Metrix+ 451LCR True RMS Digital Multimeter with LCR Measurement
The Metrix Plus 451 LCR Digital Multimeter is a professional panel calibrate multimeter designed for electrical and electronic testing. It measures AC and DC voltage, AC and DC current, resistance, capacitance, inductance, frequency, diode, continuity and transistor hFE. It features True RMS AC measurement, a large backlit display, flashlight, data hold, low battery indication and automatic power off, making it suitable for electronics servicing, electrical maintenance, laboratories, component testing and troubleshooting.
Customize
Share :
A. Product Overview
The Metrix Plus 451 Digital Panel Calibrate LCR Multimeter combines the functions of a digital multimeter and an LCR measuring instrument in one portable device.
Unlike basic multimeters that primarily measure voltage, current and resistance, the Metrix Plus 451 also measures capacitance and inductance, making it particularly useful for electronic component testing.
Main Measurement Functions
• DC voltage up to 1000V
• AC voltage True RMS up to 700V
• DC current up to 10A
• AC current True RMS up to 20A
• Resistance up to 20 MΩ
• Capacitance up to 200 µF
• Inductance up to 2 H
• Frequency up to 200 kHz
• Transistor hFE measurement
• Diode testing
• Continuity testing
Key Features
• LCR multimeter functionality
• True RMS AC voltage and current measurement
• Large backlit display
• Built in flashlight
• Data hold
• Low battery indication
• Automatic power off
• Portable handheld construction
• 9V battery operation
The combination of inductance, capacitance, resistance and standard multimeter measurements makes the Metrix Plus 451 especially useful for electronics engineers and service technicians.
B. Working Principle
The Metrix Plus 451 works by converting the electrical quantity being tested into a measurable electrical signal, which is processed electronically and shown as a numerical value on the display.
Different measuring circuits are used depending on the selected function.
Voltage Measurement
For voltage measurement, the meter is connected across the circuit or component. Internal voltage divider circuitry allows the instrument to measure different voltage levels.
Current Measurement
For current testing, the meter measures electrical current flowing through its internal measurement circuit and displays the corresponding current value.
Resistance Measurement
When measuring resistance, the meter applies a small internal test signal to the component and calculates its resistance from the resulting electrical response.
Capacitance Measurement
For capacitor testing, the meter evaluates the electrical charging characteristics of the capacitor and determines its capacitance value.
The Metrix Plus 451 supports capacitance measurement from 20 nF ranges through 200 µF.
Inductance Measurement
Inductance measurement evaluates the electrical characteristics of an inductor or coil and displays the inductance value.
The available inductance ranges are:
Frequency Measurement
The multimeter counts repetitive electrical signal cycles to determine frequency.
Its frequency ranges extend up to 200 kHz.
True RMS Measurement
The AC voltage and AC current specifications of the Metrix Plus 451 use True RMS measurement, which provides effective AC values and is useful when testing AC signals that may not be perfectly sinusoidal.
C. Why Is the Metrix Plus 451 Used?
1. Inductor and Coil Testing
The inductance function makes the meter useful for checking coils, inductors and other inductive components.
2. Capacitor Testing
Capacitance measurement helps electronics technicians verify capacitor values during servicing, troubleshooting and component inspection.
3. Electrical Voltage Testing
The meter can measure both AC and DC voltage, making it suitable for electrical and electronic circuits.
4. Current Measurement
AC and DC current measurement helps technicians check circuit operation, loads and electrical equipment.
5. Resistance Measurement
Resistance testing can be used for resistors, wiring, connections and electronic components.
6. Frequency Measurement
The frequency function is useful for checking repetitive electrical and electronic signals.
7. Transistor hFE Testing
The Metrix Plus 451 provides an approximate transistor hFE reading from 0 to 1000, useful for basic transistor evaluation.
8. Diode Testing
The dedicated diode function helps technicians check semiconductor diodes during electronics troubleshooting.
9. Continuity Testing
Continuity testing can quickly identify open circuits, broken wiring and electrical connection problems.
10. Electronics Repair
Because it combines conventional multimeter functions with capacitance, inductance and transistor testing, the 451 is particularly useful for electronics servicing and PCB troubleshooting.
11. Laboratory Testing
Its broad measurement capability makes it suitable for educational, electronics and engineering laboratories.
D. Suitable Buyers
The Metrix Plus 451 LCR Digital Multimeter is suitable for:
• Electronics engineers
• Electrical engineers
• Electronics technicians
• Electricians
• PCB repair technicians
• Electronics repair shops
• Industrial maintenance teams
• Control panel technicians
• Automation engineers
• Research laboratories
• Electronics laboratories
• Quality control departments
• Research and development teams
• Electronic equipment manufacturers
• Service centers
• Engineering colleges
• Technical institutes
• Component testing laboratories
• Electrical service companies
• Electronics hobbyists
It is especially suitable for users who require a digital multimeter with inductance and capacitance measurement rather than a basic electrical multimeter.
Frequently Asked Questions
1. What is the Metrix Plus 451?
The Metrix Plus 451 is a digital panel calibrate LCR multimeter designed for measuring voltage, current, resistance, capacitance, inductance, frequency, transistor hFE, diode and continuity.
2. What does LCR mean?
LCR refers to:
L: Inductance
C: Capacitance
R: Resistance
An LCR multimeter can measure these three important electronic component parameters.
3. Does the Metrix Plus 451 measure inductance?
Yes. It provides inductance measurement ranges of:
4. What is the maximum inductance measurement?
The maximum specified inductance range is 2 H.
5. Does the Metrix Plus 451 measure capacitance?
Yes. Capacitance measurement is one of its main LCR functions.
6. What is the maximum capacitance range?
The maximum specified capacitance range is 200 µF.
7. What resistance can the Metrix Plus 451 measure?
The instrument provides resistance ranges from 200 Ω up to 20 MΩ.
8. What is the maximum DC voltage range?
The maximum DC voltage range is 1000V.
9. What is the maximum AC voltage range?
The maximum specified AC voltage range is 700V True RMS.
10. What is the maximum DC current range?
The highest specified DC current range is 10A.
11. What is the maximum AC current range?
The highest specified AC current range is 20A True RMS.
12. Is the Metrix Plus 451 a True RMS multimeter?
Its AC voltage and AC current specifications are listed as True RMS, making it suitable for effective AC measurement.
13. Can it measure frequency?
Yes. Frequency measurement ranges are:
14. Does the Metrix Plus 451 test transistors?
Yes. It provides approximate hFE measurement from 0 to 1000.
15. Does it have diode testing?
Yes. A diode test function is included.