47D1A3A1 - 

Series 47 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 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.

Features

Solid State Reliability

0-50K Ohm/cm Sensitivity

Alarm Contacts for Audible and Visual Alarms

4 Channel Relay

Removable Terminal Strips

Inverse or Direct Acting Field Selectable

U.L. Recognized