Extech Instruments DM220 Manual de usuario

CA V

82xxx

AutoRanging DMM

CAT III - 1000 V

CATIV-600 V

User's Guide

Pocket Autoranging DMM

Model DM220

Introduction

Congratulations on your purchase of the Extech DM220 Pocket Autoranging

Multimeter. This meter measures AC/DC Voltage, AC/DC Current with

200mA/500V resettable fuse, Resistance, Capacitance, Frequency, Duty Cycle,

Diode Test, and Continuity. It features a built-in non-contact AC voltage detector

plus flashlight. Proper use and care of this meter will provide many years of reliable

service.

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DM220 V3.0 01/062

Safety

This symbol adjacent to another symbol, terminal or

operating device indicates that the operator must refer to an

explanation in the Operating Instructions to avoid personal

injury or damage to the meter.

This WARNING symbol indicates a potentially hazardous

situation, which if not avoided, could result in death or

serious injury.

This symbol indicates that a device is protected throughout

by double insulation or reinforced insulation.

This meter has been designed for safe use, but must be operated with caution.

The rules listed below must be carefully followed for safe operation.

1. NEVER apply voltage or current to the meter that exceeds the specified

maximum:

Input Protection Limits

Function Maximum Input

V DC or V AC 600V DC/AC

µA AC/DC 200mA 500V fast acting resettable fuse

Resistance, Diode Test,

Continuity Test

600V DC/AC

2. USE EXTREME CAUTION when working with voltages greater than 25VAC

or 35VDC. These voltages are considered a shock hazard.

3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds

600V above earth ground.

4. NEVER connect the meter leads across a voltage source while the function

switch is in the current, resistance, or diode mode. Doing so can damage the

meter.

5. ALWAYS discharge filter capacitors in power supplies and disconnect the

power when making resistance, continuity or diode tests.

6. ALWAYS turn off the power and disconnect the test leads from the circuit

before opening the cover to replace the batteries.

7. NEVER operate the meter unless the battery cover is in place and fastened

securely.

Description

1. Non-contact ACV detector probe tip

2. Non-contact ACV indicator light

3. 3-3/4 digit (4000 count) LCD

4. Mode switch

5. Flashlight button

6. Function switch

7. Battery cover

8. Test Leads

9. Hz/%Duty Cycle button

10. Flashlight

WARNING

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DM220 V3.0 01/063

Operating Instructions

WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very

dangerous and should be measured with great care.

1. ALWAYS turn the function switch to the OFF position when the meter is not in

use.

2. If “OL” appears in the display during a measurement, the value exceeds the

range you have selected. Change to a higher range.

NOTE: On some low AC and DC voltage ranges, with the test leads not connected

to a device, the display may show a random, changing reading. This is normal

and is caused by the high-input sensitivity. The reading will stabilize and give a

proper measurement when connected to a circuit.

AC/DC VOLTAGE MEASUREMENTS

CAUTION: Do not measure AC/DC voltages if a motor on the circuit is being

switched ON or OFF. Large voltage surges may occur that can damage the

meter.

1. Set the function switch to the V/Hz/% position.

2. Press the MODE button to indicate “AC” or “DC” on the display.

3. Touch the black test probe tip to the negative side of the circuit.

Touch the red test probe tip to the positive side of the circuit.

4. Read the voltage in the display.

AC/DC CURRENT MEASUREMENTS

1. For current measurements up to 4000µA AC/DC, set the function switch to the

µA position

2. For current measurements up to 200mA AC/DC, set the function switch to the

mA position.

3. Press the MODE button to indicate “AC” or “DC” on the display.

4. Remove power from the circuit under test, then open up the circuit at the point

where you wish to measure current.

5. Touch the black test probe tip to the negative side of the circuit.

Touch the red test probe tip to the positive side of the circuit.

6. Apply power to the circuit.

7. Read the current in the display.

RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test

and discharge all capacitors before taking any resistance measurements.

Remove the batteries and unplug the line cords.

