45

Users Manual

Table 5-8. IEEE-488 Interface Function Subsets

SH1

Source Handshake

AH1

Acceptor Handshake

T5

Talker

L4

Listener

SRI

Service Request

RL1

Remote/Local

DC1

Device Clear*

DT1

Device Trigger

E1

Electrical interface

^C (CNTRL C) is the RS-232 equivalent of DC1, causing <CR><LF> and a new prompt to be output.

Table 5-9. IEEE-488 Common Commands

Command

*CLS

*ESE <value>

*ESE?

*ESR?

*IDN

*OPC

*OPC?

*RST

Name

Clear Status

Event Status Enable

Event Status Enable Query

Event Status

Register Query

Identification Query

Operation Complete Command

Operation Complete Query

Reset

Description

Clears all event registers summarized in the status byte, except for "Message Available," which is cleared only if *CLS is the first message in the command line.

Sets "Event Status Enable Register" to <value>, an integer between 0 and 255. <value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register. If <value> is not between 0 and 255, an Execution Error is generated.

EXAMPLE: decimal 16 converts to binary 00010000. Sets bit 4 (EXE) in ESE to 1.

Meter returns the <value> of the "Event Status Enable Register" set by the *ESE command. <value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register.

Meter returns the <value> of the "Event Status Register" and then clears it. <value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register.

Meter returns the identification code of the meter as four fields separated by commas. These fields are: manufacturer ("FLUKE"); model ("45"); seven-digit serial number; version of main software and version of display software.

Meter sets the Operation Complete bit in the Standard Event Status Register when parsed.

Meter places an ASCII "1 " In The output Queue when parsed.

Meter performs power-up reset except that the state of IEEE- 488 interface is unchanged, including: 1) instrument address, 2) Status Byte and, 3) Event Status Register.

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Fluke 45 user manual IEEE-488 Interface Function Subsets, IEEE-488 Common Commands
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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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