Manuals / Fluke / Computer Equipment / Network Card

Fluke 2640A, 2645A user manual Analog Channel Integrity Test, Computed Channel Integrity Test

Models: 2645A 2640A

1 353
Download 353 pages 43.78 Kb
Page 187
Image 187

 

Maintenance

6

 

Performance Test

Analog Channel Integrity Test

6-13.

 

Complete the following procedure to test the integrity of each analog channel (2 to 20) to verify each analog channel is capable of making measurements.

1.Configure Channel for Ohms In NetDAQ Logger, configure channels 2 (then 3, then 4, etc. as this step is repeated) to 20 for Ohms-2W, 300 range [2640A] or 30K range [2645A]. (See “Configuring Analog Channel Functions" in Chapter 3 of this manual.)

2.Connect Test Leads Remove the Universal Input Module from the instrument, disconnect the test leads and connect them to the channel under test (starting with channel 2). Reinstall the Universal Input Module in the instrument.

3.Open Spy Window Select the Spy command from the Utilities menu. Select the analog channel under test. Click OK to open the Spy window.

4.Verify Reading Alternately open and short the test leads observing the measurement for the analog channel under test in the Spy window shows Overload for opened leads and very low resistance for shorted leads (less than 10 ohms for the 2640A, or less than 1k ohms for the 2645A).

5.Repeat Test for each Channel Repeat steps 2 to 4 for each channel (3, 4, 5, and so forth to channel 20).

Computed Channel Integrity Test

6-14.

Complete the following procedure to test the integrity of each computed channel (21 to 30) to verify each computed channel is capable of making measurements.

1.Configure Channels 1 and 2 for Ohms In NetDAQ Logger, configure channels 1 and 2 for Ohms-2W, 30k range. (See “Configuring Analog Channel Functions" in Chapter 3 of this manual)

2.Configure Channel for Average In NetDAQ Logger, configure channels 21 to 30 for ChanA - ChanB (Difference) with the difference channels being analog channel 1 and analog channel 2. (See "Configuring Computed Channel Functions" in Chapter 3 of this manual.)

3.Connect Test Leads Remove the Universal Input Module from the instrument and connect test leads to channels 1 and 2. Reinstall the Universal Input Module in the instrument.

4.Open Spy Window Select the Spy command from the Utilities menu. Select the computed channels 21 to 28. Click OK to open the Spy window.

5.Verify Reading Alternately open and short both sets of test leads observing the measurement for the computed channel under test in the Spy window shows +Overload for opened leads and very low resistance for shorted leads.

6.Repeat Test Repeat steps 4 to 5 for channels 29 and 30.

6-15

Page 186 Page 188
Page 187
Image 187
Fluke 2640A, 2645A user manual Analog Channel Integrity Test, Computed Channel Integrity Test
Page 186 Page 188

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.