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Fluke 2686A, 2680A manual Getting Started, Introduction

Models: 2686A 2680A

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Getting Started

Introduction

The 2680A Data Acquisition System (DAS) and 2686A Data Logging System (DLS) provide 20 to 120 channels that operate in conjunction with Fluke DAQ software to form a data acquisition system.

The 2686A comes with a removable PC Card (PCMCIA) for stand-alone storage operation. This socket accepts ATA memory cards up to 2 GB in size.

Each 268XA device can hold from 1 to 6 analog modules. These modules are the precision analog module (PAI), fast analog module (FAI), and the digital IO/relay and Totalizer module (DIO). These modules are all isolated from one another. If digital I/O, relay and totalizer capability is required, you can add a digital I/O module to the device in slot 6 only.

The analog modules measure dc volts, ac volts, ohms, temperature, frequency, and dc current. Temperature measurements use thermocouples thermistors or resistance temperature detectors (RTDs). The devices also have extensive computed math capability. Besides using data collected from the analog modules, and digital totalizer, time can also be used in computed channel calculations.

The systems scan the 20 to 120 analog channels and calculate the values for the 60 computed channels. Interval timers, alarm conditions, and/or an external signal input can trigger scans. The Fluke DAQ software configures and controls up to 99 268XA devices via an Ethernet connection. The software provides the means to view scan data and log it into files.

The two analog modules that may be used with the 268XA are the FAI module and the PAI module. The PAI modules emphasize precision with 5 ½ digits of resolution, .02% accuracy, and can withstand up to 150 V common mode voltage (300 V on channels 1 and 11). The FAI modules emphasize increased measurement speed with 4 ½ digits of resolution, 0.04% accuracy, and can withstand up to 50 V common mode voltage.

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Fluke 2686A, 2680A manual Getting Started, Introduction
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2686A, 2680A specifications

The Fluke 2680A and 2686A are sophisticated data acquisition systems designed for versatile applications in electrical and environmental testing. These high-performance devices cater to engineers and technicians who require reliable and precise measurement capabilities.

At the heart of these instruments is their advanced modular design, which allows users to customize the system according to specific measurement needs. The Fluke 2680A offers eight channels, while the 2686A boasts an impressive 20 channels of data acquisition, thus providing flexibility for various testing scenarios. This modularity ensures that users can easily expand their measurement capabilities by adding more channels or switching between different measurement modules.

One of the standout features of the Fluke 2680A and 2686A is their ability to perform simultaneous measurements across multiple channels. This is particularly beneficial for applications that require real-time data analysis, minimizing the time spent on sequential measurements. With sample rates reaching up to 100 kS/s, these devices provide quick and accurate data collection, making them ideal for both laboratory settings and field use.

Both models incorporate advanced signal conditioning technology, enabling them to handle a wide range of input types, including voltage, current, temperature, and resistance. This capability eliminates the need for external signal conditioning equipment, streamlining the setup and reducing overall costs for users. The inclusion of built-in digital filtering and scaling further enhances measurement accuracy, ensuring reliable results even in noisy environments.

The Fluke 2680A and 2686A also feature robust connectivity options, including USB, Ethernet, and RS-232 interfaces. This promotes seamless integration into existing networks and facilitates remote monitoring and control. Additionally, both devices support various programming languages, allowing for easy automation of testing procedures.

Another highlight is the intuitive user interface that allows users to configure the device with minimal effort. An embedded web server provides remote access to the instrument, enabling users to monitor data and configure settings from anywhere.

In summary, the Fluke 2680A and 2686A stand out as premier data acquisition systems, offering exceptional modularity, versatile measurement capabilities, and advanced connectivity options. Their combination of speed, accuracy, and ease of use makes them indispensable tools for professionals in testing and measurement applications.