2680A Fluke Data Acquisition System

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

Each 2680A 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 2680A are the FAI module and the PAI module. The PAI modules emphasize precision with 5.5 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 4.5 digits of resolution, 0.04% accuracy, and can withstand up to 50 V common mode voltage.