45

Users Manual

Cabling the Meter to a Host

The meter communicates with a host through an interface connector on the rear panel of the meter. First turn the meter off, then cable the meter to the host.

Getting Started With An Installation Test

After the meter has been cabled to a host and prepared to communicate with it via the RS-232 or IEEE-488 interface (as described above), test the system to verify that it is operational.

Installation Test for RS-232 Operations

The procedure below illustrates how the meter performs a computer interface command and, at the same time, confirms that the meter has been properly set up and cabled for remote operations:

1.Press the POWER button in to turn the meter on.

2.Verify that the computer interface parameters (e.g., baud, parity, etc.) are set correctly.

3.Turn the host on.

4.Send the meter the following command. *IDN? <CR>

5.Verify that the meter sends the following response FLUKE, 45, nnnnnnn, n.n Dn.n

=>

nnnnnnn is your meter’s serial number; n.n identifies the main software version; and Dn.n identifies the display software version. The RS-232 prompt => means that the command has been executed and the interface is ready to accept another command.

Installation Test for IEEE-488 Operations

The procedure below illustrates how the meter performs a computer interface command and, at the same time, confirms that the meter has been properly set up and cabled for IEEE-488 operations:

1.Press the POWER button in to turn the meter on.

2.Verify that the meter’s IEEE-488 address is set correctly.

3.Turn on the host or controller.

4.Enter the following at the host:

Note

This is a program as entered from a Fluke 1722A Instrument Controller using Fluke BASIC commands. Syntax may vary with the host.

INIT PORT 0<CR>

CLEAR PORT 0<CR>

PRINT @<address of meter>, "*IDN?"<CR>

INPUT LINE @<address of meter>, A$<CR>

PRINT A$<CR>

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Fluke 45 Getting Started With An Installation Test, Cabling the Meter to a Host, Installation Test for RS-232 Operations

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.