TECPEL DCM-043 User manual

CONTENTS
TITLE PAGE
I. Safety Information …………………………………....1
Environmental Conditions…………………………….…..1
Explanation of Symbols……………….…………………. 1
II. Specification……………………………………….……2
General Specification……………………………………. 2
Electrical Specification………………………………….... 3
III. Instrument Familiarization…………………………4
Symbol Definition…………………………………………..4
Instrument Familiarization………………………………...4
Button Instruction…………………………………………..5
IV. Measuring Instruction…………………...…………..6
4.1 ACA measurement…………………………………. 6
4.2 DCA measurement……...…………………………. 7
4.3 ACV measurement……….………………………… 8
4.4 DCV measurement…………...……………….…… 9
4.5 Resistance measurement……………...………… 10
4.6 Continuity Test……………………………………... 11
4.7 Analog Signal Output………………………………12
V. Battery Changing……………………………………. 13
VI. Maintenance………………………………………….. 13

Instruction Manual
1
I. Safety Information
Do not operate the unit if the casing or the test Leads are or
look damaged.
Check the main function dial to ensure it is set at the
correct position before each measurement.
Do not perform resistance and continuity test on a live
“powered “system.
Do not apply voltage between the test terminals and test
terminal to ground that exceed the maximum limit referred
to in this manual.
Exercise extreme caution when measuring live systems
with voltage greater than 60V DC or 30V AC.
Keep fingers behind the protection ring when measuring
with test leads.
Replace batteries when the symbol appears to avoid
incorrect data.
Environmental Conditions:
Altitude up to 2000 meters.
Operating temperature:
0°C ~ 40°C, <80% RH, non-condensing
Storage temperature: -
10°C ~ 60°C, <70% RH, battery removed
Pollution Degree: 2
Explanation of Symbols:
Attention refer to operation Instructions.
Dangerous voltage may be present at terminals.
This instrument has double insulation.
Approvals:EN61010 600V CAT II 300V CAT III

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II. Specification
General Specification:
Digital Display:
4 digits LCD display with maximum reading 9999
Over Load:
When the signal input exceeds the maximum limit “OL” will
be display.
Sample Rate:
2 times/sec
Peak Hold Sample Rate:
10ms at DCV, DCA
Low Power Indication:
When the battery is below the proper operation range,
symbol will appear on the LCD display.
Auto Power Off:
The meter will power it self OFF after 30 minutes of
inactivity.
Electromagnetic Compatibility:
Vac and Aac only: RF field = 3V/m
Total accuracy = specified accuracy + 5.0% of range
Power Source: UM-4 or AAA 1.5V battery x 2.
Battery Life: 45 hr approx. (alkaline battery)
Clamp opening size: 12.5mm(1/2 inch)
Dimension (L x W x H) :
202x70x34mm, 7.95x2.76x1.33 inch
Weight: 180g( include battery)
Accessory:
Instruction Manual, Carrying Case, Test lead, Battery
1.5Vx2

Instruction Manual
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Electrical Specification:
(Ⅰ) The accuracy specification is defined as ±( …%reading
＋…count ) At 23 ±5℃, ≦80 %RH
ACA (Autorange)
Range Resolution Accuracy ( 50Hz~500Hz) Overload Protection
10A 1mA
80A 10mA 2%+10
80~100A 10mA 3.5%+10 150Arms
Accuracies are specified from 5%to 100% of range
DCA (Autorange)
Range Resolution Accuracy Overload Protection
10A 1mA
80A 10mA 2.5%+10
80~100A 10mA 4.5%+10 150Arms
Accuracies are specified from 5%to 100% of range
ACV
Range Resolution Accuracy (50Hz~500Hz) Overload Protection
600V 0.1V 1.5%+5 660Vrms
DCV
Range Resolution Accuracy Overload Protection
600V 0.1V 1%+2 660Vrms
Ohm ( Ω)
Range Resolution Accuracy MAX Test Voltage Overload Protection
10K
Ω
1
Ω
1%+3 3V
DC
600Vrms
Continuity (
)
Range Active Region MAX Test Voltage Overload Protection
<100 Ohm
3V
DC
600Vrms
(Ⅱ) Analog output: ( for ACA & DCA range)
10 mV/Amp (20KHz at ±3dB)
Accuracy: ±(4.5% reading + 0.5mV)
Output impedance: approx 3KΩ
Overload protection: 600 Vrms

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III. Instrument Familiarization:
Symbol Definition:
Instrument Familiarization:
Voltage Indicator
Ampere Indicator
Continuity
Peak Hold
Low Battery
Alternate/Direct Signal
Digital Reading
Auto Power Off
Indicator
Data Hold
Relative Indicator
5
4
6
3
2
8
1
7
9
HOLD
600V CAT II
ZERO
V
V
A
AOFF
100A
300V CAT III
600V CAT II
COM
600V

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○
1Current Sensing Clamp ○ 6Positive input terminal
○
2Safety protection ring ○ 7Function select dial
○
3Clamp opening handle ○ 8Peak / Data hold button
○
4LCDdisplay ○ 9Zero button
○
5COM input terminal
Button Instruction:
 Zero Button
Press Zero button to enter the Zero mode, “△” Annunciate
will appear and Zero the display. The reading is stored as
reference value for subsequent measurement.
Press the Zero button again, to exit the zero mode.
 Data Hold & Peak Hold Button
To activate the Data Hold feature, press and hold the
“ Hold ” button.
To de-activate the Data Hold feature, press and hold the
“ Hold ” button again.
To activate the Peak Hold feature, press and hold the
“ Peak ” button until the symbol displays.
To deactivate the Peak feature, press and hold the “ Peak ”
button for 2 seconds.
The meter will return to normal mode operation.
Note: This meter is built with peak hold function at ACA,
DCA, ACV, DCV ranges.
 Disable Auto power off
Press and hold “ ZERO ” button and then the power on the
meter, the symbol will disappear.

