Extech Instruments DM220 User manual

CA V
82xxx
Vr
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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2
3
4
5
6
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10
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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
C
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 [phone] 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.
Copyright ©2006 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
Support line [phone]
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
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DM220 V3.0 01/068
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DM220 V3.0 01/069
CA V
82xxx
Vr
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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