Flir Extech CT20 User's Guide

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Year 2013

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Flir Extech CT20 Tester Specification

The Flir Extech CT20 Tester is a compact, multifunctional testing device designed for both professional electricians and DIY enthusiasts. It offers reliable performance for basic electrical diagnostics and measurements. The CT20 features the capability to measure AC/DC voltage up to 600V, making it suitable for various residential and commercial applications. It also includes resistance measurement up to 20 MΩ, allowing for accurate testing of circuit integrity and component functionality.

The device is equipped with a continuity test function that emits audible alerts for open or closed circuits, facilitating quick troubleshooting. Its compact design includes a large, easy-to-read display, ensuring visibility in diverse working environments. The CT20 is also equipped with a data hold function, enabling users to freeze readings on the display for convenient analysis and record-keeping.

Safety is a priority with the Flir Extech CT20 Tester, which is CAT III 600V rated, ensuring users are protected during measurements on distribution circuits. Its durable construction is built to withstand everyday wear and tear, making it a reliable tool for frequent use. The tester is powered by a standard 9V battery, ensuring portability and ease of replacement.

Overall, the Flir Extech CT20 Tester combines essential features and user-friendly operation, making it an ideal choice for basic electrical testing tasks. Its robust functionality and safety ratings provide users with the confidence needed to perform accurate measurements in a variety of settings.

Flir Extech CT20 Tester F.A.Q.

How do I properly calibrate the Flir Extech CT20 Tester before use?

To calibrate the Flir Extech CT20 Tester, ensure the device is turned off and connect it to a known voltage source. Turn on the tester and adjust the calibration knob until the reading matches the known voltage.

What should I do if the display on the CT20 Tester is not turning on?

First, check the batteries to ensure they are installed correctly and have sufficient charge. If the problem persists, inspect the battery contacts for corrosion and clean them if necessary.

How can I test continuity using the Flir Extech CT20 Tester?

Set the tester to the continuity setting, indicated by a diode symbol. Connect the test leads to the circuit or wire you want to test. A continuous tone will indicate continuity.

What is the correct procedure for measuring AC voltage with the CT20 Tester?

Turn the dial to the AC voltage setting. Insert the black probe into the COM jack and the red probe into the V jack. Connect the probes across the voltage source and read the display.

How do I replace the fuse in the Flir Extech CT20 Tester?

Remove the battery cover and take out the batteries. Locate the fuse compartment and gently remove the blown fuse. Replace it with a new fuse of the same rating and reassemble the tester.

What should I do if the CT20 Tester gives inaccurate readings?

Ensure the test leads are in good condition and properly connected. Recalibrate the device and check for any environmental factors, such as temperature or humidity, that might affect readings.

Can the CT20 Tester measure DC current, and if so, how?

Yes, the CT20 Tester can measure DC current. Set the dial to the DC current range, connect the tester in series with the circuit, and read the current value displayed.

How can I maintain my Flir Extech CT20 Tester for optimal performance?

Regularly check and replace the batteries, clean the test leads, and store the device in a dry, dust-free environment. Perform calibration checks periodically to ensure accuracy.

What are the safety precautions I should take when using the CT20 Tester?

Always inspect the test leads and the tester for damage before use. Never exceed the maximum input limits, and ensure the tester settings match the measurement type.

How do I troubleshoot if the CT20 Tester does not respond to any input?

First, perform a reset by removing the batteries and reinstalling them. If the issue persists, check the internal components for any signs of damage or contact customer support.