Fluke 2638A Hydra Series III Data Acquisition System/Digital Multimeter *Used*

$1920.00 or Best Offer

Key features

  • DC accuracy of 0.0024%
  • Thermocouple accuracy of 0.5°C
  • Up to 66 universal differential isolated inputs
  • On-screen color trend graphing of up to four channels at a time
  • Easy-to-use menu system for setup and data management
  • Input types: AC V, DC V, AC I, DC I, thermocouple, PRT (2, 3, 4 w), thermistor, resistance (2-4 w), frequency
  • Multi-channel real-time data display
  • 6.5-digit bench DMM function for front-panel inputs
  • Monitor function for real-time viewing and charting between scans
  • 20 on-board math channels
  • One-button screen capture of chart or data displays
  • 45 channels/second basic DC scan rate
  • Internal 57,000 scan/setup file memory
  • USB flash drive support
  • Data security features
  • 300 V CAT II input safety rated


Product Overview: Fluke 2638A Hydra Series III Data Acquisition System/Digital Multimeter

The Fluke 2638A Hydra Series III is an advanced data acquisition system and digital multimeter designed for precise industrial thermocouple measurements. Featuring the Fluke patented Universal Input Connector, it supports 14 common thermocouple types, enhancing measurement accuracy and making it ideal for temperature validation applications.

Key Features:

  • Accurate Thermocouple Measurements: With support for 14 thermocouple types and a temperature-focused menu, the 2638A excels in temperature validation tasks.
  • Universal Input Connector: This connector supports 22 input channels, including 20 universal inputs and 2 low-burden input current channels. It features a CJC device for calibrated, traceable measurements.
  • Expandable Channel Capacity: The system can expand from 22 to 66 channels with user-accessible relay cards.
  • Graphical Color Display: The large TFD display simplifies data visualization and menu navigation.
  • Data Storage and Management: Features 20 MB onboard memory and USB port for data transfer. The data key stores up to 127 test results, ensuring traceability and compliance.
  • Real-Time Data Charting: Allows real-time charting of up to four channels with historical data review capabilities.
  • Flexible Triggers and Resolution: Offers multiple scan initiation options and adjustable measurement resolution for tailored accuracy.
  • Math Channels and Alarms: Each measurement can be scaled and recorded with mx+b calculations, and channels can be set for two alarm points each.


  • Temperature Validation
  • Chamber Tests
  • Heat Treating Tests (AMS Guidelines)
  • Regulated Industry Compliance (21 CFR Regulations)


  • Ease of Use: Simplifies setup with a user-friendly interface and quick-connect Universal Input Connectors.
  • Flexibility: Easily adapt to different test setups and expand channel capacity as needed.
  • Reliability: Ensures accurate and stable measurements even in high-interference environments.

This versatile and expandable system is ideal for industries requiring precise and reliable data acquisition and temperature validation.




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