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HOLD
600V CAT II
ZERO
A
V
V
A
OFF
100A
COM
300V CAT I II
600V CAT I I
600V
ZERO
600V CATII
HOLD
A
V
V
A
OFF
100A
COM
300V CAT III
600V CAT II
600V
IV. Measuring Instruction:
4.1 ACA measurement:
Switch the function selector to A~ range.
Open the clamp by pressing the jaw-opening handle and
insert the cable to be measured into the jaw.
Close the clamp and get the reading from the LCD panel.
Note:
Before this measurement, disconnect any test lead with
the meter for safety.
In some cases where reading is difficult, press the HOLD
button and read the result later.
4CORRECT
7
INCORRECT

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4.2 DCA measurement:
Switch the function selector to A range.
Press ZERO button to enter the zero reading.
Open the clamp by pressing the jaw-opening handle and
insert the cable to be measured into the jaw.
Close the clamp and get the reading from the LCD panel.
Note:
Before this measurement, disconnect any test lead from
the meter for safety.
In some cases where reading is difficult, press the HOLD
button and read the result later.
ZERO
V
HOLD
A
V
AOFF
600V CAT II 100A
COM
300V CAT II I
600V CAT II
600V

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V
ZERO
A
V
OFF
HOLD
A
600V CAT II 100A
600V CAT II
300V CAT III
COM
600V
4.3 ACV Measurement:
WARNING!
Maximum Input Voltage is 600V AC/DC. Do not attempt to
Take any voltage measurement that may exceed this
maximum to avoid Electrical shock hazard and/or damage
to this instrument.
Switch the function selector to V ~range.
Connect red test lead to “+” terminal and black one to the
“COM“ terminal.
Measure the voltage by touching the test lead tips to the
test circuit where the value of voltage is needed.
Read the result from the LCD panel.

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4.4 DCV measurement:
Switch the function selector to Vrange.
Connect red test lead to “+” terminal and black one to the
“ COM “ terminal.
Measure the voltage by touching the test lead tips to the
test circuit where the value of voltage is needed.
Read the result from the LCD panel.
HOLD
600V CAT II
ZERO
A
V
V
A
OFF
100A
COM
300V CAT III
600V CAT II
600V

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A
V
ZERO
V
HOLD
OFF
A
100A600V CAT II
300V CAT II I
600V CAT II
600V
COM
4.5 Resistance measurement:
Switch the function selector to range.
Connect red test lead to “+” terminal and black one to the
“ COM ” terminal.
Connect tip of the test leads to the points where the value
of the resistance is needed.
Read the Ohm value from the LCD panel.
Note:
When measuring resistance value from a circuit, make
sure the power is cut off and all capacitors are
discharged.

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A
V
ZERO
V
HOLD
OFF
A
100A600V CAT II
300V CAT III
600V CAT II
600V
COM
4.6 Continuity Test:
Switch the function selector to range.
Connect red test lead to “+” terminal and black one to the
“ COM ” terminal.
Connect tip of the test leads to the points where
continuity is to be tested.
If the resistance is under 100Ω, the beeper will sound
continuously.
Beeper
A
V
ZERO
V
HOLD
OFF
A
100A600V CAT II
300V CAT III
600V CAT II
600V
COM

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4.7 Analog Signal Output:
Switch the function selector to A or A~ range.
Connect red test lead to “+” terminal and black one to the
“ COM ” terminal.
Connect tip of the test leads to the meter or oscilloscope
input terminal.
Open the clamp by pressing the jaw-opening handle and
insert the cable to be measured into the jaw.
Close the clamp and get the analog voltage signal from
the meter.
Note:
If measuring DC via clamp, signal output will be DC
voltage. If measuring AC via clamp, signal output will be
AC voltage.
ZERO
V
HOLD
A
V
AOFF
600V CAT II 100 A
V
100
600V C AT II
300V C AT III
COM
600V

Instruction Manual
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V. Battery Changing:
1.When the battery voltage drops below proper operation
range the symbol will appear on the LCD display
and the battery will need to be changed.
2.Before changing the battery, switch the function selector
to “OFF ” and disconnect test leads.
Open the back cover using a screw driver. Replace the
old batteries with two UM-4 or AAA size batteries.
3.Close the back cover and fasten the screw.
VI. Maintenance:
CAUTION
To avoid contamination or static damage, do not touch
the circuit board without proper static protection.
REMARK
* Remove the batteries, if the meter is not used for
extended periods of time. Do not store the meter in a
high temperature/humidity environment.
* When measuring current, keep the cable at the center
of the clamp to get more accurate readings.
CLEANING
Periodically wipe the case with a dry cloth and without
detergent. Do not use abrasives or solvents on this
instrument.