Related Manuals for Plusivo DM301B
Summary of Contents for Plusivo DM301B
- Page 1 Mastering The Art of Measurement User Guide for the Plusivo DM301B Multimeter Mastering the Art of Measurement (Digital Multimeter) r.01 www.plusivo.com...
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Page 2: Table Of Contents
7.10 Battery Test 8. Basic Concepts 8.1 Ohm's Law 8.1.1 Example 8.2 Joule's Law for Electrical Power 8.2.1 Example 8.3 Kirchhoff's Law 8.3.1 Kirchhoff's Current Law 8.3.2 Kirchhoff's Voltage Law Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 3: Introduction
In this guide, you are going to learn how to measure DC voltage and AC voltage, DC current, resistance, diodes, capacitance and continuity test using DM301B 4000 Counts T-RMS Digital Multmeter. We are going to study some basic concepts like Ohm's Law and Kirchhoff's Law. Please note that product color may slightly vary due to photographic lighting sources or your monitor settings. -
Page 4: Parts
In general, if something unusual happens or if you suspect that something is wrong or has malfunctioned, do not do anything with the product and immediately contact the seller for assistance (email address: office@plusivo.com) 2. Parts Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 5: Rotary Switch / Function Knob
Instrument turned OFF DC Voltage measurement AC Voltage measurement Resistance/Diode/Continuity measurement Capacitance Measurement Function Battery Test Function AC/DC Current measurement Non Contact Voltage measurement (NCV) / Live Test 2.2 Function keys description Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 6: Lcd
Alternating current measurement Direct current measurement Auto power off indicator Low battery indicator Hold function activated Voltage measurement Current measurement Maximum value Capacitance Continuity measurement Diode measurement Live Test measurement Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 7: Technical Specifications
● Strictly observe the operating instructions in this manual before using it. Otherwise, the protective function of the device may be damaged or weakened. Complete safety instructions can be found in the DM301B manual that is inside the DM301B Multimeter Kit. -
Page 8: Reference Table
Reference condition: the environment temperature is 18°C to 20°C, the relative humidity is no more than 80%. Accuracy: ± (% reading + word) 6.1 DC Voltage Range Resolution Accuracy 400 mV 0.10 mV Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 9: Ac Voltage
400 mA 0.001 A 10 A 0.01 A Overload protection: μA/mA : F400 mA/250 V fuse; A: F10 A/250 V fuse Maximum input current: mA: 400 mA; A: 10 A Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 10: Resistance
The resistance is <30, the buzzer sounds and the indicator light turns green. When the resistance is >30 and <60, the buzz does not ring, the indicator light is red. Overload Protection: 250 V DC or AC peak Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 11: Measurement Operation
" and black probe in "COM" sockets. 3. Connect the probe to the circuit to be measured (connect to the measured power source or circuit in parallel) and measure the voltage. 4. Read the measurement result. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 12: Ac Voltage Measurement
" and black probe"COM" sockets. 3. Connect the probe to the circuit to be measured (connect to the measured power source or circuit in parallel) and measure the voltage. 4. Read the measurement result. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 13: Dc/Ac Current Measurement
4. Read the measurement result. The example below is for measuring DC current. If you want to measure AC current, use the FUNC key to switch to AC current measurement function. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 14 Pay special attention to safety when measuring high voltage to avoid electric shock or personal injury. ● Check the known voltage with a meter before use and make sure that the function of the meter is not damaged. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 15: Resistance Measurement
The resistance measured in this figure is 6.2 Ω When measuring resistance on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged and may be struck by electric shock. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 16: Continuity Test
When measuring continuity on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged and may be struck by electric shock. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 17: Diode Test
The measured forward voltage in this figure is 0.557 V When measuring diode on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged and may be struck by electric shock. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 18: Capacitance Test
4. Read the measurement results. When measuring capacitance on the line, disconnect the power supply and discharge all the high-voltage capacitors. Otherwise, the instrument may be damaged and may be struck by electric shock. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 19: Non Contact Voltage (Ncv) Test
4. When the meter detects strong AC signals, the red indicator lights up and the beeps are sent in fast dips. In order to avoid possible accidents such as electric shock or personal injury, please follow the safety regulations. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 20: Live Test
4. When the meter detects strong AC signals, the red indicator lights up and the beeps are sent in fast dips. In order to avoid possible accidents such as electric shock or personal injury, please follow the safety regulations. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 21: Battery Test
3. Connect the positive to the red test lead and the black test lead to the negative. 4. Read the measurement result. Note: 1.5 V range Load resistance: 30Ω 9 V range Load resistance : 300Ω Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 22: Basic Concepts
8.1.1 Example Calculate the current in this circuit. �� �� = Simply, we can use Ohm’s law: �� 3 �� = 0. 00588 �� = 5. 88 ���� 510 Ω Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 23 The measured resistance in this figure is 556.2 Ω. Note: Disconnect the battery when measuring the resistance, otherwise, the multimeter may be damaged. If we measure the voltage around the resistor: Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 24: Joule's Law For Electrical Power
I is the current through the resistor. V is the voltage around the resistor. R is the resistance. Note: There are many types of emitting power, it may be a rotary power, light, heat, etc. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 25: Example
