2640A/2645A NetDAQ

Users Manual

The following describes the parameters in the netdaq.ini file. If you alter any of the settings, save the old file under a different name in case you want to revert back to the default settings.

∙MemoryWrapAround=True

This is the instruction for the instrument to follow if its internal scan queue becomes full. When set to true, the instrument overwrites the oldest readings in the buffer. When set to false, the instrument discards the latest readings.

∙AlarmCheckingIntvl_2640A=1.000

When you select Alarm Trigger for a 2640A instrument, channels eligible for alarm triggering are checked for alarms at this interval. The minimum is 0.5 seconds and the maximum is 86400 seconds (24 hours).

∙AlarmCheckingIntvl_2645A=0.100

When you select Alarm Trigger for a 2645A instrument, channels eligible for alarm triggering are checked for alarms at this interval. The minimum is 0.05 seconds and the maximum is 86400 seconds (24 hours).

∙AutoScanDisable=True

When set to true, an instrument automatically disables scanning if its scan queue is full and it has not received any commands from the host for 5 minutes. This feature helps extend the lifetime of relays in the instrument.

∙CommTimeout=10

This is the duration NetDAQ Logger allows for an instrument to respond to a command. If there is no response from an instrument after nn seconds, NetDAQ Logger displays an error. The minimum is 3 seconds and the maximum is 1000 seconds.

∙TLDir=c:\Program Files\Fluke\tl

This is the directory for the Trend Link application. If Trend Link is located somewhere else, you are prompted for the name of the actual directory the next time you perform Trend Link related activities in NetDAQ Logger. You may also modify this setting by selecting Plot/Trend Trend Link Directory.

∙TLFile=tl32.exe

This is the file in TLDir that executes when the you select Plot/Trend Show Trend Link.

∙TLTitle=Trend Link for Fluke

This is the title of the Trend window that appears when TLFile executes.

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Fluke user manual 2640A/2645A NetDAQ
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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.
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