King Tony 9DM1371 Manuale utente

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AUTORANGING DIGITAL MULTIMETER

INSTRUCTION MANUAL

NO.9DM1371

CONTENTS

TITLE PAGE

SAFETY INFORMATION................................ 1

FEATURES..................................................... 2

1.SPECIFICATIONS....................................... 3

1-1 General information............................. 3

1-2 Electrical specications..........

.............

2.PARTS & CONTROLS...

............................

2-1 Name of parts and positions

...............

2-2 Operating Instruction

......

..................... 14

2-2-1 Scale ranging

......

............................. 14

2-2-2 DC Voltage measurement

................

2-2-3 AC Voltage measurement

................

2-2-4 AC/DC Current measurement

..........

2-2-5 Diode Test

......

.................................. 17

2-2-6 Resistance measurement

................

2-2-7 Continuity measurement

..................

2-2-8 Frequency measurement

.................

3.BATTERY & FUSE REPLACEMENT

.........

3-1 Battery check & replacement

..............

3-2 FUSE replacement

......

........................ 22

4.MAINTENANCE

......

.................................... 23

Read First : Safety Information

• Never use the meter if the meter or test leads

look damaged.

• Be sure the test leads and switch are in the

correct position for the desired measurement.

• Never measure resistance or testing acoustic

continuity in a circuit when power is applied.

• Never connect the probe to a voltage source

when the test leads are plugged into the 10 A

input jack .

• Never connect the probe to a voltage source

when the function are in uA or mA range.

• Never apply more than rated voltage between

any input jack and earth ground.

• Be careful when working with voltages above

60 V DC or 30 V AC rms. Such voltages pose a

shock hazard.

• Keep your ngers behind the nger guards on

the test probes when making measurements.

• To avoid false readings, replace the battery

immediately, When symbol appears.

Symbols:

Read Safety Information First

Dangerous Voltage May Be Present

Meter is protected throughout by double

insulation or reinforced insulation.

When servicing, use only specied replacement parts.

Comply with IEC1010-1 CAT II

1. SPECIFICATIONS

1-1 General information

Environment conditions:

Maintenance & Clearing:

Display:

• Installation Categories II

• Pollution Degree 2

• Altitude up to 2000 meters

• Indoor use only

• Relatively humidity: 80% max.

• Operation Ambient temp: 0~40°C

• Repairs or servicing not covered in this

manualshouldonlybyqualiedpersonal.

• Periodically wipe the case with a dry cloth and

detergent. Do not use abrasives or solvents

on this instrument.

• Digital: 4000 counts

• Analog: 42 segments

Display Symbol Denition :

Low

Battery

AC Symbol

DC Symbol

Manual Range

Bargraph Indication

Relative

Reading

Data

Hold

Continuity

Beeper Diode

Low Battery

Auto Range

Relative Reading

Data Hold

Maximum Value

Minimum Value

Continuity Beeper

Diode

Alternating current or voltage

Direct current or voltage

Negative polarity

Manual Range

Bargraph indication

Frequency

Voltage

Millvolt ( 1 X 10-3 volt)

Ampere (amps) Current

Microampere ( 1 X 10-6 amp)

Milliampere ( 1 X 10-3 amp)

Ohm. Resistance

Kilohm ( 1 X 103ohm). Resistance

Megohm ( 1X 106ohm). Resistance

Sampling Rate:

Digital: 2 times/sec

Analog: 20times/sec for Bargraph indication.

Over Range Indication: LCD will show “OL”.

Low Battery Indication:

The is displayed when the battery voltage

drop below the proper operating range.

Battery type: 1.5V.SIZE AAA Battery

Battery Life: 500hrs typical (alkaline Battery)

Polarity: ” ” Indicates negative input.

Auto Power Off Time: 30 minutes

Operating Temperature and Humidity:

0°C to 40°C (32°F to 104°F) below 80% RH

Storage Temperature and Humidity:

-10°C to 60°C (14°F to 140°F) below 70% RH

Temperature Coefcient:

0.1 x ( Specied accuracy ) / °C (<18°C or >28°C)

Weight: Approx.220g (7.76oz)

Dimensions (L×W×H):

150mm×72mm×35mm (5.9”×2.83”×1.38”)

Accessories:

Test leads, Spare fuse (0.5A/250V), Batteries

and Instruction manual.

