Portable dataloggers monitor analog I/O connections

ACR系统的多通道语音朗读行数据loggers 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.

AControl Engineeringtutorial provides more help avoiding ground loops .

ACR Systems

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

Do you have experience and expertise with the topics mentioned in this content? You should consider contributing to our CFE Media editorial team and getting the recognition you and your company deserve. Clickhereto start this process.