MARLBORO, MA – November 18, 2009 – Data Translation today announced the DT8837 high performance Ethernet (LXI) data acquisition instrument module for sound and vibration measurement applications. The DT8837 allows the user to sample up to four 24-bit IEPE accelerometer input channels independently at up to 52.7kHz per channel or 210kHz 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 the user high sampling throughput but previously unachievable accuracy with on-board proprietary ISO-Channel™ front end design.” according to Fred Molinari, Founder, and President. “This innovative design is of great significance to Ethernet users in tough environments, through the total elimination of 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.
ISO-Channel™ technology utilizes galvanic isolation methods to guarantee 1000V isolation between any input channel to any other input channel and ±500V to earth ground. ISO-Channel vastly increases reliability by implementing unique isolation mechanisms for each 24-bit A/D converter per channel for each of the four input channels and on the 24-bit stimulus D/A output channel, all operating in parallel. The benefit to the user is total isolation of all input/outputs from 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 Design Features of the DT8837:
• Simultaneous sampling of inputs at throughput rates up to 52.7kHz per channel or 210kHz 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 +/-10V 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 1000V galvanic isolation channel to channel.
• Full Tachometer control for rotating machinery applications
• Shielded, rugged enclosure for noise immunity, 1U, ½ rack small profile
• Includes comprehensive software CD for making measurements quickly and easily.
Software Support
The DT8837 ships with free software allowing users to configure the DT8837 instrument module for sample rate, trigger source, IEPE settings; acquire and display data for the analog input channels, and log data to standard file formats for later analysis or viewing; perform FFTs and other vibration data analysis.
Pricing and Availability
The DT8837 is priced at $3995 and ships 6-8 weeks ARO.
About The Company
Data Translation Inc. www.datatranslation.com is a leading designer, manufacturer, and provider of USB data acquisition (DAQ) modules, USB and Ethernet (LXI) measurement instrumentation, and software solutions for the test and measurement market.