Electromagnetic / Compatibility:

Vac and Aac only: RF eld = 3V/m

Total accuracy = specied accuracy+2.0% of range

Safety:

600V CAT II Regulation EN61010; Part 1: 1993

Certication:

1-2 Electrical Specications

Accurace specication:

±([… %of reading]+ […number of least signicant

digits]) at 18°C to 28°C ( 64°F to 82°F ) 80%RH

Diode Tester

Continuity Beeper

DC Voltage (Auto Range)

Range Resolution Accuracy Test

Current

Test

Voltage

Overload

Protection

1mV 1%+2 <1mA <3.2V 600V rms

Range Active Range Test Voltage Overload Protection

Under40Ω <1.5V 600V rms

Range Resolution Accuracy Input Impedance Overload

Protection

400mV 0.1mV 0.5%+2 >1000MΩ 750V rms

4V 1mV 0.5%+2 11MΩ 750V rms

40V 10mV 0.5%+2 10MΩ 750V rms

400V 100mV 0.5%+2 10MΩ 750V rms

600V 1V 0.8%+2 10MΩ 750V rms

AC Voltage ( Auto Range)

AC Current(uA,mA,Auto Range)

DC Current (uA,mA,Auto Range)

Ohms (Auto Range)

Frequency (Auto Range)

Range Resolution Accuracy

Input

Impedance

Overload

Protection

45Hz~400Hz 400Hz~1KHz

400mV 0.1mV 1%+5

(45Hz~100Hz) >1000MΩ 750V rms

4V 1mV 1%+4 1.5%+4 11MΩ 750V rms

40V 10mV 1%+4 1.2%+4 10MΩ 750V rms

400V 100mV 1%+4 1.2%+4 10MΩ 750V rms

600V 1V 1%+4 1.2%+4 10MΩ 750V rms

Range Resolution Accuracy

Burden

Voltage Overload Protection

45Hz~500Hz 500Hz~1KHz

400uA 0.1uA 1.3%+5 1.6%+5 <0.25V rms 0.5A / 250V Fast Blow Fuse

4000uA 1uA 1.3%+5 1.6%+5 <1V rms 0.5A / 250V Fast Blow Fuse

40mA 10uA 1.3%+5 1.6%+5 <0.25V rms 0.5A / 250V Fast Blow Fuse

400mA 100uA 1.3%+5 1.6%+5 <1.5V rms 0.5A / 250V Fast Blow Fuse

10A 10mA 1.5%+5 1.8%+5 <0.35V rms 10A / 250V Fast Blow Fuse

Range Resolution Accuracy Burden

Voltage Overload Protection

400uA 0.1uA 1%+2 <0.25V 0.5A / 250V Fast Blow Fuse

4000uA 1uA 1%+2 <1V 0.5A / 250V Fast Blow Fuse

40mA 10uA 1%+2 <0.25V 0.5A / 250V Fast Blow Fuse

400mA 100uA 1%+2 <1.5V 0.5A / 250V Fast Blow Fuse

10A 10mA 1.2%+2 0.35V 10A / 250V Fast Blow Fuse

Range Resolution Accuracy Test

Voltage Overload Protection

400Ω 0.1Ω 0.75%+2 <1.5V DC 600V rms

4KΩ 1Ω 0.75%+2 <1.5V DC 600V rms

40KΩ 10Ω 0.75%+2 <1.5V DC 600V rms

400KΩ 100Ω 0.75%+2 <1.5V DC 600V rms

4MΩ 1KΩ 0.75%+2 <1.5V DC 600V rms

40MΩ 10KΩ 0.75%+3 <1.5V DC 600V rms

Range Resolution Accuracy Sensitivity Overload Protection

4KHz 1Hz 0.1%+1 <300mV pp 600V rms

40KHz 10Hz 0.1%+1 <300mV pp 600V rms

400KHz 100Hz 0.1%+1 <300mV pp 600V rms

4MHz 1KHz 0.1%+1 <3V pp 600V rms

40MHz 10KHz 0.1%+1 <3V pp 600V rms

10 11

VA A

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AV

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2. PARTS & CONTROLS

2-1 Name of parts and position

LCD Display:

Measured values, unit, function and decimal

points symbols are displayed.

