INTRODUCTION
Thank you for purchasing this Clarke Multi-Range Digital Multimeter.
This instrument is a compact, rugged, battery operated hand held 3½ digit,
digital multimeter. It is designed to measure AC and DC voltage, AC and
DC current, Resistance, Diode, Capacitance and for testing Transistors,
Continuity, and Thermocouple temperature.
The dual-slope A-D converter uses C-MOS technology for auto zeroing,
polarity selection and over-range indication.
It is an ideal instrument for use in the field, laboratories, workshops, and for
hobby and home applications.
GUARANTEE
This product is guaranteed against faults in manufacture for 12 months from
purchase date. Please keep your receipt as proof of purchase.
This guarantee is invalid if the product has been abused or tampered with
in any way, or not used for the purpose for which it is intended.
The reason for return must be clearly stated.
This guarantee does not affect your statutory rights.
FEATURES
•
Push button ON/OFF power switch.
•
Auto Power OFF after approx 40 min.
•
Single 32 position rotary switch for FUNCTION and RANGE selection.
•
Auto over-range indication, with “1” being displayed on the LCD.
•
Automatic reverse polarity indication on DC ranges.
•
All ranges (except 10A current ranges) fully protected.
•
DC Voltage measurement 200mV to 1,000V.
•
AC Voltage measurement 2mV to 700V rms.
•
DC current measurement 20µA to 10A.
•
AC current measurement 200µA to 10A rms.
•
Resistance measurement 200
Ω
to 200M
Ω.
•
Diode testing with 1mA fixed current.
•
Transistor hFE test with 10µA
•
Temperature measurement.
•
Frequency measurement.
•
Holster with 2 position stand, and test lead holders to ease the taking
of readings whilst holding the meter.
3
Note:
1. If the resistance value being measured exceeds the maximum value of
the range selected, an over-range indication will be displayed(“1”).
Select a higher range.
For resistance of approx. 1 Megohm and above, the meter may take a
few seconds to become stable. This is normal for high resistance readings.
2.. When the input is not connected, i.e. an open circuit, the figure’1’ will be
displayed for an over-range condition.
3. When testing in-circuit resistance, ensure all power has been removed
and all capacitors are fully discharged.
4. When using the 200Megohm range, the display is 10 counts. These counts
must be subtracted from the reading.... eg. when measuring a 100M
W
resistance, the reading will display 101.0.
The correct measuring result iis 101.0 - 1.0 = 100M
W
Diode Measurement
1. Connect the BLACK test lead to the COM jack and the RED test lead to the
V/
Ω
jack.
(Note: The polarity of the RED test lead is “+”).
2. Set the FUNCTION switch to the
position and connect the test
leads across the diode under test, red lead to the anode, black to the
cathode. Display shows the approx. forward voltage drop of the diode.
Continuity Test.
1. Connect the BLACK test lead to the COM jack and the RED test lead to the
V/
Ω
jack.
(Note: The polarity of the RED test lead is “+”).
2. Set the FUNCTION switch to the
position and Connect the test
leads to two points of circuit, if the resistance is lower than approx. 70
Ω
,
the buzzer sounds.
10
Transistor hFE Test
1. Set the FUNCTION switch to the hFE range.
2. Determine whether the transistor is NPN or PNP and locate the Emitter,
Base and Collector leads. Insert the leads into the proper holes in the
socket on the front panel.
3. Display will read approx. hFE value at the test condition/Base Current
10µA VCE 3.2V
INTRODUCTION
Thank you for purchasing this Clarke Multi-Range Digital Multimeter.
This instrument is a compact, rugged, battery operated hand held 3½ digit,
digital multimeter. It is designed to measure AC and DC voltage, AC and
DC current, Resistance, Diode, Capacitance and for testing Transistors,
Continuity, and Thermocouple temperature.
The dual-slope A-D converter uses C-MOS technology for auto zeroing,
polarity selection and over-range indication.
It is an ideal instrument for use in the field, laboratories, workshops, and for
hobby and home applications.
GUARANTEE
This product is guaranteed against faults in manufacture for 12 months from
purchase date. Please keep your receipt as proof of purchase.
This guarantee is invalid if the product has been abused or tampered with
in any way, or not used for the purpose for which it is intended.
The reason for return must be clearly stated.
This guarantee does not affect your statutory rights.
FEATURES
•
Push button ON/OFF power switch.
•
Auto Power OFF after approx 40 min.
•
Single 32 position rotary switch for FUNCTION and RANGE selection.
•
Auto over-range indication, with “1” being displayed on the LCD.
•
Automatic reverse polarity indication on DC ranges.
•
All ranges (except 10A current ranges) fully protected.
•
DC Voltage measurement 2mV to 1,000V.
•
AC Voltage measurement 200mV to 700V rms.
•
DC current measurement 20µA to 10A.
•
AC current measurement 200µA to 10A rms.
•
Resistance measurement 200
Ω
to 200M
Ω.
•
Diode testing with 1mA fixed current.
•
Transistor hFE test with 10µA
•
Temperature measurement.
•
Frequency measurement.
•
Holster with 2 position stand, and test lead holders to ease the taking
of readings whilst holding the meter.
3
Note:
1. If the resistance value being measured exceeds the maximum value of
the range selected, an over-range indication will be displayed(“1”).
Select a higher range.
For resistance of approx. 1 Megohm and above, the meter may take a
few seconds to become stable. This is normal for high resistance readings.
2.. When the input is not connected, i.e. an open circuit, the figure’1’ will be
displayed for an over-range condition.
3. When testing in-circuit resistance, ensure all power has been removed
and all capacitors are fully discharged.
4. When using the 200Megohm range, the display is 10 counts. These counts
must be subtracted from the reading.... eg. when measuring a 100M
W
resistance, the reading will display 101.0.
The correct measuring result iis 101.0 - 1.0 = 100M
W
Diode Measurement
1. Connect the BLACK test lead to the COM jack and the RED test lead to the
V/
Ω
jack.
(Note: The polarity of the RED test lead is “+”).
2. Set the FUNCTION switch to the
position and connect the test
leads across the diode under test, red lead to the anode, black to the
cathode. Display shows the approx. forward voltage drop of the diode.
Continuity Test.
1. Connect the BLACK test lead to the COM jack and the RED test lead to the
V/
Ω
jack.
(Note: The polarity of the RED test lead is “+”).
2. Set the FUNCTION switch to the
position and Connect the test
leads to two points of circuit, if the resistance is lower than approx. 70
Ω
,
the buzzer sounds.
10
Transistor hFE Test
1. Set the FUNCTION switch to the hFE range.
2. Determine whether the transistor is NPN or PNP and locate the Emitter,
Base and Collector leads. Insert the leads into the proper holes in the
socket on the front panel.
3. Display will read approx. hFE value at the test condition/Base Current
10µA VCE 3.2V
