Flir Extech EX503 User's Guide

Flir Extech EX503 Multimeter manual cover

Pages 14

Year 2013

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Flir Extech EX503 Multimeter Specification

The Flir Extech EX503 Multimeter is a robust and versatile device designed for both professional and industrial use, offering precise measurement capabilities. It features a rugged, double-molded housing providing enhanced durability, making it suitable for challenging environments. The multimeter offers a comprehensive range of measurement functions, including AC/DC voltage, AC/DC current, resistance, capacitance, frequency, and temperature, accommodating diverse electrical testing needs. It is equipped with a large, high-contrast LCD display to ensure clear visibility of readings even in low-light conditions. Additionally, the EX503 supports True RMS measurements, ensuring accurate readings for both linear and non-linear loads, which is essential for dealing with complex electrical systems. The multimeter also includes a built-in non-contact voltage detector, enhancing user safety by allowing for the quick identification of live circuits without direct contact. Its auto-ranging capability streamlines the measurement process, automatically adjusting to the appropriate range for the detected input, thus simplifying use for both novice and experienced users. The EX503 is rated to CAT IV 600V and CAT III 1000V safety standards, underscoring its reliability and safety for high-voltage applications. Furthermore, it includes a data hold function to freeze the display for easy recording of measurements, and a relative mode to zero out the display for comparative measurements. The device is powered by a standard 9V battery, ensuring long-lasting operation, and includes an auto power-off feature to conserve battery life when not in use. Compact and portable, the Flir Extech EX503 Multimeter is an essential tool for electricians, technicians, and engineers requiring precise and reliable measurement tools in their daily tasks.

Flir Extech EX503 Multimeter F.A.Q.

How do I measure AC voltage using the Flir Extech EX503 Multimeter?

To measure AC voltage, turn the dial to the V~ (AC Voltage) setting. Insert the black test lead into the COM terminal and the red test lead into the VΩHz terminal. Connect the test leads to the circuit under test and read the voltage on the display.

What should I do if the multimeter shows an 'OL' reading?

'OL' indicates an overload condition. Check the range setting and ensure it is set higher than the expected measurement. If measuring resistance, ensure the circuit is not live.

How can I replace the battery in the Flir Extech EX503 Multimeter?

To replace the battery, turn off the multimeter and disconnect the test leads. Remove the screw on the back cover using a screwdriver. Replace the old battery with a new 9V battery, ensuring correct polarity, and reattach the back cover.

What is the process for testing continuity with the EX503 Multimeter?

Turn the dial to the continuity test position, which is often marked with a diode symbol. Connect the test leads to the circuit and listen for the beep, which indicates continuity.

How do I calibrate the EX503 Multimeter?

Calibration of the EX503 should be performed by a qualified technician. For accurate results, it is recommended to send the device to an authorized service center.

What safety precautions should I follow when using the EX503 Multimeter?

Always inspect the test leads for damage before use, never exceed the rated measurement limits, and ensure the multimeter is set to the correct measurement type and range before connecting to a circuit.

How can I measure resistance with the EX503 Multimeter?

Set the dial to the resistance (Ω) setting. Ensure the circuit is de-energized, connect the test leads across the component, and read the resistance value on the display.

How do I troubleshoot if the multimeter is not turning on?

First, check and replace the battery if necessary. Ensure the battery contacts are clean and properly connected. If the issue persists, inspect the fuse and replace it if blown.

What regular maintenance should be performed on the EX503 Multimeter?

Regularly check the test leads for wear and tear, ensure the battery is in good condition, and keep the multimeter clean by wiping it with a damp cloth. Avoid using harsh chemicals.

How do I measure DC current using the Flir Extech EX503 Multimeter?

Turn the dial to the A= (DC Current) setting. Insert the black test lead into the COM terminal and the red test lead into the A terminal. Connect in series with the circuit and read the current value on the display.