Manuals / Fluke / Computer Equipment / Network Card

Fluke 2640A Instrument model does not match! Reconfigure Communications, Instrument not found

Models: 2645A 2640A

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Error Messages & Exception Conditions

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Error and Status Messages

Instrument model does not match! Reconfigure Communications!

The instrument model does not match the entry in the Communications

Configuration File.

Modify the instrument model number in the Communications Configuration File (select the Communications Config command from the Setup menu and click the Modify button).

Instrument not found!

You have a communications problem with the instrument or with the network. (The host computer Ethernet interface is operating correctly, i.e., the problem is not with the host computer.)

If the network connection has never worked, check the installation procedures in Chapter 2, or "Troubleshooting Network Problems."

If the network connection stopped working, check the following:

Network Connections Verify all network connections. For the isolated network using 10Base2 coaxial cable, be sure the 50-Ohm terminations at the network endpoints are still in place, especially if you have made a direct connection between the instrument and the host computer. For a network using 10BaseT unshielded twisted-pair cable, be sure you have used a standard cable when connecting to a hub, or a reverse-signal cable (reversing the transmit and receive wires) when making a direct connection between the instrument and the host computer.

Instrument Preparation Verify the instrument is powered and prepared for operation. The network parameters entered at the front panel of the instrument must agree with the network parameters at the host computer Communications Configuration File. For the isolated network, this includes the BCN and isolated network. For the general network, this includes the BCN, general network, socket port, IP address and default gateway.

Instrument Scan Queue Overflow! Newest scans discarded.

NetDAQ Logger is unable to retrieve scans from the instruments quickly enough and the instrument scan queue has overflowed. In this condition, the instrument is discarding the newest scans and saving the oldest scans.

Improve the data throughput characteristic. (See "Optimizing Performance for Speed" in Chapter 4 of this manual.) When the scan queue overflows, the action taken depends on your setting in the netdaq.ini file, i.e., discard the newest scans or overwrite the oldest scans. (See, “Configuring the netdaq.ini file” in Chapter 3 of this manual.)

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Fluke 2640A, 2645A user manual Instrument model does not match! Reconfigure Communications, Instrument not found
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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.