Preparing for Operation 2

Instrument Preparation

Unpacking and Inspecting the Instrument

2-3.

Verify the contents of the shipping package against the checklist in the package. If any items are missing or damaged, report the problem immediately to your Fluke representative.

Carefully remove the instrument from its shipping container, saving the packaging materials if possible. Inspect the rear rubber feet of the instrument. If they are flush with the bottom of the case, then rotate them 180 degrees so that their support pads extend slightly below the bottom of the case.

Positioning and Rack Mounting

2-4.

Position the instrument in any location that meets the environmental specifications. (Refer to Appendix A.) The Y2641 Rack Mounting Kit includes hardware and instructions to mount one or two instruments (see "Options and Accessories" in Chapter 1).

Connecting to a Power Source and Grounding

2-5.

You can connect the instrument to an ac power source between 107 to 264V ac (45 to 65 Hz), to a dc power source between 9 and 16V dc, or to both. Fluke guarantees equipment specifications only for 50 Hz and 60 Hz operation. Refer to Figure 2-2 and the descriptions below for making power connections. If you connect both ac power and dc power to the instrument, the instrument uses ac power when it exceeds approximately 8 times the value of the dc voltage. Automatic switchover occurs between ac and dc power without interrupting instrument operation.

If you connect both ac and dc power to the instrument, the ac and dc ground connections must be to the same earth ground terminal.

2-5

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Fluke 2640A, 2645A user manual Unpacking and Inspecting the Instrument, Positioning and Rack Mounting

2645A, 2640A specifications

The Fluke 2640A and 2645A are advanced bench multimeters that represent a significant leap in measurement technology, designed primarily for electrical engineers and technicians who require precision and reliability in their readings. These multimeters are built to cater to complex applications in manufacturing, research, and development.

One of the standout features of the Fluke 2640A and 2645A is their high accuracy. With specifications that can reach up to 0.0035% DC Voltage accuracy, users can trust that their measurements will be consistent and precise. This is especially critical in fields like automated test equipment (ATE) where exact measurements can be crucial for product quality and safety.

Both models incorporate a large, easy-to-read display, making it convenient for users to view measurement results clearly from a distance. They also feature a wide measurement range, capable of handling a variety of tasks, from basic voltage and current measurements to more complex tasks such as resistance and temperature measurements with appropriate sensors.

The multimeters also stand out with their advanced data logging capabilities. The Fluke 2645A, for instance, can store up to 10,000 readings, allowing for extensive data collection and analysis without the need for constant monitoring. This is beneficial for long-term studies or processes that require continual oversight.

Connectivity is another key characteristic. Both the 2640A and 2645A support USB and RS-232 interfaces, which enable easy integration with computers and other devices for seamless data transfer. This feature is important for engineers who rely on software for data analysis and visualization.

Another notable technology included in these models is the Fluke Connect app compatibility, which allows users to remotely monitor measurements from their smartphones or tablets. This capability provides added flexibility, enabling technicians to work hands-free while still keeping an eye on process measurements.

Additionally, the Fluke 2645A comes with a graphical display option, allowing users to visualize measurement trends over time. This graphical representation can be invaluable for diagnosing issues or observing patterns in data.

In conclusion, the Fluke 2640A and 2645A multimeters offer exceptional performance with their high accuracy, extensive data logging, connectivity options, and advanced visualization capabilities. These features make them indispensable tools for professionals in a variety of fields, ensuring that they can achieve reliable results in their measurement endeavors.