REED ST-3347 Manual de usuario

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Model ST-3347

AC/DC True RMS

Clamp Meter

Instruction

Manual

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Table of Contents

Measuring Limits .................................................................................2

Safety Information ........................................................................... 3-5

Features...............................................................................................5

Meter Description................................................................................6

Specications.................................................................................. 6-7

DC Current Measurement ...................................................................8

AC TRMS Current Measurement.........................................................9

DC Voltage Measurement .................................................................10

AC TRMS Voltage Measurement.......................................................11

Resistance Measurement..................................................................12

Capacitance Measurement ...............................................................13

Frequency Measurement...................................................................14

Temperature Measurement ...............................................................15

Diode Test..........................................................................................16

Continuity Testing..............................................................................17

Data Hold Functions..........................................................................18

Peak Hold Functions .........................................................................18

LCD Backlight ...................................................................................18

Auto Power Off..................................................................................19

Battery Replacement.........................................................................19

Measuring Limits

DC Amperes: 0.01A to 1000A AC Amperes: 0.01A to 1000A

DC Voltage: 0.1mV to 600V AC Voltage: 0.1mV to 600V

Resistance: 0.1Ωto40MΩ Capacitance: 0.001 nF to 40mF

Frequency: 0.001 kHz to 4kHz Temperature: -40°C to 1000°C

-40°F to 1832°F

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Safety Information

This manual contains information that must be followed to operate the

meter safely and maintain the meters safe operating condition. If the

meterisnotusedinamannerspeciedinthismanual,theprotection

provided by the meter may be impaired.

The model has been designed and complies With IEC 61010-1 and

EN 61010-1 Safety Requirements for Electronic Measuring Apparatus.

WARNING

• Read through the operating instructions throughly and understand the

instructions before operating the meter.

• Keep the manual at hand so as to enable quick reference when necessary

• Ensure that the use of the meter is in its intended applications and

follow measurement procedures described in this manual.

• Follow all safety and operating instructions to ensure maximum

personal safety during the use and operation of the meter.

• Failuretofollowtheaboveinstructionsmaycauseinjury,instrument

damage and/or damage to the equipment under test.

• The symbols indicated on the meter means that the user must refer to

related parts in the manual for safe operation of the meter. Be sure to

carefully read the instructions following each symbol in this manual.

DANGER is reserved for conditions and actions that are likely

to cause serious or fatal injury.

WARNING is reserved for conditions and actions that are likely

to cause serious or fatal injury.

CAUTION is reserved for conditions and actions that are likely

to cause minor injury.

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Danger

• Never use the meter to measure voltages on a circuit above the maxi-

mum allowable input value on any function.

• Do not exceed the maximum allowable input of any measurement range.

• Nevertouchexposedwiring,connectionsoranylivecircuitwhenat-

tempting to take measurements.

• Donotattempttomakemeasurementsinammablegaseousareas,

fumes,vaporordust.Theuseoftheinstrumentintheseareasmaycause

sparking,whichcanleadtoanexplosion.

• Do not attempt to use the instrument if its surface or your hand is wet.

• Never open the battery compartment cover when making measurements.

Warning

• Always inspect the meter and test leads for any signs of damage or

abnormalities before use. If the meter or its accessories have any

structuraldefectssuchasbrokentestleads,crackedcases,exposed

metalpartsorthedisplayisnotreading,donotattempttomake

measurements.

• Do not turn the function switch while test leads are connected to the meter.

• Donotinstallsubstitutepartsormakemodicationstothemeter.

Return the meter to your distributor for repair or re-calibration. For

serviceonthisoranyotherREEDproduct,contactREEDInstruments

at info@reedinstruments.com.

• Ensure the meter is switched off before opening the battery cover when

replacing the battery.

• Never replace a battery if the surface of the meter is wet or moist.

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Caution

• Before making measurements ensure that the function selector switch

is set on the appropriate range position.

• Always make sure that the plug of each test lead is inserted fully into

the appropriate terminal of the meter.

• Ensure that the function selector switch is set to the “OFF” position

afteruse.Whenthemeterwillnotbeinuseforalongperiodoftime,

place it in storage after removing the battery.

• Donotexposethemetertodirectsunlight,extremetemperaturesor

moisture.

• Do not use abrasives or solvents on the meter. To clean it use a damp

clothandmilddetergentonly.Onlyqualiedandtrainedservicetechni-

cians should perform calibration and repair of the meter.

ForserviceonthisoranyotherREEDproduct,contactREEDInstruments

at info@reedinstruments.com.

Features

• True RMS measurement of AC Current and AC Voltage

• Large 4000 count LCD display with a bargraph and a bright white LED backlight.

• Wide measuring range from 0.01A AC/DC up to 1000A AC/DC

• Measures AC and DC Voltage up to 600 volts

• Measuresresistancefrom0.01Ωupto40MΩ.

• Capacitance measurements up to 40mF

• Temperature measurements from -40°C to +1000°C and -40°F to +1832°F

• Designed to the international safety standard IEC61010 CAT III 600V /

CAT II 1000V. Pollution degree 2.

• Auto Power Off after approximately 20 minutes to conserve battery life.

• Continuity Buzzer and Diode Test.

• Frequency measurement up to 4kHz.

• Peak Hold to record the minimum and maximum readings for current & voltage.

