2640A/2645A NetDAQ

Users Manual

3.Verify Digital I/O Input for all Set Lines In sequence, individually ground each DIO line to the GND line using the DIO wires connected in Step 1. Note the change in the DIO status reported in the Spy window as follows:

None grounded Reported DIO Status = 255

DIO0 grounded Reported DIO Status = 254

DIO1 grounded Reported DIO Status = 253

DIO2 grounded Reported DIO Status = 251

DIO3 grounded Reported DIO Status = 247

DIO4 grounded Reported DIO Status = 239

DIO5 grounded Reported DIO Status = 223

DIO6 grounded Reported DIO Status = 191

DIO7 grounded Reported DIO Status = 127

4.Close Spy Window.

Totalizer Tests

6-27.

The Totalizer Tests check the Totalizer feature for counting and sensitivity.

Totalizer Count Test

6-28.

This test checks the ability of the Totalizer feature to count.

1.Enable Totalizer Debounce In NetDAQ Logger, select Setup Instrument Configuration to open the Instrument Configuration dialog box. Check Totalizer Debounce if it is not already checked and click OK.

2.Open Spy Window Select the Spy command from the Utilities menu. Select 01TOTAL. Click OK to open the Spy window.

3.Increase Totalizer Count Connect the (Totalizer) test lead to the GND line and disconnect again. Each time this is done, the Totalizer count should increase one.

4.Verify Totalizer Count The Spy window displays the new Totalizer count which is equal to the number of contacts between totalizer and ground.

5.Close Spy Window.

Totalizer Sensitivity Test

6-29.

This test checks the ability of the Totalizer feature to count voltage transition at a particular sensitivity level.

1.Disable Totalizer Debounce In NetDAQ Logger, select Setup Instrument Configuration to open the Instrument Configuration dialog box. Uncheck Totalizer Debounce if it is currently checked and click OK.

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Fluke 2645A, 2640A user manual Totalizer Tests, Totalizer Count Test, Totalizer Sensitivity Test

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.