Duratool D03145 User manual

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Model: D03145
Multimeter with
Automotive Ranges

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CONTENTS
Page Number Description
3 What's Included?
3 Important Safety Information
3 General Specification
4 Electrical Specification
4 DC Voltage
4 AC Voltage
4 DC Current
4 AC Current
4 Temperature
5 Ohm
5Dwell Angle
5 Tacho
5 AC & DC Voltage Measurement
5 AC & DC Current Measurement
6 Resistance Measurement
6 Temperature Measurement
6 Diode & Continuity Test
6 Transistor hFE Test (w/multifunction adaptor)
6Measuring Dwell Angle
7 Testing Duty Cycle
7Measuring Tacho
7 Battery & Fuse Replacement
7 Recycling Information

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IMPORTANT SAFETY INFORMATION
Please read these instructions carefully before use and retain for future
reference.
• When using electrical appliances basic safety precautions should always be
followed.
• Do not operate the meter if the test leads are damaged in any way. Damaged
leads should be replaced.
• Do not exceed the input
limits shown in the table
(right).
• To avoid damage to the
meter do not apply more
than 500V between
any terminal and earth
ground.
• Disconnect the test leads
from the circuit under
test before changing test
ranges.
• Use caution when working above 60V DC or 25V AC rms, as such voltages pose a
shock hazard.
• This meter is designed for indoor use only.
• Replace the battery as soon as the low battery indicator appears.
• Turn the meter off when it is not in use and remove the battery when not in use for
a long period of time.
• Do not store the meter in a place of direct sunlight, high temperature or high
humidity.
Function Range Input Terminals Maximum Input
DCV 2~600V VΩ COM 600V DC
ACV 2~600V
OHM VΩ COM 250V DC/AC
Diode
DCA 200mA mA COM 200mA DC/AC
ACA 200mA
DCA 10A 10A COM 10A DC/AC
ACA 10A
• One multimeter
• One pair of test leads
WHAT’S INCLUDED?
GENERAL SPECIFICATION
• One multifunction adaptor
• One user manual
Display 3½ digit LCD
Measurement Rate 2-3/sec
Overrange Indication “1” will be displayed
Polarity Indication Automatic negative
Low Battery Indication “ ” displayed
Overload Protection Full range
Operating Temperature 0°C to 40°C, 0 to 75% RH
Storage Temperature -10°C to 50°C, 0 to 75% RH
Battery Type One 9V battery IEC 6F22, NEDA 1604
Dimensions 176 x 88 x 38mm (L x W x H)
Weight 310g (including battery)
+ -

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ELECTRICAL SPECIFICATION
• Accuracy is given ± (% of reading + number of least significant digits) for one year,
at 23°C ± 5°C RH<75%.
DC VOLTAGE
Range Resolution Accuracy
200mV 0.1mV ± (0.5% + 3 digits)
2V 1mV
± (0.8% + 2 digits)20V 10mV
200V 0.1V
600V 1V ± (1.0% + 2 digits)
• Input impedance: 10MΩ.
AC VOLTAGE
Range Resolution Accuracy
2V 1mV
± (0.8% + 3 digits)20V 10mV
200V 0.1V
600V 1V ± (1.2% + 3 digits)
• Input impedance: 10MΩ.
• Frequency range: 40 ~ 400Hz.
DC CURRENT
Range Resolution Accuracy
2mA 1µA ± (1.8% + 2 digits)
20mA 10µA ± (1.8% + 2 digits)
200mA 0.1mA ± (2.0% + 2 digits)
10A 10mA ± (2.0% + 10 digits)
• Measuring voltage drop: 200mV.
AC CURRENT
Range Resolution Accuracy
2mA 1µA ± (2.0% + 3 digits)
20mA 10µA ± (2.0% + 3 digits)
200mA 0.1mA ± (2.0% + 5 digits)
10A 10mA ± (2.5% + 10 digits)
• Measuring voltage drop: 200mV.
• Frequency range: 40 ~ 400Hz.
TEMPERATURE
Range Resolution Accuracy
-40°C ~ 400°C 1°C ± (1.0% + 4)
400°C ~ 1000°C ± (1.5% + 15)
• With K-type thermocouple.

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OHM
Range Resolution Accuracy
200Ω 0.1Ω ± (1.0% ± 10)
2kΩ 1Ω
± (1.0% ± 4)
20kΩ 10Ω
200kΩ 100Ω
2MΩ 1kΩ
20MΩ 10kΩ ± (1.0% ± 10)
DWELL ANGLE
Range Scope (°) Resolution Accuracy
4 CYL 0 ~ 90
0.1° ± (2.0%
± 5)
6 CYL 0 ~ 60
8 CYL 0 ~ 45
TACHO
Range Scope (°) Resolution Accuracy
4 CYL
20,000
PRM 10 x RPM ± (1.5% ± 5)
6 CYL
8 CYL
AC & DC VOLTAGE MEASUREMENT
• Set the function range switch at the required position.
• Connect the black test lead to the "COM" terminal and the red test lead to the "VΩ"
input terminal.
• Connect the test leads to the measuring point and the polarity of the red lead
connection will be indicated at the same time as the voltage, on the LCD.
• If the voltage to be tested is unknown, set the Function Range switch to the
highest range.
Note: When only figure "1" is displayed, overrange is being indicated and the function
range switch should to be set to a higher range.
WARNING: Do not attempt to measure voltage above 1000V as there is a danger of
damaging the internal circuitry.
AC & DC CURRENT MEASUREMENT
• Connect the black test lead to the "COM" terminal and the red test lead to the
"mA" terminal for a maximum of 0.2A.
• Set the function range switch at the required position.
• Connect the test leads to the measuring points and read the display value. The
polarity at the red test lead connection will be indicated at the same time as the
current.

