Clamp Meters

A clamp meter is a versatile electrical test tool that integrates a basic digital multimeter with a current sensor. This combination allows you to conveniently and safely measure current flowing through a wire without interrupting the circuit. Additionally, clamp meters are ideal for measuring high currents, making them essential tools for electricians, technicians and DIY enthusiasts working on various electrical projects.

Key Features of Clamp Meters

Clamp meters are designed with a hinged jaw. As a result, the user can clamp the jaws around a wire, cable or other conductors at any point in an electrical system.

The key features of clamp meters include:

• Current Measurement: The function of a clamp meter is to measure current, primarily AC current.
• Voltage Measurement: Many clamp meters also include the capability to measure AC and DC voltage, further expanding their testing capabilities.
• Resistance Measurement: Measuring the resistance of a component or circuit is another common feature of clamp meters, aiding in troubleshooting and diagnostics.
• Continuity Testing: This feature helps identify complete circuits and detect breaks or shorts in electrical connections.
• Additional Features: Advanced clamp meters may offer functionalities like DC current measurement, capacitance measurement, temperature sensing, frequency measurement and more.

Different Types of Clamp Meters

Clamp meters are available in various types, each tailored to specific measurement needs. Here are the most common ones you’ll find in the market:

• AC Current Clamp Meter: This is the most common type of clamp meter, and it measures alternating current (AC) flow in electrical circuits.
• DC Current Clamp Meter: This clamp meter uses Hall Effect technology to measure direct current (DC).
• AC/DC Clamp Meter: A versatile tool, this clamp meter is capable of measuring both AC and DC current.
• Leakage Clamp Meter: Specifically designed to detect and measure small current leakages, a leakage clamp meter is crucial for identifying potential electrical faults and safety hazards.
• HVAC Clamp Meter: Tailored for HVAC professionals, this clamp meter features specialised functions for measuring temperature, capacitance and other parameters relevant to heating, ventilation and air conditioning systems.
• Power Clamp Meter: Equipped to measure various electrical parameters like voltage, current, resistance, and power, a power clamp meter offers a comprehensive solution for power analysis and troubleshooting.

Why Are Clamp Meters so Popular?

Here are some of the reasons why many prefer using clamp meters:

• Safety: Digital clamp meters allow electricians to bypass the old-school method of cutting into a wire and inserting a meter's test leads into the circuit to take an inline current measurement. Additionally, the jaws of a clamp meter do not need to touch a conductor when using the tester.
• Convenience: During measurement, it is not necessary to shut off the circuit carrying current—a large boost in efficiency.
• Service: Repair existing systems on an as-needed basis.
• Installation: Troubleshoot installation problems, perform final circuit tests and supervise apprentice electricians while installing electrical equipment.
• Maintenance: Perform scheduled and preventative maintenance and system troubleshooting.

Who Uses Clamp Meters?

Because of their versatility, clamp meters are utilised by various professionals. Some of the common users of clamp meters include:

• Industrial maintenance technicians
• Control technicians
• Electricians – in-house and contractors
• Facilities, building maintenance, and HVAC technicians
• Service organisations

Clamp Meter Applications

Clamp meters find applications across numerous industries where accurate and safe electrical measurements are crucial. Some common areas where clamp meters are employed include:

• Industrial equipment
• Industrial controls
• Electrical systems
• Commercial/industrial HVAC

How to Choose the Right Clamp Meter

Selecting the right clamp meter depends on your specific needs and applications. For example, you need to consider your measurement requirements (AC/DC current, voltage, resistance, etc.). At the same time, you must check the product for accuracy, safety features and specialised functions.

At RS HK, you’ll find a wide selection of high-quality clamp meters. So, you can easily buy the perfect tool for your electrical testing tasks. What’s more, our team of experts can guide you in choosing the ideal clamp meter that meets your requirements and budget.

How to Order Insulation Testers from RS

RS HK is your trusted supplier of a comprehensive range of electrical testing and measurement equipment, including clamp meters, liquid level sensors, flow meters, pressure transducers and more. Plus, we offer high-quality products from top brands like Extech, Chauvin Arnoux, Fluke, Beha-Amprobe, FLIR, Keysight Technologies, Megger and many more, ensuring you find the perfect solution for your specific needs.

Ordering your clamp meter is easy through the following channels:

• Online: Explore our extensive online catalogue, select your desired clamp meter and add it to your cart. Then, proceed to checkout for secure online payment and swift order processing.
• Phone: For personalised assistance or to set up blanket orders, call us at 852 2421 9898.

How Delivery Works at RS HK

RS HK offers fast and efficient delivery options for your clamp meter purchases, ensuring your items arrive promptly.

Please note that we are unable to deliver to GPO Boxes, Restricted Areas, or Outlying Islands. For more information about delivery services and fees, please visit our Delivery page.