Analog signal conditioners get strain-gage input modules

01/05/2006


Control Components

Measuring only 1.11 x 1.65 x 0.4 in. (28.1 x 41.9 x 10.2 mm), the 8B signal conditioner is 80% smaller than similar products, Dataforth says; signal filtering is accomplished with a 5-pole filter optimized for time and frequency response.

Dataforth Corp . adds 8B38 strain-gage input-modules with a choice of 3 Hz or 8 kHz signal bandwidth, to the SensorLex 8B family of isolated analog signal conditioners.
Modules provide excitation to strain element-based sensors, then isolate, filter, and amplify the resulting sensor output and provide high-level analog voltage output. Available models provide excitation voltage choices of 3.333 V or 10.000 V, allowing connection to sensors with nominal impedance from 100 ohm to 10 k ohm. Constant voltage sensor excitation is standard in 8B38 modules using a voltage source that is precisely regulated to minimize changes over time, temperature, and power supply voltage.

Applications include any process requiring precise measurement of strain or pressure; situations where space is at a premium; vibration analysis in machinery health and other high frequency monitoring applications, using the 8 kHz wide bandwidth option; monitoring slow varying processes, such as conveyor belt systems, and applications where rejection of high frequency noise is important, using the 3 Hz narrow bandwidth option. As 8B38 modules have a low drift over time and temperature, they do not add significant measurement error; additionally, 8B38 modules provide signal conditioning in what's said to be the smallest package. Signal gains of 167 V/V to 500 V/V are offered, allowing the modules to connect to industry standard sensors with output sensitivities of 2 mV/V and 3 mV/V. Other ranges are available. Operation and storage temperature range is -40 to 85 °C; relative humidity range is 0-95% noncondensing. All models meet EN61000-6-4 (radiated/conducted emissions) and EN61000-6-2 (ESD/RF/EFT immunity). For operation in hazardous environments, North American Class I, Division 2, and European Group II, Category 3, approvals are pending. Prices for 8B modules start at $89.

— Edited by Mark T. Hoske, editor-in-chief, Control Engineering ,
MHoske@cfemedia.com





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