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.



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,

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

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.