Chapter 1

Introduction

Introducing the Fluke 45 Dual Display Multimeter

Note

This manual contains information and warnings that must be followed to ensure safe operation and retain the meter in safe condition.

WWarning

To avoid electric shock or injury, read the "multimeter safety" sheet preceding Chapter 2 before using the meter.

The Fluke 45 Dual Display Multimeter (also referred to as "the meter") is a 4/2-digit (30,000 count) meter with a 5-digit (100,000 count) high resolution mode. The meter is designed for bench-top, field service, and system applications. Complete specifications are provided in Appendix A.

With the (optional) IEEE-488 computer interface installed, the meter is fully programmable for use on the IEEE Standard 488.1 interface bus(1987). The meter is also designed in compliance with supplemental standard IEEE-488.2 (1987).

Some features provided by the meter are:

•A dual, vacuum fluorescent, display that allows two properties of an input signal to be displayed at the same time. (e.g., ac voltage in one display and frequency in the other).

•Remote operation via the RS-232 interface (included) or the IEEE-488 interface (optional).

•True rms ac

•(AC + DC) rms, calculated

•Frequency measurements to greater than 1 MHz

•I µV sensitivity in volts dc

•Decibels with variable reference impedance and audio power measurement capability.

•A compare mode to determine if a measurement is within, above, or below a designated range.

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Fluke user manual Introduction, Introducing the Fluke 45 Dual Display Multimeter
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45 specifications

The Fluke 45 is a versatile and high-precision Digital Multimeter that is designed for a wide range of applications in electrical testing, troubleshooting, and maintenance. Known for its reliability and advanced features, the Fluke 45 is an essential tool for engineers, technicians, and professionals who require accurate measurement capabilities.

One of the standout features of the Fluke 45 is its ability to measure both AC and DC voltage and current. With a maximum input voltage of 1000 volts and current ranges up to 10 amps, users can conduct a variety of electrical tests with confidence. The device is equipped with an intuitive dual display, allowing for simultaneous viewing of multiple measurements. This feature enhances usability during complex diagnostics.

The Fluke 45 also boasts an impressive resolution of 0.1 mV and a basic accuracy of 0.25%, which translates to highly reliable readings. The auto-ranging capability simplifies the measurement process, automatically selecting the appropriate range based on the input signal, thus saving time and reducing user error.

In addition to voltage and current measurements, the Fluke 45 features resistance measurement capabilities, with a range of up to 40 MΩ. This makes it an effective tool for testing circuits, identifying faults, and ensuring the integrity of electrical systems. The continuity test function, complete with a built-in beeper, assists in quickly diagnosing wiring issues.

Another remarkable characteristic of the Fluke 45 is its frequency measurement capabilities, which can measure frequencies up to 1 MHz. This is particularly useful in applications involving signal analysis and troubleshooting oscillators.

Moreover, the Fluke 45 is designed with user convenience in mind. It is lightweight and portable, making it easy to carry around, whether on a job site or in a workshop. The rugged construction, reinforced with high-quality materials, ensures it can withstand harsh conditions often encountered in the field.

To enhance functionality, the Fluke 45 features a data hold function that freezes the displayed measurement for easier reporting. Additionally, it can store data for later retrieval, making it convenient for users who need to compile test results over time.

In summary, the Fluke 45 Digital Multimeter is an advanced instrument that combines precision, versatility, and user-friendly design. Its wide measurement capabilities, high accuracy, and durable build make it an invaluable tool for professionals in diverse electrical and electronic applications. Whether for routine maintenance or complex troubleshooting, the Fluke 45 stands out as a reliable partner in achieving accurate and efficient results.
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