Relative Button:

Press button to enter the relative mode. The

Display is zeroed , and the reading is stored as

reference value for subsequent measurements. Press it

again, the “ ” annunciator blinking and stored relative

value will display . Press and hold down button for

1 second to exit the relative mode.

Auto-range & Manual Range Button:

• Press to select the Manual Range mode and the

annunciator turn on and The meter remains in the same

range it was.

• In the Manual Range mode, each time you press

button, the range (and the input range annunciate)

increases, and a new value is displayed.

• If the meter is in the highest range, the next range is

change to the lowest range. To exit the Manual Range

mode and return to Auto Range mode, Press and hold

down for 1 seconds, the AUTO annunciate turns

back on.

12 13

MAX/MIN recording button:

Press button to enter the maximum and minimum

recording mode, select the proper range before using

MAX/MIN to ensure that reading value will not exceed

the measurement range. Press the button once to select

MAX value.

Press it again to select MIN value, and press again to

select current value with annunciator blinking.

Press and hold down button for 1 second to exit

the MAX MIN mode.

AC/DC Current Select and / Ω Select Button:

• To select function AC or DC in current Ampere range.

• To select continuity measurements or Resistance

measurement at / Ωrange.

Function Selector Switch:

For power OFF and selection of desired Function

Range.

Tilt stand:

10A Measuring Connector:

To connect positive lead (red test lead)for current

measurement below 10A.

VΩ,μA, mA, Hz, Measuring Connector:

To connect positive lead ( red test lead ) for voltage,

diode, frequency, microampere, milliampere and

continuity measurement.

Note:

To avoid blowing an input fuse, use the 10 A jack

until you are sure that the current is less than

400mA. When Doing Current Measurement.

COM Measuring Connector:

To connect negative lead (black test lead) for voltage,

frequency, current, resistance, diode and continuity

measurement.

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

14 15

2-2 Name of parts and position

2-2-1 Ranging

2-2-2 DC Voltage Measurements

2-2-3 AC Voltage Measurements

The meter defaults to autorange mode when you

turn on the Meter. Manual ranging is available in

V , V , ohms , A , A , frequency.

To return to autorange, press for 1 second

or turn the rotary switch.

Connect red test lead to “ V ” jack and black test lead to “ COM ” jack.

Set Range Switch to V range.

Connect the test leads IN PARALLEL to the circuit being measured.

Read the Voltage value on LCD.

Connect red test lead to “ V ” jack and black test lead to “ COM ” jack.

Set Range Switch to V range.

Connect the test leads IN PARALLEL to the circuit being measured.

Read the Voltage value on LCD.

WARNING

Maximum Input Voltage is 600V AC/DC.Do not attempt to Take

any voltage measurement that may exceed to avoid Electrical

shock hazard and/or damage to this instrument.

Maximum Input Voltage is 600V AC/DC. Do not attempt to Take

any voltage measurement that may exceed to avoid Electrical

shock hazard and/or damage to this instrument.

16 17

2-2-4 AC/DC Current Measurements 2-2-5 Diode Tests

Connect red test lead to the “mA / uA ”jack for Current measurements

up to 400mA.( For measuring Current between 400mA to 10A ,

Connect red test lead to “ 10 A ” jack ) Connect black test lead to“ COM

” jack.

Set Range selector Switch to desired A range and press DC/AC button

to select AC/DC function.

Cut the power to the circuit to be tested and Connect the instrument IN

SERIES with the circuit with the black test lead on the negative “ - ”side

and the red lead on the positive “ + ”side being measured.

Apply power and read the ampere value on LCD.

Connect red test lead to “ ” jack and black test lead to “COM ” jack.

Set Range selector Switch to “ ” range.

Connect the red test lead to the anode side and black test lead to the

cathode side of the diode being tested.

Read forward Voltage( Vf) value on LCD.

If the polarity of test leads are reversed with diode polarity , the

digital reading show “ OL ”.This can be used for distinguishing anode

and cathode terminal of a diode.

WARNING WARNING

To avoid injury, do not attempt a current measurement if the

open circuit voltage exceeds the rate voltage of the meter.

Before taking any in-circuit measurement, remove power from

the circuit being tested and discharge all capacitors in the

circuit.

uA . mA measurement Amp measurement

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