Portable USB-Based DAQ
for High Voltages
NI USB-9221
NEW!
• Small, portable device
(12.1 by 8.6 by 2.5 cm)
• 8 analog inputs at 12-bit resolution
• ±60 V input range
• 800 kS/s aggregate sampling rate
• Built-in, removable connectors
for easier and more cost-
effective connectivity
• 250 V
rms
channel-to-earth
ground isolation
• Plug-and-play connectivity
via USB
• Bus-powered
Operating Systems
• Windows 2000/XP
Recommended Software
• LabVIEW
• LabWindows/CVI
• Measurement Studio
Measurement Services
Software (included)
• NI-DAQmx driver software
• VI Logger Lite data-logging
software
Product
USB-9221
1
For
Signal Type
Voltage
Channels (SE)
8
Input Resolution (bits)
12
Maximum Sampling Rate
(kS/s)
800
Input Range (V)
±60
Connector
Screw Terminal, D-Sub
Driver Software
1
NI-DAQmx
up-to-date information on NI-DAQ, visit
ni.com/support/daq/versions.htm.
Table 1. Portable USB DAQ for High Voltages Selection Guide
Hardware Description
National Instruments USB-9221 is a data acquisition module with
integrated signal conditioning that provides plug-and-play
connectivity via USB for faster setup and measurements. This
module has eight single-ended analog input channels with an
extended input range of ±60 V for direct connection to industrial
sensors. With a maximum single-channel sampling rate of 800 kS/s,
the NI USB-9221 is the fastest device in the USB DAQ with
signal conditioning family. In addition, this module includes
channel-to-earth ground isolation for safety, noise immunity and
high common-mode voltage range. With both screw-terminal and
standard D-Sub connector options for this module, you can obtain
flexible and low-cost signal wiring.
Common Applications
The USB-9221 is ideal for high-voltage applications where small size
and portability are essential, such as:
• Portable data logging – log voltage data quickly and easily
• Academic lab use – obtain academic discounts for quantities
of five or more. Visit
ni.com/academic
for details.
• Industrial testing – take measurements of high-voltage
transformers, batteries, and other electronics
• Embedded OEM applications
• In-vehicle data acquisition
Information for OEM Customers
For information on special configurations and pricing, please
visit
ni.com/oem
.
Software Description
The USB-9221 uses NI-DAQmx high-performance, multithreaded
driver software for interactive configuration and data acquisition on
Windows OSs. Use NI-DAQmx to test channels, generate code, and
apply custom scaling to any of your measurements. All NI data
acquisition devices shipped with NI-DAQmx also include VI Logger
Lite configuration-based data-logging software.
Ordering Information
NI USB-9221
Screw Terminals ........................................................779439-01
D-Sub Connector......................................................779440-01
Accessories
NI 9934 ......................................................................779104-01
Recommended Accessories
The USB-9221 has built-in screw terminals or a D-Sub connector
option that connects to the NI 9934 strain relief accessory, or any
other standard 25-pin D-Sub connector.
BUY NOW!
For complete product specifications, pricing, and accessory
information, call (800) 813 3693 (U.S. only) or go to
ni.com/oem
.
NI [ NATIONAL INSTRUMENTS CORPORATION ]