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• If the current range is unknown beforehand, set the function range to the highest
range and then reduce it until the desired range is obtained.
Note: When only figure "1" is displayed, overrange is being indicated and the function
range switch should be set to a higher range.
RESISTANCE MEASUREMENT
• Connect the black test lead to the "COM" terminal and the red test lead to the "VΩ"
input terminal.
• Set the function range switch to the "Ω" range.
• Connect the test leads across the resistance under measurement and read the
display value. The polarity of the red test lead is positive.
Note: When the input is not connected i.e. at an open circuit, the figure "1" will be
displayed for the overrange condition.
If the resistance value being measured exceeds the maximum value of the range
selected, an overrange indication "1" will be displayed and the function range switch
should be set to a higher range.
TEMPERATURE MEASUREMENT
• Set the function range switch to the "TEMP" position.
• Connect the black plug of the thermocouple to the "COM" and the red plug to the
"mA" input terminal. The polarity of the red test lead is positive.
• Place the working end on, or inside, the object being tested.
• The value of the temperature is shown on the display in "°C".
• The testing temperature is displayed automatically when the thermocouple is put
into the testing terminals.
• The surrounding temperature is shown when the circuit of the sensor is cut off.
• The limit temperature measured by the thermocouple, given together with the
instrument, is 250°C.
DIODE & CONTINUITY TEST
• Set the function range switch to the " " position.
• Connect the black test lead to the "COM" terminal and the red test lead to the "VΩ"
input terminal. The polarity of the red test lead is positive.
• This range has an "Audible Continuity Test" function. The built-in buzzer sounds if
the resistance between two probes in less than 30 ± 20Ω.
• Connect the test leads across the diode and read the display value.
TRANSISTOR hFE TEST (W/MULTIFUNCTION ADAPTOR)
• Set the function range switch to the "hFE" position.
• Set the multi-function adaptor and insert it into the "COM" and "mA" terminal. Be
sure to connect "-" to "COM" and "+" to "mA".
• Ensure that the transistor is "NPN" or "PNP" type.
• Ensure that the transistor is inserted correctly into the E.B.C connector.
• The LCD will show the approximate transistor hFE value.
MEASURING DWELL ANGLE
• Connect the black test lead to the "COM" jack and the red test lead to the "VΩ"
jack.
• Set the rotary switch to the desired "DWELL" range, according to the cylinders of
the motor to be measured.

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• Connect the black test lead to the iron bars or the negative pole of the battery and
the red test lead to the distributor terminal of the ignition coil.
• Start the motor to set it in idle-speed, then read the value of the dwell angle on the
LCD.
TESTING DUTY CYCLE
• Connect the black test lead to the "COM" jack and the red test lead to the "VΩ"
jack.
• Set the rotary switch to the "DUTY" position.
• Connect the test leads to the circuit to be measured.
• Read the measurement on the LCD.
MEASURING TACHO
• Connect the black test lead to the "COM" jack and the red test lead to the "VΩ"
jack.
• Set the rotary switch to the desired "TACH x 10" range, according to the cylinders
of the motor to be measured.
• Connect the black test lead to the iron bars of the negative pole of the battery and
the red test lead to the distributor terminal of the ignition coil.
• Start the motor, read the display, divide the displayed value by the number of
cylinders, and the result is the turning speed (tacho).
BATTERY & FUSE REPLACEMENT
• Battery and fuse replacement should only be done after the test leads have been
disconnected and the power is off.
• Using a screwdriver, loosen the screws and remove the case bottom.
• Remove the old battery and replace it with a new one of the same specification
(9V battery IEC 6F22, NEDA 1604).
• Similarly, when replacing the fuse do so with the same specification:
- Fuse 1: 0.5A/600V, dimensions 5 x 20mm,
- Fuse 2: 10A/600V, dimensions 5 x 20mm.
• Replace the case bottom and reinstall the three screws. Never operate the meter
unless the case bottom is fully closed.
V.1.1
INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL &
ELECTRONIC EQUIPMENT.
When this product has reached the end of its life it must be treated as Waste Electrical & Electronic
Equipment (WEEE). Any WEEE marked products must not be mixed with general household waste,
but kept separate for the treatment, recovery and recycling of the materials used. Contact your local
authority for details of recycling schemes in your area.
Made in China.
PO Box 13362 Dublin 2
PR2 9PP