• Data Hold switch used to freeze reading on display

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Transformer

Jaws

Function Switch

DC Amps Zero Adjustment

Backlight Button

Display

Volt,Resistance,Frequency,

Capacitance,Temperature,

Terminal

Jaw Trigger

Data Hold Button

Mode Button

Peak Hold Button for

Volts and Current

COM Terminal

Meter Description

Specifications

Clamp Size 30mm Opening Approx

Diode Test Test Current of 0.3mA typical;

Open circuit voltage 1.5V DC

ContinuityCheck Thershold<35Ω;Testcurrent<1mA

Low Battery indication is displayed

Overrange Indication “OL” is displayed

MeasurementsRate 2persecond,nominal

InputImpedance 10MΩ(VDCandVAC)

Display 4000 count LCD

ACCurrent 50/60Hz(AAC)

ACVoltageBandwidth 50/60Hz(VAC)

OperatingTemperature -10°Cto50°C(14°Fto122°F)

StorageTempertaure -30°Cto60°C(-22°Fto140°F)

Relative Humidity Up to 85%

Over Voltage Category III 600V

Battery One DC 9V IEC 6F22. 1604. Battery

Auto Power Off Approx 20 minutes

Dimensions 229 x 80 x 49mm

Weight 303g

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Range Measuring Range Resolution Accuracy (% of Reading)

DC CURRENT

40A 0 ~ 40.00A 0.01A ±(2.8%+10digits)

400A 0 ~ 400.0A 0.1A ±(2.8%+8digits)

1000A 0 ~ 1000A 1A ±(3.0%+8digits)

AC CURRENT

40A 0 ~ 40.00A 0.01A ±(2.8%+10digits)

400A 0 ~ 400.0A 0.1A ±(2.8%+8digits)

1000A 0 ~ 1000A 1A ±(3.0%+8digits)

DC VOLTAGE

400mV 0 ~ 400mV 0.1 mA ±(0.8%+2digits)

4V 0 ~ 4.000V 0.001V

±(1.5%+2digits)

40V 0 ~ 40.00V 0.01V

400V 0 ~ 400.0V 0.1V

600V 0 ~ 600A 1V ±(2.0%+2digits)

AC VOLTAGE

400mV 0 ~ 400mV 0.1 mA ±(1.0%+10digits)

4V 0 ~ 4.000V 0.001V

±(1.5%+8digits)

40V 0 ~ 40.00V 0.01V

400V 0 ~ 400.0V 0.1V

600V 0 ~ 600A 1V ±(2.0%+8digits)

Note: No Autoranging on 400mV AC Range

RESISTANCE

400Ω 0~400.0Ω 0.1Ω ±(1.0%+4digits)

4kΩ 0~4.000kΩ 1Ω

±(1.5%+2digits)

40kΩ 0~40.00kΩ 10Ω

400kΩ 0~400.0kΩ 100Ω

4MΩ 0~4.000MΩ 1kΩ ±(2.5%+5digits)

40MΩ 0~40.00MΩ 10kΩ ±(3.5%+10digits)

CAPACITANCE

4nF 0 ~ 4.000nF 0.001nF ±(5.0%+30digits)

40nF 0 ~ 40.00nF 0.01nF ±(5.0%+20digits)

400nF 0 ~ 400.0nF 0.1nF

±(3.0%+5digits)

4µF 0 ~ 4.000µF 0.001µF

40µF 0 ~ 40.00µF 0.01µF

400µF 0 ~ 400.0µF 0.1µF ±(4.0%+10digits)

4mF 0 ~ 4.000mF 0.001mF ±(4.5%+10digits)

40mF 0 ~ 40.00mF 0.01mF ±(5.0%+10digits)

FREQUENCY

4kHz 0 ~ 4.000kHz 0.001kHz ±(1.5%+2digits)

Sensitivity: 5Vrms min

TEMPERATURE

°C -40°C ~ 1000°C 1°C ±(2.5%+3°C)

°F -40°F ~ 1832°F 1°F ±(2.5%+5°F)

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DC Current Measurement

Warning

Ensure that the test leads are disconnected from the

meter before making current measurements.

1. Set the Function switch to 1000A or 400A or 40A rangeposition,and

make sure that the current under test does not exceed the upper limit

of the measuring range you have selected. The meter automatically

defaults to DC Current.

2. Press the DC ZERObuttononce,the sign will appear on the LCD

indicating Range is zero.

3. Press the trigger to open up the transformer jaws and clamp around

the single conductor under test.

4. Read the display.

Notes:

• Duringcurrentmeasurementskeepthetransformerjawsfullyclosed,

otherwise it will affect the accuracy of the measurement.

• When large currents the transformer jaws may buzz. This is not a fault

and does not affect the accuracy of the reading.

Correct Current Incorrect Current

Measurement Measurement

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AC True RMS Current Measurement

Warning

Ensure that the test leads are disconnected from the meter

before making current measurements.

1. Set the function switch to 1000A~ or 400A~ or 40A~rangeposition,

and make sure that the current under test does not exceed the upper

limit of the measuring range you have selected

2. Press the MODE button to select the AC Current range. The meter

automatically defaults to DC current

3. Press the trigger to open up the transformer jaws and clamp around

the single conductor under test.

4. Read the display.

Notes:

• Duringcurrentmeasurementskeepthetransformerjawsfullyclosed,

otherwise this will affect the accuracy of the measurement.

• When large currents the transformer jaws may buzz. This is not a fault

and does not affect the accuracy of the reading.

• The meter is set to default to “Auto Range” mode.

• Pressing the PEAK hold button will allow the user to record the peak

maximum and minimum readings on the AC volt range. See page 17 for

further Instructions for “PEAK” Hold function

Correct Current Incorrect Current

Measurement Measurement

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DC Voltage Measurement

1. Set the Function switch to range position.

The meter automatically defaults to DC Volts.

2. Insert the red test lead into the “V Ω TEMP HZ” input terminal

and the black lead to the “COM” terminal.

3. Connect the other end of the test leads to the circuit under test.

4. Read the display. If a “-”signisdisplayed,theredlead

is the negative potential.

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