45

Users Manual

The default meter setting is: volts tic, autoranging, secondary display inactive. A different power-up configuration can be set by pressing Sand Eat the same time; the present configuration of the meter then becomes the power-up configuration.

A description of message exchange options:

5A. The size and behavior of the input buffer.

The input buffer size is 350 bytes. If the input buffer fills, the IEEE-488.1 bus will be held off until there is room in the buffer for a new byte.

5B. Which queries return more than one <RESPONSE MESSAGE UNIT>, Section 6.4.3.

The *IDN? query always returns four<RESPONSE MESSAGE UNITS>. The CAL? and MEAS? queries may return one or two <RESPONSE MESSAGE UNITS>—one if only the primary display is in use, two if both the primary and secondary displays are in use.

5C. Which queries generate a response when parsed, Section 6.4.5.4.

All queries generate a response when parsed.

5D. Which queries generate a response when read, Section 6.4.5.4.

No queries generate a response when read by the controller.

5E. Which commands are coupled, Section 6.4.5.3.

No commands are coupled.

6.A list of functional elements used in constructing device-specific commands. Whether <compound command program header> elements are used must also be included, Section 7.1.1 and 7.3.3.

Device-specific commands used:

<PROGRAM MESSAGE> <PROGRAM MESSAGE TERMINATOR> <PROGRAM MESSAGE UNI T> <PROGRAM MESSAGE UNIT SEPARATOR> <COMMAND MESSAGE UNIT> <QUERY MESSAGE UNIT> <COMMAND PROGRAM HEADER> <QUERY PROGRAM HEADER> <PROGRAM DATA> <CHARACTER PROGRAM DATA> <DECIMAL NUMERIC PROGRAM DATA>

7.A description of any buffer size limitations related to block data, Section 7.7.6.5. No block data is used.

8.A list of <PROGRAM DATA> elements which may appear within an <expression> as well as the maximum sub-expression nesting depth Any additional syntax restrictions which the device may place on the <expression> shall also be included.

No sub-expressions are used. The only <PROGRAM DATA> functional elements used are <CHARACTER PROGRAM DATA> AND <DECIMAL NUMERIC PROGRAM DATA>.

9.A description of the response syntax for every query, Section 8.

RATE?, FUNC1?, FUNC2?, RANGE1?, RANGE2?, BUTTON?, EEREG?, DBREF?, HOLDTHRESH?, RELBASE?, *ESR?, *SRE?, *TST?, and *OPC? all return <NRI

NUMERIC RESPONSE DATA>.

FUNC1?, FUNC2?, COMP?, and SERIAL? all return <CHARACTER RESPONSE DATA>.

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Fluke 45 user manual Numeric Response Data
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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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