Information
6
Ordering
information
2638A/60
Data Acquisition Unit/DMM: 60 universal
channels (includes 3 relay boards,
2638A-RLY and 3 2638A-100 connectors
2638A/40
Data Acquisition Unit/DMM: 40 universal
channels (includes 2 relay boards,
2638A-RLY and two 2638A-100
connectors
2638A/20
Data Acquisition Unit/DMM: 20 universal
channels (includes one relay board,
2638A-RLY and one 2638A-100
connector
Power selection: Specify 100 V, 120V,
220 V, 240 V power when ordering
(power setting may be changed by the
end user)
Each 2638A is shipped with the relay
boards and Universal Input Connectors
installed, one DMM style test lead set,
product manual, safety information and
warranty registration on CD, power
cord, screwdriver, a traceable calibration
report with data, and 2680A-APSW/L
Fluke DAQ Lite Software.
Options and accessories
2638A-20chkit
20-channel Expansion Kit for 2638A:
(includes one relay board 2638A-RLY
and 2638A-100 connector)
2638A-100
Extra Universal Input Module for 2638A
2638A-RLY
Extra Relay Board for 2638A
(Replacement)
Y2638
19-inch Rackmount, Single/Dual
Mounting
2638A-101
10 ohm Shunt Resistors (quantity
10 each) 100 mA max, 0.08 %
2638A-1GB
1 GB USB Flash memory drive
2638A/CASE
2638A Transit Case
Accredited Calibration Certificate
17025: add option/C to model
Software
2680A-APSW/LU
Upgrade from Lite version to full version
of Fluke DAQ Software, 2680A-APSW
2680A-904
Trend Link for Fluke Data Acquisition
Products (requires 2680A-APSW)
On-board math
channels
The 2638A has 20 on-board math
channels with two alarms per
channel to allow you to perform
conversions and other calculations
as your data is scanned. All channel
results are stored in the data file
for later analysis plus you have the
ability to set alarms on the calcu-
lated results of a math channel.
Math functions available:
• Square root
• Polynomial (6th order)
• Exponent
• Absolute value
• Reciprocal
• Multiply/Divide
• Add/Subtract
• Average (up to 10 channels)
• Minimum (up to 10 channels)
• Maximum (up to 10 channels)
• Log 10
• Natural Log
Graphical color display
with easy-to-use menus
Never get lost again in a complex
menu tree while configuring chan-
nels or setting up a test. The large,
full color, thin film diode (TFD)
display enables the Hydra SeriesIII
to display comprehensive easy-to-
understand data and easy menu
navigation. Back-lighted function
keys quickly confirm the active menu
selection. The “Record” key illumi-
nates to indicate when the 2638A
is recording data in scan, monitor or
DMM mode. You always have visible
confirmation when your data is being
recorded.
Copy-and-paste channel functions
make repetitive channel setups a
simple task. Top-of-screen menu bar
headings always let you know where
you are in the setup process.
View your data with the push of a
button. Page through all channel data
and alarms in a quick view mode or
scroll through channels and channel
statistics individually. Statistics
include rate of change, min, max,
standard deviation, average, sample
size and peak-to-peak information.
Language support
All displayed text in the menus and
data display area are translated to
eight languages. You can change
the language under the instrument
setup area with the push of a button.
French, Spanish, Japanese, German,
Korean, English, Portuguese, Chinese
and Russian are all supported
languages in the 2638A.
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 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 (thermocouples,
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.