The Fluke 2680A is a modular, scalable data acquisition platform engineered for precision multi-channel measurement in industrial and laboratory settings. It expands from 20 channels per chassis to over 2,000 channels through modular expansion, with universal input conditioning supporting Vdc, Vac, Ohms, frequency, RTD, thermocouple, thermistor, and AC/DC current on any channel in any combination. The system integrates into LANs via 10BaseT/100BaseT Ethernet and operates with Fluke DAQ software for configuration, control, and data logging.
– Technical Specifications
Capacity and Scalability
• 20 to 120 universal analog input channels per chassis
• Scalable to over 2,000 channels through multiple chassis and modules
• Six module slots per chassis: five for 20-channel analog input modules, one for Digital I/O or additional analog input capability
Fast Analog Input Module (2680A-FAI)
• Throughput exceeding 3,000 channels per second
• 16- to 18-bit resolution
• Input range to +50 V
• Channel-to-channel isolation exceeding 15 V
• Scan rate up to 1,000 readings per second per module
Precision Analog Input Module (2680A-PAI)
• 18-bit resolution
• Up to 300 V input isolation on two channels; 150 V on 18 channels
• 1600 V transient overvoltage protection
• Scan rate of 140 channels per second
• Supports J, K, R, S, T, N, I, U, C, and B thermocouple types
Digital I/O and Relay Output Module (2680A-DIO)
• 20 digital I/O channels
• Eight form C relay outputs rated 1 A at 250 V ac CAT I
• Digital inputs/outputs: 1.4 V threshold, 500 mV hysteresis, +30 V maximum, −4 V minimum (non-isolated)
• Up/down counter with preset start count capability
Data Processing
• Up to 60 computed channels with math functions (addition, subtraction, multiplication, division, log, natural log, exponent, square root, absolute value, integer, average, time, and rate)
• ATA flash memory card support from 16 MB
– Key Features
• Universal input conditioning on any channel, any combination
• High-speed throughput (3,000+ channels/second) and precision isolation options
• Form C relays for direct equipment control
• Transient overvoltage protection to 1600 V
– Typical Applications
Multi-point temperature and voltage monitoring; automated test systems; distributed data collection in networked facilities; thermocouple and RTD measurement at scale.
– Compatibility & Integration
10BaseT/100BaseT Ethernet connectivity; Fluke DAQ software configuration and logging.
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