Service and Parts

To contact Fluke, call one of the following telephone numbers:

USA and Canada: 1-888-99-FLUKE (1-888-993-5853)

Europe: +31 402-678-200

Japan: +81-3-3434-0181

Singapore: +65-*-276-6196

Anywhere in the world: +1-425-356-5500

Or, visit Fluke’s Web site at www.fluke.com.

Item

Description

Fluke

Quan.

 

 

PN

 

BT1

 

Battery, 9 V, NEDA 1604/IEC 6F22, or

 

 

NEDA 1604A/IEC 6LR61

 

 

Models 21/75:

F1*

 

Fuse, F630 mA, 250 V, Min Interrupt

 

 

Rating 1500 A or IEC 127-1

F2*

 

Fuse, F11 A, 1000 VAC/DC,

 

 

Min Interrupt Rating 17 kA

 

 

Models 23/77:

F1*

 

Fuse, F44/100 A, 1000 VAC/DC,

 

 

Min Interrupt Rating 10 kA

F2*

 

Fuse, F11 A, 1000 VAC/DC,

 

 

Min Interrupt Rating 17 kA

696534 1

614487

740670 1

943118 1

943121 1

943118 1

* For safety, use exact replacement

Specifications

Accuracy is specified for a period of one year after calibration, at 18°C to 28°C (64°F to 82°F) with relative humidity to 90%. AC conversions are ac-coupled, average responding, and calibrated to the RMS value of a sine wave input.

Accuracy specifications are given as:

±([% of reading] + [number of least significant digits])

Maximum Voltage Between

Rated voltage

any Terminal and Earth

 

Ground

 

Display

Digital: 3,200 counts, updates 2.5/sec

 

Analog: 31 segments, updates 25/sec

Response Time of Digital

V ac < 2 s

Display

V dc < 1 s

 

Ω < 1s to 320 kΩ, < 2s to 3.2 MΩ,

 

< 10 s to 32 MΩ

Operating Temperature

0°C to 50°C

Storage Temperature

-40°C to 60°C

Temperature Coefficient

0.1 x (specified accuracy)/°C

 

(<18°C or >28°C)

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Fluke 21, 75, 23, 77 instruction sheet Specifications, Service and Parts

77, 23, 21, 75 specifications

The Fluke 75, 21, 23, and 77 are a series of digital multimeters (DMMs) known for their reliability, precision, and ease of use in various measuring applications. These models cater to a wide range of users, from professional electricians to DIY enthusiasts.

The Fluke 75 stands out for its advanced features, including a large, easy-to-read display that provides clear numerical and graphical readings. It supports a wide voltage range and can measure AC and DC currents. Additionally, the Fluke 75 is equipped with a built-in data logging function, enabling users to store measurements for future analysis. Its compact size and durable design make it suitable for both field and lab environments.

The Fluke 21 model focuses on simplicity and functionality. Designed primarily for basic electrical troubleshooting, it provides accurate measurements of voltage, current, and resistance. The user-friendly interface ensures that even those with minimal technical knowledge can operate the device effectively. The Fluke 21 is also known for its rugged construction, maintaining its performance even in harsh working conditions.

Fluke 23 takes it up a notch, offering a broader set of measurement capabilities, including capacitance and temperature measurement. This model features a unique dial that enhances user experience by allowing quick and easy access to various functionalities. Furthermore, the Fluke 23 has improved accuracy levels compared to its predecessor, making it an excellent choice for professionals who require high-precision measurements.

The Fluke 77 is another versatile option in this series, offering advanced measurement functions tailored for more demanding applications. It provides true RMS measurement, which allows for accurate readings of non-linear signals commonly found in modern electronics. The Fluke 77’s integrated safety features, including a CAT III safety rating, ensure that users can work with confidence in high-voltage environments.

Each of these multimeters incorporates Fluke's renowned build quality and robustness, ensuring longevity and resistance to environmental stressors. With features such as automatic ranging, backlighting for low-light conditions, and easy-to-navigate menus, these models exemplify the company's commitment to user-friendly design and effective measurement solutions. Overall, the Fluke 75, 21, 23, and 77 are exceptional tools that cater to a diverse array of electrical measurement needs, making them reliable choices for professionals and hobbyists alike.