1. Set the function switch to the ΩCAP position.

2. Press the MODE button to indicate Ω on the display.

3. Touch the test probe tips across the circuit or part under test. It is best to

disconnect one side of the part under test so the rest of the circuit will not

interfere with the resistance reading.

4. Read the resistance in the display.

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DM220 V3.0 01/064

CONTINUITY CHECK

WARNING: To avoid electric shock, never measure continuity on circuits or

wires that have voltage on them.

1. Set the function switch to the ΩCAP position.

2. Press the MODE button to indicate on the display.

3. Touch the test probe tips to the circuit or wire you wish to check.

4. If the resistance is less than approximately 100Ω, the audible signal will sound.

If the circuit is open, the display will indicate “OL”.

DIODE TEST

1. Set the function switch to the ΩCAP position.

2. Press the MODE button to indicate on the display.

3. Touch the test probes to the diode under test. Forward voltage will typically

indicate 0.400 to 0.700V. Reverse voltage will indicate “OL”. Shorted devices

will indicate near 0V and an open device will indicate “OL” in both polarities.

CAPACITANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test

and discharge all capacitors before taking any capacitance measurements.

Remove the batteries and unplug the line cords.

1. Set the rotary function switch to the ΩCAP position.

2. Press the MODE button to indicate nF on the display.

3. Touch the test leads to the capacitor to be tested.

4. Read the capacitance value in the display

FREQUENCY MEASUREMENTS

1. Set the rotary function switch to the V/Hz/% position.

2. Press the Hz /% button to indicate Hz on the display.

3. Touch the test probe tips to the circuit under test.

4. Read the frequency on the display.

% DUTY CYCLE

1. Set the rotary function switch to the V/Hz/% position.

2. Press the Hz/% button to select %on the display.

3. Touch the test probe tips to the circuit under test.

4. Read the % duty cycle on the display.

NON-CONTACT AC VOLTAGE DETECTOR

WARNING: Risk of electrocution. Before use, always test the Voltage Detector on a

known live circuit to verify proper operation.

1. The Voltage Detector works in any function switch position, including OFF.

2. Place the detector probe tip next to the hot conductor or insert into the hot side

of the electrical outlet.

3. If AC voltage is present, the detector light will illuminate.

NOTE: The conductors in electrical cord sets are often twisted. For best results,

rub the probe tip along a length of the cord to assure placing the tip in

close proximity to the live conductor.

NOTE: The detector is designed with high sensitivity. Static electricity or other

sources of energy may randomly trip the sensor. This is normal

operation.

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DM220 V3.0 01/065

FLASHLIGHT

Press and hold the button to turn the flashlight on. Release the button to turn

the flashlight off.

AUTO POWER OFF

The auto off feature will turn the meter off after 15 minutes.

LOW BATTERY INDICATION

The icon will appear in the lower left corner of the display when the battery

voltage becomes low. Replace the battery when this appears.

Maintenance

WARNING: To avoid electric shock, disconnect the test leads from any source

of voltage before removing the battery cover.

WARNING: To avoid electric shock, do not operate your meter until the battery

cover is in place and fastened securely.

This MultiMeter is designed to provide years of dependable service, if the following

guidelines are followed:

1. KEEP THE METER DRY. If it gets wet, wipe it off.

2. USE AND STORE THE METER IN NORMAL TEMPERATURES. Temperature

extremes can shorten the life of the electronic parts and distort or melt plastic

parts.

3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage

the electronic parts or the case.

4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth.

DO NOT use chemicals, cleaning solvents, or detergents.

5. USE ONLY FRESH BATTERIES OF THE RECOMMENDED SIZE AND TYPE.

Remove old or weak batteries so they do not leak and damage the unit.

6. IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME, the

batteries should be removed to prevent damage to the unit.

BATTERY INSTALLATION

WARNING: To avoid electric shock, disconnect the test leads from any source of

voltage before removing the battery cover.

1. Turn power off.

2. Open the rear battery cover by removing the Phillips head screw located on the

bottom of the meter.

