General Maintenance 3

Introduction

3-1. Introduction

This section provides handling, cleaning, fuse replacement, disassembly, and assembly instructions.

3-2. Warranty Repairs and Shipping

If your instrument is under warranty, see the warranty information at the front of this manual for instructions on returning the unit. The list of authorized service facilities is included in Section 6.

3-3. General Maintenance

3-4. Required Equipment

Equipment required for calibration, troubleshooting, and repair of the instrument is listed in Section 4 (Table 4-1.)

Refer to the Fluke "Surface Mount Device Soldering Kit" for a list of special tools required to perform circuit assembly repair. (In the USA, call 1-800-526-4731 to order).

3-5. Power Requirements

Warning

To avoid shock hazard, connect the instrument powercord to a power receptacle with earth ground.

If you have not already done so, plug the line cord into the connector on the rear of the instrument. The instrument operates on any line voltage between 90V ac and 264V ac and at any frequency between 45 and 440 Hz. However, the instrument is warranted only to meet published specifications at 50/60 Hz. The instrument also operates from dc power (9 to 16V dc). DC input power is connected to the rear input connector J6, pin 8 (DCH), and pin 7 (DCL). If both ac and dc power sources are connected to the instrument, the ac power source is used if the ac line voltage exceeds approximately 8.3 times the dc voltage. Automatic switchover between ac and dc occurs without interrupting instrument operation. The instrument draws a maximum of 10 VA on ac line power or 4W on dc power.

3-6. Static Safe Handling

All integrated circuits, including surface mounted ICs, are susceptible to damage from electrostatic discharge (ESD). Modern integrated circuit assemblies are more susceptible to damage from ESD than ever before. Integrated circuits today can be built with circuit lines less than one micron thick, allowing more than a million transistors on a 1/4-inch square chip. These submicron structures are sensitive to static voltages under 100 volts. This much voltage can be generated on a dry day by simply moving your arm. A person can develop a charge of 2,000 volts by walking across a vinyl tile floor, and polyester clothing can easily generate 5,000 to 15,000 volts during movement against the wearer. These low voltage static problems are often undetected because a static charge must be in the 30,000 to 40,000 volt range before a person feels a shock.

3-3

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Fluke 2625A, 2635A service manual Warranty Repairs and Shipping, General Maintenance, Required Equipment, Power Requirements
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2635A, 2625A specifications

The Fluke 2625A is a sophisticated data logger designed for a wide range of industrial and laboratory applications. This versatile instrument excels in capturing and monitoring temperature and voltage measurements with precision and reliability. One of its standout features is its ability to record data from various sensors, making it ideal for environments where comprehensive data acquisition is critical.

Equipped with a large LCD display, the Fluke 2625A provides clear and user-friendly access to real-time measurement data. Its graphical interface allows users to visualize trends and monitor readings easily, which significantly enhances usability. The device supports a variety of input types and can connect to thermocouples, RTDs, and other sensors, offering great flexibility for various measurement tasks.

The Fluke 2625A employs advanced measurement technologies that ensure accuracy in data logging. With a high sampling rate, it captures fast-changing signals while maintaining data integrity. The device features a built-in memory that allows for extensive logging, accommodating long-term monitoring tasks without requiring constant oversight. Users can set it to log data at specified intervals, offering customizable solutions for different monitoring needs.

Another significant characteristic of the Fluke 2625A is its robust communication capabilities. The device supports USB and RS-232 interfaces for easy connectivity with computers and other devices, making data transfer and analysis seamless. This feature is especially beneficial for users who need to compile or analyze large sets of data quickly.

Furthermore, the Fluke 2625A is designed with durability in mind. Its rugged construction makes it suitable for challenging environments, including those with high levels of vibration, dust, or moisture. This reliability ensures that the device can withstand the rigors of fieldwork while still delivering accurate measurements.

In summary, the Fluke 2625A is a powerful data logger that combines versatility, accuracy, and reliability. Its user-friendly interface, advanced measurement technologies, and robust design make it an essential tool for professionals in various industries, from manufacturing and HVAC to research and development. Whether monitoring temperature changes in a laboratory or assessing voltage levels in an industrial setting, the Fluke 2625A stands out as a trusted solution for effective data logging and analysis.
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