When these units are used in high-noise electrical systems, connection of a varistor (General Electrical G-MOV or equivalent diode) across terminals 3 and 4 is recommended. Consult factory for recommended varistor protection.
Connecting to Programmable Controllers
Programmable SAFE-PAK®, P/N 54825, providing simple on-off functions for hazardous location, and interfacing with TTl or AC logic input of programmable controller.
* Temperature, pressure, position, flow, or level.
Installation and maintenance must be in accordance with the National Electrical Code and the applicable Gems™ Instruction, Installation, and Service Bulletin available at www.gemssensors.com