so may damage

the meter and/or injure the user.

s7HEn using this meter in schools and workshops,

responsible teachers or skilled personnel must control the

usage of this meter.

s&OLLOWThe recommendations of any Trade Organizations or

Regulatory Agencies whose scope encompasses the use

of this meter.

s$ONOTUSETHISMETERWITHITSBATTERYCOVEROPENITSREAR

CASEOPENORWITHPARTSREMOVED.

s$ONOTOPENTHISMETERfORMAINTENANCEWITHOUTFIRST

DISCONNECTINGTHETESTLEADSfROMALLEXTERNALCIRCUITRy.

s2EPAIRSANDMAINTENANCEMUSTONLYBECARRIEDOUTBy

qUALIfIEDSERVICEPERSONNELORQUALIfIEDELECTRICIANS/

TECHNICIANSWHOKNOWTHEDANGERSOFANDTHESAfETYRULES

APPLICABLETOTHISTYPEOFEQUIPMENT.

s5SECAUTIONWHENMEASURINGCIRCUITSCONTAININGCAPACITORS.

#APACITORSCANSTOREDANGEROUSLEVELSOFELECTRICITyEVEN

WHENTHECIRCUITRyWHICHTHEYAREINHASBEENDISCONNECTED

FROMITSPOWERSOURCE.

sUSECAUTIONWHENWORKINGWITHVOLTAGESABOVE25VOlTSAC

OR35VOLTS$C.3UCHVOLTAGESMAYCAUSEALIfETHREATENING

ELECTRICALSHOCK.

s4HISMETERISNOTFORUSEBYCHILDREN.

s!LWAYSSETTHEMETERTOTHEAPPROPRIATERANGEMODEOR

POLARITYBEFORECONNECTINGITTOTHECIRCUITRyTOBETESTED.

s.EVERATTEMPTTOMAKEVOLTAGEMEASUREMENTSWITHTHE

&UNCTIONSWITCHSETTOANyOFTHEO(-3OR-!RANGES.

$OINGSOMAYDAMAGETHEMETERANDORINjURETHEUSER.

s$ONOTOPERATETHE2ANGESWITCHOR0OLARITYSWITCH(310-C

ONLYWITHTHETESTLEADSCONNECTEDTOTHECIRCUITRyTOBE

TESTED$OINGSOMAYDAMAGETHEMETERANDORINjURETHE

USER.

s"EFOREUSINGTHEMETEREXAMINEBOTHTHEMETERANDTHE

TESTLEADSFORDAMAGE$ONOTUSETHEMETERIFDAMAGE

DAMAGEDINSULATIONEXPOSEDMETALCRACKEDCASEBURNT

SMELLETCISEVIDENT.

s$ONOTUSETHISMETERTOMAKEMEASUREMENTSINADVERSE

ENVIRONMENTSSUCHASRAINSNOWFOGORlOCATIONSWITH

STEAMEXPlOSIVEGASESORDUSTS$OINGSOMAYDAMAGETHE

METERAND/ORINjURETHEUSER.

sMake sure both test leads are fully inserted into their respec-

tive input jacks (Black lead into COM and Red lead into

6s/s-). A loose test lead may cause the user to misinter-

pret the dangers present (the meter may read Zero when

dangerous voltage is present) or the loose lead may

accidentally short to other circuitry or shock the user.

sDo not use the meter if either the meter or the test leads are

wet, either from exposure to the weather, or after cleaning

the case of the meter. Doing so may cause injury to the user.

sAvoid usage near strong magnetic fields (magnets,

loudspeakers, transformers, motors, coils, relays,

contactors, electromagnets, etc.). The meter may display

readings that are in error, causing the user to misinterpret

the hazards present. For example, the meter may indicate a

low voltage when high voltages are actually present.

sAvoid usage near strong electrostatic fields (high voltage

power lines, televisions, computer monitors, etc.). The

meter may display readings that are in error, causing the

user to misinterpret the hazards present. For example, the

meter may indicate a low voltage when high voltages are

actually present.

sAvoid usage near strong RF fields (radio or television trans-

mitters, etc.). The meter may display readings that are in

error, causing the user to misinterpret the hazards present.

For example, the meter may indicate a low voltage when

high voltages are actually present.

sDo not touch the tips of the test leads when making a meas-

urement. Do not touch live circuitry when making a

measurement.

sDo not apply more than 1200 volts DC/AC rms sine between

the test leads and the earth ground. Doing so may damage

the meter and/or injure the user.

s)FThere is any doubt about the condition of the meter (i.e.

safe vs unsafe), remove the meter from service and secure

it in a location that will prevent its unintentional use.

sDo not use the meter if it does not appear to work correctly

on all ranges and in all modes.

sDo not use the meter if it has undergone long-term storage

under unfavorable conditions.

sDo not use the meter if it may have been damaged in

transport.

sDo not attempt immediate use of the meter when bringing

if from a cold environment to a warm environment.

