Portable dataloggers monitor analog I/O connections

 Units monitor analog I/O connections without interrupting the process loop. Avoid ground loops.

02/09/2009


ACR Systems’ SmartReader line of multichannel dataloggers addresses the need to monitor analog I/O connections without interrupting the process loop. When working with existing controls, the tendency is to place a 20 mA channel datalogger inline with the termination resistor. This can cause a ground loop when connecting to more than one channel if loops are not isolated.

ACR has posted an article on its Website that explains the advantages of using 2.5 V, 5 V, and 10 V channels. Dataloggers take a measurement at a predetermined interval and store the reading in the device’s internal memory for backup later. A single recorder running for 10 years on its own battery can store up to 1 million readings; information is then presented as a graph or exported with time and date stamp for further analysis.

A Control Engineering tutorial provides more help avoiding ground loops .

ACR Systems

Control Engineering News Desk
Register here to select your choice of eNewsletters free .





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