Index (continued)

ac voltage measurement (2645A), A-19 combined 2640A/2645A, A-1

dc voltage measurement (2640A), A-8 dc voltage measurement (2645A), A-17 frequency measurement (2640A), A-16 frequency measurement (2645A), A-25general 2640A/2645A, A-1

RTD’s 2-Wire per ITS-1990 measurement specifications (2640A), A-14

RTD’s 4-Wire, per ITS-1990 measurement (2640A), A-13 thermocouple per ITS-1990 measurement (2640A), A-14 thermocouple per ITS-1990 measurement (2645A), A-23

Speed, optimizing performance for, 4-20 Spy window,, 4-9

Starting and stopping logging, 4-3 Starting logging automatically, 3-14 Starting NetDAQ Logger, 3-3 Starting NetDAQ Logger with a setup

file, 3-13

Starting or stopping all instruments, 4-4 Starting or stopping group instrument, 4-4 Static versus dynamic measurements, B-1 Status and error messages, J-2

Subnet mask and default gateway, reviewing and setting the, 2-38

System operation, 1-11

—T—

TCP/IP protocol stack, I-11 TCP/IP software

Banyan Vines, I-22 Microsoft LANManager, I-22 Novell NetWare, I-21

Windows for Workgroups, I-11, I-23 Windows NT, I-11

Windows95, I-11

Test

2-Wire resistance accuracy (2640A), 6-17

2-Wire resistance accuracy (2645A), 6-18

4-Wire resistance accuracy (2640A), 6-20

4-Wire resistance accuracy (2645A), 6-23

analog channel integrity, 6-15 computed channel integrity, 6-15 digital I/O output, 6-26

digital input, 6-27 digital input/output, 6-26frequency accuracy, 6-14 master alarm output, 6-29

open thermocouple response, 6-16performance, 6-6 thermocouple temperature accuracy, 6-16

totalizer, 6-28 totalizer count, 6-28 totalizer sensitivity, 6-28 trigger input, 6-30 trigger output, 6-30

Test setup

initializing the performance, 6-9 Test setup, configuring the, 6-6 Testing and troubleshooting, 2-55Testing the Installation, 2-55

Text file, saving an instrument configuration as, 3-28

Thermocouple temperature accuracy test, 6-16

Token ring networks, I-19 Totalizer, 1-9, 2-12

2640A/2645A, A-7 Totalizer count test, 6-28 Totalizer sensitivity test, 6-28 Totalizer tests, 6-28

Totalizer value, clearing instrument, 4-5 Trend Link

Displaying a Chart During Logging, 5-3 Exporting Data Files, 5-9

Importing Data Files, 5-6

Playing Back a Fast Binary File, 5-5 Playing Back a Trend Link file, 5-4 Playing Back an ASCII File, 5-6

7

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Fluke 2640A, 2645A user manual Index

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.