View Series 17 Series 17 - Intrinsically Safe Control, FM Approved, SPST Isolated Contacts Series 17 intrinsically safe controls have SPST isolated contacts and are FM Approved for use in Class I or II, Division 1, Groups A through G hazardous locations. Sensitivity is field-selectable through the use of external resistors supplied with the control. View Series 27 Series 27 - Intrinsically Safe Control, UL Approved, SPDT Contacts Series 27 intrinsically safe controls have SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D; Class II, Groups E, F & G; and Class III hazardous locations. Control sensitivity is factory-set. View Series 47 Series 47 - Intrinsically Safe Alarm Panel Control, 4-Channel Series 47 intrinsically safe controls offer complete alarm panel control in a single package. Powered output contacts allow quick connection of lights and audible alarms. Test and silence functions are built in. Unit also carries one SPDT master alarm contact for remote alarm activation. Approved for Class I, II, III, Division 1, Groups C, D, E, F, G hazardous atmospheres, Series 47 controls supply four channels which can be used with conductivity-based liquid level sensors or dry contact sensors. This device functions as an alarm or single point control. Field adjustable for direct or inverse operation, it can operate separate visual alarms with a common audible alarm channel. Silence and test terminals are standard. For additional lights, alarms or outputs, auxiliary contacts must be ordered. View Series 67 Series 67 - Intrinsically Safe, Multi-Function, Duplex Pump System Control Series 67 four channel level controls are an ideal solution for liquid level problems in hazardous locations for the sewage, waste water, chemical and groundwater remediation industries. Connected to floats or conductance probes this versatile control provides simplex or duplex pump/solenoid valve control; automatic or manual alternation; high and/or low level alarms with silence/ acknowledge capabilities. Series 67 controls can be used in hazardous applications as an intrinsically safe interface to non-powered contacts and sensors such as push button operators, limit, temperature, pressure and vacuum switches. Its low cost, integrated features and compact size also make it ideal for non-hazardous applications.