DMM-136A DIGTAL MULTIMETER
Opera5on Manual
CONTENTS
GENERAL DESCRIPTION ……………………………
SAFETY PRECAUTIONS………………………………
FEATURES …………………………………………
OPERATION INSTRUCTION…………………………
MAINTENANCE …………………………
TROUBLE SHOOTING …………………………
1.
General Descrip5on
This is a 3 5/6 digital mulDmeter with high stability and performance. It uses a LCD with
20mm high figure, which makes the reading clearer and the operaDon more convenient.
It can test DCV, ACV, DCA, ACA, resistance, capacitance, frequency, NCV, duty cycle,
temperature, diode, and conDnuity. This meter also designed with funcDons including
unit symbol display, data hold, lighDng, auto range, auto power off and warning
funcDons. To assure high accuracy and resoluDon, it adopts integrated circuit 8-bit
microprocessor and a dual integral A/D conversion as LCD driver, giving high resoluDon
and high accuracy. It is an ideal tool for labs, factories and radio-technology.
2. Safety Instruc5ons
The instrument is designed in compliance with IEC1010 standard (safety standard issued
by InternaDonal Electro technical Commi]ee). Please read the following safety
instrucDons before operaDon.
2.1 Check the connecDon and insulaDon of test leads to avoid electric shock.
2.2 To avoid electric shock and damage to the meter, do not input voltage exceeding
rated value.
2.3 When measuring voltage higher than DC 60V or AC 40V, please be careful and avoid
electric shock.
2.4 Select correct funcDon and range to avoid wrong operaDon.
2.5 Move the test leads away from test points when switching to other funcDon.
2.6 Don’t input voltage in current terminal.
2.7 Don’t make any modificaDon to the circuit. It may damage the meter or jeopardize
safety.
2.8 Safety symbols:
“
” High voltage, “ ” GND, “ ” Dual insulaDon, “
” Refer to manual, “ ” Low
ba]ery indicaDon.
3. Features
3.1 General CharacterisDcs
3.1.1 Display: LCD;
3.1.2 Max display: 6000 (3 5/6 digits, automaDc polarity, and unit symbol display);
3.1.3 Measurement method: Analog to digital converter (in micro processor ADC+MCU);
3.1.4 Sampling rate: approx.3 Dmes/sec.
3.1.5 Over-range display: “OL” displayed.
3.1.6 Low ba]ery indicator: “ ”
3.1.7 Working environment: (0
～
40)
℃
, relaDve humidity: <80%;
3.1.8 Store condiDon: (-10
～
50)
℃
, relaDve humidity: <80%
3.1.9 Ba]ery: 2 pieces 1.5V ba]ery (“AAA” 7# ba]ery);
3.1.10 Dimension: 140×72×37mm (length x width x height);
3.1.11 Weight: approx. 195g (including ba]ery);
3.1.12 Accessories: test leads, TP01 thermocouple, user manual, holster, gip box, and
2*1.5V ba]eries.
3.2 Technical Features
3.2.1 Accuracy: ± (a% × reading + digits). To assure accuracy, the ambient temperature
should be (23±5)
℃
, relaDve humidity <75%. One year accuracy is guaranteed since
producDon date.
3.2.2 DC Voltage
（
DCV
）
Input impedance: at 200mv range >40MΩ, at other ranges is 10MΩ.
Overload protecDon: 600V DC/AC rms.
3.2.3. AC Voltage
（
ACV
）
Range
Accuracy
Resolution
600mV
±(0.5%+4)
0.1mV
6V
1mV
60V
10mV
600V
±(1.0%+4)
100mV
Range
Accuracy
Resolution
6V
±(0.8%+6)
1mV
60V
10mV
600V
±(1.0%+6)
100mV