Condensation of water, inside and outside of the meter, may

produce dangerous measuring conditions. Allow the meter

to warm to room temperature before using.

sDo not use meter in condensing atmospheres. That is, do

not use meter in conditions where ambient temperature and

humidity could cause condensation of water inside of meter.

Doing so may cause injury to the user.

sUse caution when attempting to evaluate if a dangerous

voltage is present. The meter will not read AC voltage if it is

set to DC. For example, if the meter is set to 300VDC, it will

not measure a dangerous AC voltage, even if the probes are

inserted into a household AC wall outlet.

s$ONOTTOUCHThe metallic portion of one test lead if the

other test lead is connected to a live circuit. The current

from the live circuit may pass through the meter and appear

on the unconnected test lead. Failure to observe this

warning may result in user injury.

sRemove the battery when the meter may be left unused for

longer than 1 month. Chemical leakage from the battery

could damage the meter, leading to user injury.

sDo not use the meter if there is evidence of chemical

leakage from the battery. Leakage could damage meter and

lead to injury of user.

sDo not modify the meter. Changing the design may make

the meter unsafe and may result in injury to the user.

sDo not mistake a downscale reading as an indication that no

potential is present. Dangerous potentials may be present

that may result in user injury.

sWhen replacing the battery, dispose of the depleted battery

in accordance with any prevailing safety or environmental

regulations.

s!Static charge on the face of the meter may cause the

meter to produce inaccurate readings, which could lead to

user injury. This condition is usually observed in dry

climates, when the face of the meter is rubbed with a cloth.

!pply !NTISTAT solution, or mild detergent, to the face of the

meter to dissipate the static charge.

READ THE MANUAL

Read this Instruction Manual carefully and completely.

Voltages and currents within the capability of this test

equipment can be hazardous. Follow the instructions

in this manual for every measurement. Read and un-

derstand the general instructions before attempting

to use this tester. Do not exceed the limits of the tester.

SAFETY CHECK

Double check the switch setting and lead connections

before making measurements. !RE you following all

of the instructions?

Disconnect the tester or turn off the power before

changing switch positions. Do not connect to circuits

with voltage present when switch is in any ohms or

current position.

When replacing fuses, use only specified type fuses

and insert in correct fuse holder.

DO NOT TOUCH

Do not touch exposed wiring, connections or other

“live” parts of an electrical circuit. If in doubt, check

the circuit first for voltage before touching it.

Turn off the power to a circuit before connecting test

probes to it. Be sure there is no voltage present be-

fore you touch the circuit. Do not use cracked or bro-

ken test leads.

HIGH VOLTAGE IS DANGEROUS

Always start with the power off. Be sure there is no

voltage present before making connections to the cir-

cuit.

Don’t touch the tester, its test leads, or any part of the

circuit while it is on.

Before disconnecting the tester, turn the circuit off and

wait for the meter to return to “zero.”

DISTRIBUTION CIRCUITS PACK A PUNCH

In high energy circuits such as distribution transform-

ers and bus bars, dangerous arcs of explosive nature

can occur if the circuit is shorted. If the tester is con-

nected across a high energy circuit when set to a low

resistance range, a current range, or any other low

impedance range, the circuit is virtually shorted.

Special equipment designed for use with these circuits

is available. Contact a qualified person for assistance

before attempting to make measurements on any high

energy circuit.

SAFETY IS NO ACCIDENT

INTRODUCTION

The Triplett Model 310 and 310-C are hand-sized VOMs

with all the versatility and performance of larger, more

expensive bench-size models. They offer diode over-

load protection against damage to the meter move-

ments caused by accidental overloads. A fuse is used

to protect the RX1 range. The fuse and batteries can

be easily replaced by removing the back cover.

Small enough to be carried in your tool box, glove com-

partment, brief case, or shirt pocket, the Model 310

features 20,000 ohms per volts DC sensitivity and

5,000 ohms per volt AC. The 310-C features 20,000

ohms per volt DC and 15,000 ohms per volt AC sensi-

tivity.

Additionally, the 310-C incorporates a convenient Po-

larity Reversing Switch which electrically reverses the

test lead connections easily correcting accidental

downscale readings.

Versatility and readability have not been sacrificed in

order to provide a portable VOM. Both models have

18 different ranges that can be easily read on only 3

clearly defined scale areas. A single selector switch

allows you to switch easily from range to range and

function to function.

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