King Tony 9DM1371 User manual

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AUTORANGING DIGITAL MULTIMETER
INSTRUCTION MANUAL
NO.9DM1371

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CONTENTS
TITLE PAGE
SAFETY INFORMATION................................ 1
FEATURES..................................................... 2
1.SPECIFICATIONS....................................... 3
1-1 General information............................. 3
1-2 Electrical specications..........
............. 7
2.PARTS & CONTROLS...
............................ 10
2-1 Name of parts and positions
............... 10
2-2 Operating Instruction
...... ..................... 14
2-2-1 Scale ranging
...... ............................. 14
2-2-2 DC Voltage measurement
................ 14
2-2-3 AC Voltage measurement
................ 15
2-2-4 AC/DC Current measurement
.......... 16
2-2-5 Diode Test
...... .................................. 17
2-2-6 Resistance measurement
................ 18
2-2-7 Continuity measurement
.................. 19
2-2-8 Frequency measurement
................. 20
3.BATTERY & FUSE REPLACEMENT
......... 21
3-1 Battery check & replacement
.............. 21
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.

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• 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

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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

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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

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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

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V
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VA A
A 
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V
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A
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
AV
A V
A 
VA
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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.
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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.
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MIN
MAX
MIN
MAX
MIN
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MIN

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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
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.
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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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