Let us see what we will get if we built this circuit in reality and calculate the power using the multimeter. The measured resistance in this figure is 508.3 Ω Note: Disconnect the battery when measuring the resistance, otherwise, the multimeter may be damaged. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 26 · 510 Ω = 0. 0196 �� = 19. 6 ���� So all the result of the calculations using the formulas above are near each other’s value: 19.9 mW, 19.7 mW, 19.6 mW Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 27: Kirchhoff's Law
+ �� = �� + �� ����1 ����2 ������1 ������2 8.3.2 Kirchhoff's Voltage Law The sum of all the voltages around the loop is equal to zero. �� �� �� Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 28: Example
+ 2. 2 ��Ω · �� We get this equation from �� Equation 1: 3 �� − (�� · 2. 2 ��Ω) − (�� · 680 Ω) = 0 �� Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 29 · 14. 468) + 0. 0638 �� �� = (− 0. 003957 �� · 14. 468) + 0. 0638 �� �� = − 0. 05725 �� + 0. 0638 �� �� = 0. 00655 �� Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 30 �� = 0. 00655 �� · 47 Ω �� = 0. 3 �� Now, let us make this circuit in reality and measure the voltage around the resistors using the multimeter. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 31 The measured voltage around the 47 Ω resistor is 0.36 V. Please see the set-up below. So we can count on our calculation, we will always find these small differences between the calculations and the real measurements because of the tolerance of the components. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 32: Shunt Resistor
�� = �� · �� through it, so the voltage will be generated around it. And then we will measure this voltage using the multimeter, this way we have converted the current into voltage. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 33: Example
Using Ohm’s law “ “ �� = �� · �� 1. 88 �� = �� · 7. 5 Ω 1.88 �� �� = = 0. 251 �� = 251 ���� 7.5 Ω Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 34 �� = = 0. 229 �� = 229 ���� 8.2 Ω So, we can count on this way to measure the current, 229 mA is near the value 242 mA. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 35: Choosing The Right Resistor For An Led
After knowing the forward voltage for the LED, it is easy to calculate the resistance. To measure the forward voltage we connect a high value resistor, so we ensure that a low current will pass through the LED. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 36: Example
Now, we need to build the circuit with a red LED, and we will use a high resistor, in our case, we will use a 2.2 kΩ resistor and measure the forward voltage using the multimeter. The measured voltage in this figure is 1.894 V DC Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 37 Now, let us build the circuit again using a 330 Ω resistor and measure the forward voltage again and the current. The measured voltage in this figure is 1.994 V DC Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 38: Measuring Internal Resistance Of A Battery
We need to follow these steps to measure the internal resistance of a battery using the multimeter. First, we need to measure the voltage of the battery. Second, we connect a resistor with the battery and measure its voltage. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... -
Page 39: Example
To measure the internal resistance of a 9 V battery, we need to measure the voltage of the battery first. The measured voltage in this figure is 8.94 V DC. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 40 ● Now, we have the current and the voltage on the internal resistance, so we can calculate the �� = �� value of the internal resistor: �� ���� 0.40 �� = 23. 95 Ω 0.0167 �� Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 41: Testing Some Components Using Multimeter
In this section, we are going to test some components using a multimeter. 8.7.1 Potentiometer Test First, we need to measure the resistance between A - C. The measured resistance in this figure is 48.84 kΩ. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 42 The measured resistance in this figure is 12.89 kΩ. The measured resistance in this figure is 36.04 kΩ. , which is almost equal to 48.84 kΩ 12. 89 ��Ω + 36. 04 ��Ω = 48. 93 ��Ω Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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Page 43: Bjt Transistor Test
Now, we can test the NPN transistor as 2 diodes. To test the first diode (B - C), we need to connect the red probe to the anode which is the base of the transistor and connect the black probe to the cathode which is the collector of the transistor. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com... - Page 44 To test the second diode (B - E), we need to connect the red probe to the anode which is the base of the transistor and connect the black probe to the cathode which is the emitter of the transistor. The measured forward voltage in this figure is 0.699 V. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 45 Now, we can test the PNP transistor as 2 diodes. To test the first diode (B - E), we need to connect the black probe to the cathode which is the base of the transistor and connect the red probe to the anode which is the emitter of the transistor. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 46 To test the second diode (B - C), we need to connect the black probe to the cathode which is the base of the transistor and connect the red probe to the anode which is the collector of the transistor. The measured forward voltage in this figure is 0.672 V. Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 47 Digital Clamp Meter 3999 Enhanced Bonus Counts Counts SOLDERING KITS and SOLDERING KITS ACCESSORIES * Soldering Kit Model 0 Soldering Kit Model 1 Soldering Kit Model 2 Soldering Kit Model 3 Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 48 B. 2 colors (Red and Black) 12 Gauge Silicone Wire Kit Length / Number of Strands 3 m each color / 680 strands 8 m each color / 680 strands Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
- Page 49 To know more about us and our products, please visit us in our official pages: www.plusivo.com https://www.facebook.com/plusivo/ For inquiries and assistance about distributorship, please reach us via email address: office@plusivo.com Mastering the Art of Measurement (DM301B Digital Multimeter) r.01 www.plusivo.com...
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