Maintenance 6

Service

4.The following tests require a Fluke 5725A Amplifier (or equivalent) to be used with the 5700A. The input level for the performance test will be set on the 5700A but will be output from the 5725A Amplifier.

Connect a cable from the Output VA HI and LO connectors of the 5725A to the l0A and COM connectors on the Fluke 45. Select the function and range on the Fluke 45 and the input level from the 5700A using the values contained in Table 6-4. The dis- play should read between the minimum and maximum readings listed in the table.

Service

If you suspect that the meter has failed, review this manual to make sure you are operating it correctly. If the meter still fails to operate properly, pack it securely (in its original container if available) and forward it, postage paid, to the nearest Fluke Service Center. Include a brief description of the problem. Fluke assumes NO responsibility for damage in transit.

To locate an authorized service center, call Fluke using any of the phone numbers listed below, or visit us on the World Wide Web: www.fluke.com

1-800-44-FLUKE (1-800-443-5853) in U.S.A and Canada

31 40 267 8200 in Europe

1-425-356-5500 from other countries

Table 6-2. Performance Tests for Volts, Diode Test, Ohms, and Frequency, Functions

Function

W

Range (Rate)

100 mV (slow)

1000 mV (slow)

300mV

3V

30V

300V

1000 V

300 mV

3V

30V

300V

750V

Input Level

Short +90 mV +900 mV short

300mV

+3 V -3 V +30 V +300 V +1000 V short open

Short

15mV

300mV

3.0V 30 V 300 V 750 V

Frequency

1kHz

100kHz

1kHz

100kHz

1kHz

1kHz

1kHz

1kHz

 

Display

 

 

 

Min

 

Max

 

 

 

-0.006

0.006

89.971

90.029

899.71900.29

-0.020.02

299.90300.10

2.99903.0010

-3.0010 -2.9990

29.99030.010

299.90300.10

999.51000.5

0.00080.0008

(tone)

(tone)

OL

OL

<75

14.8715.13

13.7516.25

299.30300.70

284.50315.50

2.99303.0070

29.93030.070

299.30300.70

747.5752.5

6-5

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Fluke 45 user manual Service, Input Level, Frequency, Min Max

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.