Cal L. Bryant - Bartlett IL David W. Vrona - Glen Ellyn IL Dennis E. Francoeur - Glendale Heights IL Paul G. Janitch - Lombard IL
Assignee:
Magnetrol International Incorporated - Downers Grove IL
International Classification:
H01H 904
US Classification:
200 84C
Abstract:
A process instrument enclosed in a hermetically sealed housing for indicating and controlling a measured variable, such as the level in a tank. The instrument includes magnetically operated electrical switches actuable between open and closed positions in response to the measured variable. The electrical switches used are capable of switching current levels on the order of 10 Amps.