Ethernet vibration instrument module can sample four accelerometer channels

Data acquisition instrument from Data Translation simplifies sound and vibration applications in remote or difficult applications.

11/20/2009


DT8837

Data Translation DT8837 sound and vibration module


Data Translation has released its DT8837 high performance Ethernet (LXI) data acquisition instrument module for sound and vibration measurement applications. The unit allows you to sample up to four 24-bit IEPE accelerometer input channels independently at up to 52.7 kHz per channel or 210 kHz total throughput. Additionally, the DT8837 offers a 24-bit stimulus output, and a 31-bit synchronized tachometer channel for data streams that are matched in time for field or laboratory use.

"The DT8837 data acquisition instrument module not only offers high sampling throughput but previously unachievable accuracy with on-board proprietary ISO-Channel front end design," says Fred Molinari, Data Translation president. He adds that the design helps Ethernet users by eliminating ground loops and noise sources.

The TCP/IP Ethernet operation mode of the DT8837 allows measurements to be monitored locally or at other remote locations. Up to 16 instrument modules may be stacked for parallel operation of 64 separate IEPE accelerometer or voltage inputs. Each of these separate synchronized modules can also be triggered externally in a variety of ways.

The company says its ISO-Channel technology provides galvanic isolation to guarantee 1,000 V isolation between any input channel to any other input channel andfrom each other and from digital ground. Additionally, for operating mechanical relays or motors that are common to vibration systems, 4 isolated digital output lines employ solid state relays with high drive capability.

Key features include:

• Simultaneous sampling of inputs at throughput rates up to 52.7 kHz per channel or 210 kHz total throughput across 4 IEPE channels;
• High 24-bit resolution analog input subsystem with direct IEPE signal conditioning;
• Optional AC/DC signal sampling ranges of +/-10 V with gains of 1 and 10;
• Ethernet (LXI Class C compliant) connection with wired trigger bus for synchronized expansion up to 64 IEPE channels;
• Complete ISO-Channel signal integrity with 1000 V galvanic isolation channel to channel;
• Full tachometer control for rotating machinery applications; and
• Shielded, rugged enclosure for noise immunity, 1U,

Software is included to configure the device, acquire and display data for the analog input channels, and log data to standard file formats for later analysis or viewing.

-Edited by Peter Welander, process industries editor, PWelander@cfemedia.com

Control Engineering Process Instrumentation & Sensors Monthly eNewsletter
Register here to select your choice of free eNewsletters.





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Big Data and IIoT value; Monitoring Big Data; Robotics safety standards and programming; Learning about PID
Motor specification guidelines; Understanding multivariable control; Improving a safety instrumented system; 2017 Engineers' Choice Award Winners
Selecting the best controller from several viewpoints; System integrator advice for the IIoT; TSN and real-time Ethernet; Questions to ask when selecting a VFD; Action items for an aging PLC/DCS
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Motion control advances and solutions can help with machine control, automated control on assembly lines, integration of robotics and automation, and machine safety.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
click me