KYORITSU manufactures high-quality electrical test and measuring instruments, including clamp meters, insulation testers, and multimeters, ensuring safety and precision for professionals.
Kyoritsu Electrical Instruments Works, Ltd., widely known as KEW or KYORITSU, is a prominent Japanese manufacturer of electrical testing and measuring equipment. Founded in 1940, the company has established a global reputation for producing reliable, safe, and precise instruments used by electricians, engineers, and maintenance professionals. Their extensive product lineup includes digital clamp meters, insulation resistance testers, earth resistance testers, loop impedance testers, and power quality analyzers.
Committed to international safety standards (IEC), Kyoritsu designs its products to withstand harsh electrical environments up to CAT IV ratings. The brand focuses on user-oriented features such as True RMS measurement, ergonomic designs, and robust safety protection. From industrial plants to residential wiring, KYORITSU instruments are essential tools for ensuring electrical safety and troubleshooting complex systems.
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'OL' stands for Over Limit or Over Range. It indicates that the measured value exceeds the maximum limit of the currently selected range. If possible, switch to a higher range or check if the input is within the instrument's specifications.
Ensure the instrument is turned off and test leads are disconnected. Remove the battery cover screw on the back of the unit, replace the batteries with the specified type (often AA or R03/AAA depending on the model), and securely close the cover before use.
Most Kyoritsu industrial instruments are designed to meet IEC 61010 safety standards, often rated for CAT III or CAT IV environments. Check the specific category rating printed on your device (e.g., CAT IV 600V) to ensure it matches the electrical environment you are testing.
The 'BATT' symbol indicates low battery voltage. When this symbol appears, the accuracy of measurements cannot be guaranteed. Replace the batteries immediately to ensure reliable results.