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How to Use a Coolant Leak Detector to Detect Leaks

Coolant leaks can cause significant problems for both industrial and automotive systems. They can lead to overheating, damage to components, and even complete system failure if left unchecked. Detecting these leaks early is crucial to preventing costly repairs and downtime. This article will discuss using a coolant leak detector effectively to identify and address leaks in your system.

Understanding Coolant Leaks

Before diving into the details of using a coolant leak detector, it's essential to understand what coolant leaks are and why they are a concern. Coolant, typically a combination of water and antifreeze, ventilates through machines and industrial systems to regulate temperature. A leak in the coolant system can result in a loss of this crucial fluid, leading to overheating and potential damage to vital components.Proteus Industries manufactures and develops flow devices with decades of experience.

Using a Coolant Leak Detector

Safety First

Before using any equipment, Wear appropriate personal protective equipment (PPE) like gloves and safety goggles, and work in a well-ventilated area.

Inspect the System

Begin by inspecting the coolant system visually. Look for any signs of coolant leakage, such as puddles or stains under the vehicle or around industrial equipment. While this step may seem basic, it can reveal obvious leaks that can be quickly addressed.

Pressure Test

If no visible leaks are found, you can perform a pressure test. A pressure tester is a crucial method for this purpose. It works by pressurizing the cooling system with air and allowing you to identify leaks as the pressure drops.

Coolant Leak Detector

Use a specialized coolant leak detector to pinpoint more minor or less visible leaks. This device is designed to detect even the tiniest coolant leaks by sensing the presence of coolant vapours in the air. Here's how to use it:

Prepare the Detector: Ensure the detector is clean and in good working condition. Follow the manufacturer's instructions for any specific setup steps.

Turn on the Detector: Power up the coolant leak detector and allow it to warm up as per the manufacturer's instructions.

Scan the Area: Move the detector's sensor probe around the coolant system, paying close attention to areas where leaks are more likely to occur, such as hose connections, radiator seams, and gaskets.

Watch for Readings: The detector will provide readings that indicate the presence of coolant vapours. If the sensor registers a positive reading, you've found a leak.

Note the Location: Mark the leak's location for later repair. It's essential to fix the leak promptly to prevent further damage.

Repair the Leak: Once you've identified the leak's location, you can proceed with the necessary repairs. This may involve replacing a damaged hose, tightening a loose connection, or sealing a crack with epoxy or a suitable sealant.

Re-test: After making the necessary repairs, perform another pressure test or use the coolant leak detector to ensure the issue is resolved.



Coolant leaks are a common problem in automotive and industrial systems, but they can be effectively addressed using suitable methods and techniques. Utilizing a coolant leak detector is a valuable step in the diagnostic process, allowing you to recognize and fix leaks before they cause extensive damage. Regular maintenance and prompt leak detection are essential for running your systems smoothly and preventing costly repairs. Remember to follow safety precautions and manufacturer guidelines when using equipment to ensure a safe and efficient process.

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