2640A/2645A NetDAQ

Users Manual

low system data throughput because of the processing rate of host computers and disk systems, and instruments that are physically close to the host computer.

Now, the increased processing capability of affordable host computers, increased channel measurement rates, and pressure to place the instruments close to the signal source have made support of high-speed, long distance communication techniques necessary. At the same time, many companies are installing network wiring to support general client/server processing on Personal Computers.

Using networking techniques to communicate between the PC and the instrument has many advantages (and a few disadvantages). Advantages include:

∙High data transfer rates

∙Standard wiring methods and use of in-place wiring

∙Standard protocols

∙Low cost interface boards

Disadvantages include:

∙Increased setup complexity

∙Increased instrument power consumption (compared to RS-232)

∙Additional interface in the PC

The NetDAQ instrument and host computer software use Ethernet wiring and low level protocols, TCP/IP high level protocols, and the WINSOCK application interface layer. These are all public domain, non-proprietary standards with multiple-company support. Use of these non-proprietary protocols and hardware ensures that NetDAQ instruments and software will operate on most installed networks and have the lowest possible cost using off-the-shelf commercial networking products. Read “Network Primer” in this appendix for more information on these standards.

NetDAQ and Your Network Administrator

I-3.

If you plan to communicate between your host PC and the NetDAQ instruments on a network that is totally isolated from any other network communication devices, you can install the network and set up the devices without consulting Network Administration. However, if you're going to communicate on an existing network, you need to coordinate this with your Network Administrator. Specifically, you need to ask the following questions before installing and setting up your instruments and host PC:

1.What values should I use for my IP addresses, Socket Port Number, and Subnet Mask?

I-2

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Fluke 2645A, 2640A user manual NetDAQ and Your Network Administrator
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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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