3. Insert the batteries into battery holder, observing the correct polarity.

4. Put the battery cover back in place. Secure with the screw.

WARNING: To avoid electric shock, do not operate the meter until the battery

cover is in place and fastened securely.

NOTE: If your meter does not work properly, check the batteries to make sure that

they are still good and that they are properly inserted.

RESETTABLE FUSE

1. The fast acting, 0.2A/500V resettable fuse will open if the current limits of the

meter are exceeded.

2. The fuse will automatically reset itself when the suspect current is removed

from the meter’s input.

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DM220 V3.0 01/066

Specifications

Function Range Resolution Accuracy

400mV 0.1mV

4V 0.001V

40V 0.01V

±(0.8% reading + 2 digits)

400V 0.1V

DC Voltage

600V 1V

±(1.0% reading + 2 digits)

50 to 60Hz

4V 1mV

40V 0.01V ±(1.0% reading + 5 digits)

400V 0.1V

AC Voltage

600V 1V ±(1.5% reading + 5 digits)

400µA 0.1µA

4000µA 1µA

40mA 0.01mA

DC Current

200mA 0.1mA

±(2.0% reading + 2 digits)

50 to 60Hz

400µA 0.1µA

4000µA 1µA

40mA 0.01mA

AC Current

200mA 0.1mA

±(2.5% reading + 5 digits)

400Ω0.1Ω±(0.8% reading + 5 digits)

4kΩ0.001kΩ±(1.2% reading + 5 digits)

40kΩ0.01kΩ

400kΩ0.1kΩ±(0.8% reading + 2 digits)

4MΩ0.001MΩ±(3.0% reading + 5digits)

Resistance

40MΩ0.01MΩ±(5.0% reading + 5digits)

4nF 0.001nF ±(5.0% reading + 0.6nF)

40nF 0.01nF ±(3.5% reading + 30 digits)

400nF 0.1nF

4µF 0.001µF ±(3.0% reading + 20 digits)

40µF 0.01µF

apacitance

200µF 0.1µF

±(5.0% reading + 30 digits)

9.999Hz 0.001Hz

99.999Hz 0.001Hz

999.9Hz 0.1Hz

Frequency

9.999kHz 0.001kHz

±(1.0% reading + 2 digits)

Duty Cycle 0.5 to 99% 0.5% ±(2.0% reading + 5 digits)

NOTE: Accuracy specifications consist of two elements:

•(% reading) – This is the accuracy of the measurement circuit.

•(+ digits) – This is the accuracy of the analog to digital converter.

NOTE: Accuracy is stated at 65oF to 83oF (18oC to 28oC) and less than 75% RH.

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DM220 V3.0 01/067

Diode Test Test current 1mA, open circuit voltage 1.5V DC typical

Continuity Check Audible sound if the resistance is less than 100Ω

Non-Contact Volt detect 100 to 600VAC; 50/60Hz

Input Impedance >7.5MΩ(VDC & VAC)

AC Response Average responding

ACV Bandwidth 50Hz to 60Hz

Display 4000 count 3-3/4 digit liquid crystal

Overrange indication “OL” is displayed

Polarity Automatic (no indication for positive); Minus (-) sign for

negative

Auto Power Off 15 minutes (approx)

Low Battery Indication “ ” is displayed if battery voltage drops below operating

voltage

Batteries Two 1.5 volt AAA

Fuses mA, µA ranges; 0.2A/500V fast acting resettable fuse

Operating Temperature32ºF to 104ºF (0ºC to 40ºC)

Storage Temperature 14oF to 122oF (-10oC to 50oC)

Operating Humidity Max 80% up to 87ºF (31ºC) decreasing linearly to 50% at

104ºF (40ºC)

Storage Humidity <80%

Operating Altitude 7000ft. (2000meters) maximum.

Weight 0.319lb (145g)

Size 4.09” x 2.1” x 1.2” (104 x 55 x 32.5mm)

Safety For origin of installation use and in accordance with the

requirements for double insulation per EN61010-1 and

IEC61010-1 2nd Edition (2001) to Overvoltage Category IV

600V and Category III 1000V; Pollution Degree 2.

