The SY042 is designed to limit the maximum current in a 0-20mA or 4-20mA loop. The SY042 is powered by the current loop, so installation couldn't be simpler. The current limit is factory preset to 24mA, but fine adjustment with a multi turn potentiometer for each channel, is accessible by flipping off the side cover with the connections label. By connecting loop voltage+ to a limiter input and a current meter between the output and loop voltage-, you can trim the current limit between 13mA – 24mA.
The unit can be supplied with 1, 2, 3 or 4 limiters fitted.
Designed and manufactured in our UK factory by Synectic Design Ltd
|SY042 Datasheet (Jan 2015)||199.8KB||Download|