1 Before You Start

Safety Information

cautions. Before working inside the equipment, turn the power off and disconnect the power cord.

•Always replace the fuse with one of the same rating, voltage, and type.

•This instrument is intended for indoor use only.

•Overhead clearance is required. DO NOT place this instrument under a cabinet or other structure.

•DO NOT use this unit for any application other than calibration work.

•DO NOT use this unit in environments other than those listed in the user’s guide.

•DO NOT operate near flammable materials.

•Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution.

•Completely unattended high temperature operation is not recommended for safety reasons.

•If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

•Before initial use, or after transport, or after storage in humid or semi-hu- mid environments, or anytime the instrument has not been energized for more than 10 days, the instrument needs to be energized for a "dry-out" period of 2 hours before it can be assumed to meet all of the safety re- quirements of the IEC 1010-1. If the product is wet or has been in a wet environment, take necessary measures to remove moisture prior to apply- ing power such as storage in a low humidity temperature chamber operating at 50°C for 4 hours or more.

•The instrument generates extreme temperatures. Precautions must be taken to prevent personal injury or damage to objects. Sensors may be ex- tremely hot when removed from the instrument. Cautiously handle sen- sors to prevent personal injury. Carefully place sensors on a heat resistant surface or rack until they are at room temperature. Allow the surface to cool before transporting the instrument.

•Use only a grounded AC mains supply of the appropriate voltage to power the instrument. Refer to Section 3.1, Specifications for power de- tails.

•The instrument is equipped with operator accessible system fuses. If a fuse blows, it may be due to a power surge or failure of a component. Re- place the fuse once. If the fuse blows a second time, it is likely caused by failure of a component part. If this occurs, contact an Authorized Hart Scientific Service Center (see Section 1.3). Always replace the fuse with one of the same rating, voltage, and type. Never replace the fuse with one of a higher current rating.

•Follow all safety guidelines listed in the user’s manual.

•Calibration Equipment should only be used by Trained Personnel.

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Fluke 3125 user manual Safety Information
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3125 specifications

The Fluke 3125 is a versatile and powerful digital multimeter designed for electrical technicians and engineers. This device stands out in the market for its precise measurements and rugged construction, making it ideal for both fieldwork and laboratory use.

One of the main features of the Fluke 3125 is its ability to measure a wide range of electrical parameters. With a measurement capability that includes AC and DC voltage up to 1000V, AC and DC current up to 10A, and resistance measurements up to 40MΩ, this multimeter is well-equipped to handle diverse applications. Additionally, it can perform continuity tests, diode tests, and frequency measurements, giving technicians the flexibility they need in various situations.

The Fluke 3125 employs advanced measurement technologies that enhance its performance. For example, it uses True RMS (Root Mean Square) measurement technology, which accurately measures the voltage and current levels of non-linear loads. This feature is especially important when working with fluctuating signals, ensuring reliable readings in real-world scenarios. Furthermore, the device is equipped with a built-in temperature measurement function, which adds an extra layer of utility for electricians dealing with HVAC systems or equipment testing.

Another notable characteristic of the Fluke 3125 is its robust design. Built to withstand tough environments, this multimeter is rated for drop protection and comes with a high IP rating, ensuring it is dust and splash resistant. The durability of the device makes it suitable for field operations where reliability is paramount. The user interface is also intuitive, with a large, backlit display that allows for easy reading of measurements in various lighting conditions.

Powering the Fluke 3125 is simple, as it operates on standard alkaline or rechargeable batteries, providing flexibility for users. Battery life is notably long, allowing technicians to work uninterrupted for extended periods. The device also features an auto-off function to conserve power when not in use, further enhancing its usability.

In summary, the Fluke 3125 is a multi-functional digital multimeter that combines accurate measurements, advanced technologies, and durability, making it an essential tool for professionals in the electrical field. Its wide measurement range and robust features ensure it meets the demands of various applications, whether in the lab, on-site, or in industrial settings.
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