Warranty

EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts

and workmanship for three years from date of shipment (a six month limited warranty applies to

sensors and cables). If it should become necessary to return the instrument for service during or

beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210

for authorization or visit our website www.extech.com for contact information. A Return

Authorization (RA) number must be issued before any product is returned to Extech. The sender is

responsible for shipping charges, freight, insurance and proper packaging to prevent damage in

transit. This warranty does not apply to defects resulting from action of the user such as misuse,

improper wiring, operation outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied warranties or merchantability

or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or

consequential damages. Extech's total liability is limited to repair or replacement of the product.

The warranty set forth above is inclusive and no other warranty, whether written or oral, is

expressed or implied.

Support line (781) 890-7440

Technical support: Extension 200; E-mail: [email protected]

Repair & Returns: Extension 210; E-mail: [email protected]

Product specifications subject to change without notice

For up-to-the-minute product information, visit our website: www.extech.com

Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA02451

www.burntec.com

DM220 V3.0 01/068

www.burntec.com

DM220 V3.0 01/069

CA V

82xxx

AutoRanging DMM

CAT III - 1000 V

CATIV-600 V

Manual del usuario

MMD de bolsillo con escala automática

Modelo DM220

Introducción

Agradecemos su compra del multímetro de escala automática modelo DM220 de

Extech. Este medidor lee voltaje CA/CD, corriente CA/CD con fusible de reposición

de 200mA/500V, resistencia, capacitancia, frecuencia, ciclo de trabajo, prueba de

diodo y continuidad. Ofrece un detector integrado de voltaje CA sin contacto, más

linterna. El uso y cuidado apropiado de este medidor le proveerá muchos años de

servicio confiable.

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DM220 V3.0 01/0610

Seguridad

Esta señal adyacente a otra señal, terminal o dispositivo en

operación indica que el usuario deberá buscar la

explicación en las Instrucciones de operación para evitar

lesiones a su persona o daños al medidor.

Esta señal de ADVERTENCIA indica que existe una

situación potencialmente peligrosa, que si no se evita,

podría resultar en la muerte o lesiones graves.

Esta señal indica que un dispositivo está completamente

protegido mediante doble aislante o aislamiento reforzado.

Este medidor ha sido diseñado para uso seguro, sin embargo debe ser operado

con precaución. Para operar con seguridad deberá cumplir las reglas

enumeradas a continuación.

1. NUNCA aplique al medidor voltaje o corriente que exceda los límites

máximos especificados:

Límites de protección de alimentación

Función Entrada máxima

V CD o V CA 600V CD/CA

µA CA/CD 200mA 500V fusible de acción rápida de

reposición

Resistencia, prueba de diodo,

prueba de continuidad

600V CD/CA

2. EXTREME SUS PRECAUCIONES al trabajar con voltajes mayores a 25VCA

o 35VDC. Estos voltajes son considerados un peligro de choque.

3. NO mida voltajes si el voltaje en el enchufe de entrada "COM" excede 600V

sobre tierra física.

4. NUNCA conecte los cables del medidor a una fuente de voltaje cuando el

selector de función esté en modo de corriente, resistencia o diodo. Hacerlo

puede dañar al medidor.

5. SIEMPRE descargue los filtros capacitores en las fuentes de tensión y

desconecte la energía al realizar pruebas de diodo o de resistencia.

6. SIEMPRE apague la tensión y desconecte los cables de prueba antes de

abrir la tapa para reemplazar las baterías o fusibles.

7. NUNCA opere el medidor a menos que la tapa posterior y la tapa de la

batería y fusibles estén colocadas y aseguradas.

Descripción

1. Punta del detector de V-CA sin contacto

2. Luz indicadora de VCA sin contacto

3. LCD 3-3/4 dígitos (4000 cuentas)

4. Interruptor de modo

5. Botón para linterna

6. Selector de función

7. Tapa de baterías

8. Cables de prueba

9. Botón Hz/% Ciclo de trabajo

10. Linterna

ADVERTEN

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