MULTIMETER SAFETY

The Fluke 45 Dual Display Multimeter has been designed and tested according to IEC Publication 348, Safety Requirements for Electronic Measuring Apparatus. This manual contains information and warnings which must be followed to ensure safe operation and retain the meter in safe condition. Use of this equipment in a manner not specified herein may impair the protection provided by the equipment.

The meter is designed for IEC 664, Installation Category II use. It is designed for use in circuits with a VA rating of <4800 VA.

Some common international electrical symbols used in this manual are shown below.

B

F

D

I

AC - ALTERNATING CURRENT

DC - DIRECT

CURRENT

EITHER AC OR DC CURRENT

FUSE

Y

J

W

T

DANGEROUS

VOLTAGE

EARTH GROUND

SEE EXPLANATION IN MANUAL

DOUBLE INSULATION FOR PROTECTION AGAINST ELECTRIC SHOCK

Before using the meter, read the following safety information carefully. In this manual, "WARNING," is reserved for conditions and actions that pose hazard(s) to the user; "CAUTION," is reserved for conditions and actions that may damage your meter.

WWARNING

TO AVOID ELECTRICAL SHOCK OR OTHER INJURY:

Avoid working alone

Follow all safety procedures for equipment being tested.

Inspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Damaged leads should be replaced.

Be sure the meter is in good operating condition.

Select the proper function for your measurement.

To avoid electrical shock, use caution when working above 60V dc or 30V ac RMS.

Disconnect the live test lead before disconnecting the common test lead.

Disconnect the power and discharge high-voltage capacitors before testing in and LR.

When making a current measurement, turn the circuit power off before connecting the meter in the circuit.

Check meter fuses before measuring transformer secondary or motor winding current. (See Section 6, MAINTENANCE.") An open fuse may allow high voltage build-up, which is potentially hazardous.

Use clamp-on probes when measuring circuits exceeding 10 amps.

When servicing the meter, use only the replacement parts specified.

Do not allow meter to be used if it is damaged or if its safety is impaired.

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Fluke 45 user manual Multimeter Safety

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.