2640A/2645A NetDAQ

Users Manual

When a grouped instrument is externally wired, you can select any combination of trigger types for the Master instrument: Interval Trigger, External Trigger, or Alarm Trigger. NetDAQ Logger configures the Slaves for External Trigger so they will respond to the trigger signal from the Master.

Unwired Group

If you cannot wire the grouped instrument, select only the Interval Trigger for the Master. NetDAQ Logger automatically sets all Slaves to use the Interval Trigger with the same Interval 1 value as the Master. If any additional trigger types are selected for the Master, then additional scans might be triggered in the Master that are not triggered in the Slaves. This could cause Slave scan data to be duplicated with more than one Master scan.

To use this method, uncheck the “Group is Externally Wired” check box in the Group Instruments dialog box.

To designate a group instrument, complete the following procedure:

1. Select Setup Group Instruments to open the Group Instruments dialog box.

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2.From the Instruments list, designate each instrument as Master, Slave, or Asynchronous:

Highlight the Master instrument and select the Master button. Designate the Slaves in a similar fashion. Check the Group is Externally Wired box if applicable.

Highlight the independent instruments, and select the Async button.

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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.