Kyoritsu Digital Multimeter

A. Product Overview

Kyoritsu digital multimeters are portable electrical measuring instruments designed for electricians, service engineers, maintenance professionals and industrial technicians.

The range includes different models for general electrical work as well as more demanding industrial applications.

Kyoritsu KEW 1009

The Kyoritsu MODEL 1009 is a versatile digital multimeter with a 3999 count display. It supports both auto ranging and manual ranging and can measure:

• AC voltage
• DC voltage
• AC current
• DC current
• Resistance
• Capacitance
• Frequency
• Duty cycle
• Continuity
• Diode condition

It is suitable for general electrical maintenance, electronics testing and troubleshooting.

Kyoritsu KEW 1019R

The Kyoritsu KEW 1019R is a compact True RMS digital multimeter designed for portable electrical testing.

It can measure:

• AC voltage up to 600 V
• DC voltage up to 600 V
• Resistance up to 40 MΩ
• Capacitance
• Continuity

Its compact construction makes it useful for electricians and technicians who need a lightweight meter for routine service work.

Kyoritsu KEW 1021R

The Kyoritsu KEW 1021R is a True RMS digital multimeter with a 6000 count display.

It supports measurements including:

• AC voltage
• DC voltage
• AC current
• DC current
• Resistance
• Capacitance
• Frequency
• Duty cycle
• Continuity
• Diode testing

It can also work with compatible external clamp sensors, increasing its usefulness for electrical maintenance applications.

Kyoritsu KEW 1051

The Kyoritsu KEW 1051 is a professional True RMS digital multimeter intended for industrial electrical testing.

Key capabilities include:

• AC and DC voltage measurement up to 1000 V
• Current measurement up to 10 A
• Resistance measurement
• Capacitance measurement
• Frequency measurement
• Temperature measurement
• Continuity testing
• Diode testing
• Low pass filter function
• 6000 count display
• High accuracy measurement

The KEW 1051 is particularly suitable for industrial maintenance, motor drive testing and electrical troubleshooting.

B. Working Principle

A digital multimeter works by receiving an electrical signal through its test leads and converting that signal into a numerical value shown on the display.

The operating principle depends on the selected measurement function.

For voltage measurement, the multimeter measures the electrical potential difference between two points.

For current measurement, current passes through an internal measuring circuit that calculates the amount of electrical current flowing through the circuit.

For resistance measurement, the multimeter applies a small internal test signal and calculates resistance based on the resulting current flow.

For continuity testing, the meter checks whether a low resistance electrical path exists between two points.

For capacitance measurement, the meter measures the charging and discharging characteristics of a capacitor.

True RMS models such as the KEW 1019R, KEW 1021R and KEW 1051 calculate the effective value of AC signals. This provides more accurate measurements when testing distorted or non sinusoidal electrical waveforms.

C. Why It Is Used

Kyoritsu digital multimeters are used because a single instrument can perform several essential electrical measurements.

They help technicians identify problems such as:

• Incorrect supply voltage
• Voltage drop
• Open electrical circuits
• Short circuits
• Damaged wiring
• Abnormal resistance
• Faulty electrical components
• Blown fuses
• Poor continuity
• Electrical equipment malfunction
• Incorrect current consumption
• Capacitor problems
• Frequency irregularities

Digital multimeters are widely used during installation, commissioning, preventive maintenance and troubleshooting.

True RMS multimeters are particularly useful when testing circuits containing variable frequency drives, switching power supplies, electronic controls and other equipment that may produce distorted AC waveforms.

D. Suitable Buyers

The Kyoritsu KEW 1009, KEW 1019R, KEW 1021R and KEW 1051 are suitable for:

• Electricians
• Electrical maintenance engineers
• Industrial maintenance teams
• Service technicians
• Electronics technicians
• Electrical contractors
• Panel builders
• HVAC technicians
• Facility maintenance companies
• Machine manufacturers
• Automation engineers
• Motor service workshops
• Electrical testing companies
• Manufacturing plants
• Power distribution maintenance teams
• Engineering colleges and technical institutes

The appropriate model can be selected based on required measurement functions, voltage range, current range, accuracy and safety category.

Frequently Asked Questions

1. What is a Kyoritsu digital multimeter?

A Kyoritsu digital multimeter is an electrical measuring instrument used to measure parameters such as voltage, current, resistance, capacitance, frequency and continuity.

2. Which Kyoritsu multimeter models are included in this range?

This range includes KEW 1009, KEW 1019R, KEW 1021R and KEW 1051.

3. Which Kyoritsu multimeters support True RMS measurement?

The KEW 1019R, KEW 1021R and KEW 1051 support True RMS measurement.

4. Why is True RMS important?

True RMS allows a multimeter to accurately measure AC signals even when the waveform is distorted. This is particularly useful with electronic loads, variable frequency drives and switching power supplies.

5. What is the maximum voltage range of the KEW 1051?

The Kyoritsu KEW 1051 can measure AC and DC voltage up to 1000 V.

6. Can these multimeters measure current?

Yes. Models such as the KEW 1009, KEW 1021R and KEW 1051 support current measurement. The exact current range depends on the model.

7. Can Kyoritsu multimeters measure resistance?

Yes. These digital multimeters support resistance measurement and can be used to check components, wiring and electrical circuits.

8. Can they check continuity?

Yes. Continuity testing is available for checking whether an electrical connection or conductor has a complete electrical path.

9. Can Kyoritsu digital multimeters measure capacitance?

Yes. Depending on the model, capacitance measurement is available for checking capacitors and electronic components.

10. Which model is suitable for industrial applications?

The Kyoritsu KEW 1051 is particularly suitable for demanding industrial electrical applications because it offers True RMS measurement, up to 1000 V measurement, high accuracy and a low pass filter.

11. Which model is best for compact portable use?

The Kyoritsu KEW 1019R is designed as a compact True RMS multimeter and is suitable for portable service and maintenance work.

12. What is the difference between KEW 1009 and KEW 1021R?

The KEW 1009 is a general purpose digital multimeter with auto and manual ranging, while the KEW 1021R provides True RMS measurement, a 6000 count display and support for compatible external clamp sensors.

13. Can KEW 1051 measure temperature?

Yes. The KEW 1051 supports temperature measurement in addition to its electrical measurement functions.

14. Are Kyoritsu multimeters suitable for electricians?

Yes. Kyoritsu digital multimeters are designed for professional electrical testing, installation, troubleshooting and maintenance.

15. Where are Kyoritsu digital multimeters commonly used?

They are commonly used in factories, electrical panels, commercial buildings, workshops, HVAC systems, automation panels, electrical installations and industrial maintenance departments.