2640A/2645A NetDAQ

Users Manual

changes in the Auto Rollover dialog box and then cancels the Data File Configuration dialog box, the message will appear.

Channel [GCN] must be defined for calculation of computed channel [GCN]

You tried to reference a channel set to OFF in a computed channel definition.

Make sure the channels you reference in computed channels have a function, even if the function is another computed channel.

Communications Configuration File is Damaged! Delete CCF.CFG file and reconfigure communications.

Your c:\Program Files\Fluke\netdaq\ccf.cfg file is corrupted.

Close NetDAQ Logger. Use the Windows Explorer feature to delete the existing ccf.cfg file. Open NetDAQ Logger, and then select the Communications Config command from the Setup menu to create a new ccf.cfg file. Reenter the network parameters for each instrument.

Communication Interruption!

Communications with your instrument have been interrupted. This may be a temporary condition.

Acknowledge the message. If the problem persists, check the network connections and make sure the instrument is powered.

Communication Parameters Corrupted! Continue?

Your instrument has detected a fault during internal performance monitoring.

This message does not appear under normal operating conditions. Note the message and click Yes to continue operations or No to terminate operations. If the fault recurs, stop operations, and cycle instrument power. If the fault still persists, remove the instrument from service and return it to a Fluke Service Center for repair, along with a description of the error message.

Communications with this instrument have already been opened!

You are trying to communicate with an instrument after communications have already been established with the instrument.

This message does not appear under normal operating conditions. Close NetDAQ Logger and restart the application.

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Fluke 2645A, 2640A user manual Communication Interruption, Communication Parameters Corrupted! Continue?

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.