2640A/2645A NetDAQ

Users Manual

Trend Link

The Trend Link data file format requires using the real-time trending capability offered by the Trend Link trending package. You can record data into Fast Binary and then convert it into the Trend Link format.

When using the Trend Link format, you may specify a deadband value for each channel. This value determines the amount of change that a channel reading value must undergo before an updated value is logged into the file. The deadband value helps to limit the quantity of data recorded to the data file.

The Trend Link format also allows you to place data into batches. The Trend Link application can display data from multiple batches, allowing direct comparison between current and historical data.

The auto rollover feature provides a means of logging data into a series of files rather than a single file, for easier data management. NetDAQ Logger will automatically “rollover” a data file when a specified condition is met, such as file size. When a rollover occurs, the current data is renamed and a new file is created with the original filename. ASCII (CSV) and binary files are sequenced as filename.001, filename.002, etc. In the Trend Link format, data is recorded into the *.now file and rolled into *.tlg files.

Configuring a Data File

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Complete the following procedure to configure a data file for recording instrument measurement data. Each Asynchronous Instrument or Group Instrument has its own data file.

1.Highlight the instrument icon on the Icon Bar (for a Group Instrument, select the Master). Open the Instrument Configuration dialog box.

2.Click Data File to open the Data File Configuration dialog box.

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Fluke 2645A, 2640A user manual Configuring a Data File

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.