Datasheet
4 Fluke Corporation 2638A Hydra Series III Data Acquisition System/Digital Multimeter
Real-time data charting
with historical review
Chart the real-time data of up
to four channels at once. Simply
select your channels and view real
time charts of your measurements.
The chart will auto scale for best
fit of the displayed values. Zoom
in or out to view areas of inter-
est with the push of a button. A
history mode enables you to scroll
through previously collected data
within the scan file—all with-
out a PC and expensive charting
programs.
Language support
All displayed text in the menus
and data display area are trans-
lated to eight languages. You can
change the language under the
instrument setup area with the
push of a button. French, Span-
ish, Japanese, German, Korean,
English, Portuguese, Chinese and
Russian are all supported lan-
guages in the 2638A.
Screen capture function
With one key push on the front
panel, you can capture the screen
contents of the 2638A directly to
the USB drive in .jpg file format.
Capture trend chart results or data
displays for reports or just closer
review.
Two alarms per channel
Each channel can be set for two
alarm points: High-High, High-Low
or Low-Low, in any combination.
The 2638A then compares the set
points during each scan. An out-
of-range value is reported on the
main display and data files. You
can also assign any alarm point to
any of six TTL alarm outputs.
Math channels
Each channel measurement can
be set to scale and record your
measurement using mx+b gain
and offset calculations that are
available during your channel
setup menu. In addition, each
2638A mainframe has 20 internal
math channels with alarm settings
for more complex calculations that
record results to your data file
during each scan. Each channel
result can be used as a variable in
another math channel calculation.
Real-time data charting with historical review.
DMM mode adds
functionality and value
The Hydra Series III is based on a
6.5 digit (22-bit) precision digital
multimeter measurement engine
with exceptional measurement
quality and resolution—so when
you are not using your Hydra to
collect multi-channel data, you
can use it as a precision digital
multimeter. Front-panel DMM-style
input jacks and dedicated DMM
menu selections enable you to
measure dc voltage, dc resistance,
ac voltage, ac resistance, Ohms,
frequency, and temperature (ther-
mocouples, RTDs and thermistors).
Record DMM measurements to a
separate DMM data file for later
viewing. The 2638A also displays
measurement statistics and graphs
measurements right on the main
display.
USB and internal memory
The Hydra Series III features
20mb on-board memory for stor-
ing over 75,000 data records and
configuration files. In addition to
this large on-board memory, a
built-in USB port is available to
collect and store large files directly
to a USB flash drive. An on-board
file management menu makes
moving data files or configuration
files from internal or USB memory
to your PC easy.
Dedicated DMM functions.