Information

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2638A Hydra Series III
Data Acquisition System
Industrial grade, precision data acquisition
The 2638A is expandable from
22 to 66 channels of differential
analog inputs. A flexible, 22-channel
Universal Input Connector lets you
connect and disconnect any type of
input to any channel, quickly and
easily. Selectable inputs include dc
voltage, ac voltage, resistance, ther-
mocouple, RTD, thermistor, frequency
and dc and ac current. You can also
use the 2638A with FlukeDAQ soft-
ware and other Fluke data loggers
to create a flexible, customized data
acquisition system with an almost
unlimited number of channels.
DC measurement accuracy of
0.0024%, basic 0.5 °C thermo-
couple accuracy, full-color display,
easy-to-use menu system and
international Category II safety
ratings put the 2638A in a category
of its own as a truly industrial
grade, precision data acquisition
system. The dedicated 6.5 digit
digital multimeter (DMM) mode
adds additional utility and value.
The Fluke 2638A
Hydra Series III:
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
• Multi-channel real-time data
display
• Input types: ac V, dc V, ac I, dc
I, thermocouple, PRT (2, 3, 4 w),
thermistor, resistance (2-4 w),
frequency
• 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
• 46 channels/second basic dc
scan rate
• Internal 75,000 scan/setup file
memory
• USB flash drive support
• Data security features
• CAT II 300 V input safety rated