About Clamp meters

The Pro's Choice For Laboratory, Research, or Industry HVAC Quality Control.

The image depicts an electrician using a clamp meter to measure current on an HVAC system. He is wearing safety gear, including gloves and safety glasses, and is focused on the task. The background features various HVAC components such as air ducts, a furnace, and control panels, creating a realistic and professional setting.

What's clamp meters and applications

The operational principle of the current clamp meter involves utilizing a silicon steel hook with at least 100 turns, enabling precise current measurement through its clamping mechanism without the need for direct contact or circuit interruption. When clamped onto a wire (e.g., AC power line), it serves as a current transformer with a conversion ratio of 1:100. Through electronic rectification, the meter displays results by converting the magnetic field induced by the current into measurable electric current. This portable device, now referred to as a current clamp meter, integrates a current transformer and a current meter, allowing direct measurement of AC current without circuit disconnection. The current clamp meter is a handheld device with multimeter functionality, capable of directly measuring AC/DC current without the need to disconnect the electrical conductor. Today's current clamp meters feature versatile designs and find widespread application in areas such as HVAC/R, electric vehicles, electrical installations, motor inspections, engineering, and more. Primarily used for electrical maintenance, it not only provides current readings but can also measure voltage, resistance, and sometimes even frequency and capacitance, offering comprehensive functionality for troubleshooting and maintenance tasks. The current clamp meter, renowned for its outstanding performance, practicality, and reliability, is highly favored by electrical engineers.

Correct Usage of Current Clamp Meter:

Essential Steps: Begin by connecting the AC/DC power cable. Hook onto one of the two lines. Adjust the ammeter to the appropriate gear position, such as DCM-033B 02/20A; 0200A/400A. Meaningful numbers will be generated for normal lines; if there is no display, it indicates an open circuit.

ac, dc current clamp meter key words

Keywords: Current clamp meter, HVAC/refrigeration, electric vehicle, electrical installation, motor testing, ground impedance hook meter, multimeter, AC, DC

The digital Clamp Meter is an electrical meter with integral AC current clamp. In order to use it properly, the normal usage is only one conductor passed through the probe

How to use curent clamp meter correctly?

Little knowledge:

1. Connect the AC/DC power cable first.
2. Hook one of the two lines.
3. Set the ammeter in the appropriate gear position such as DCM-033A 0~2/20A; 0~200A/ 400A
4. Normal lines will generate meaningful numbers; if no normal display indicates that the line is open.