Potter Electric Signal Co. has released the ADPS Adjustable Deadband Pressure Switch. The switch has independent set and reset points that are adjustable throughout the operating range of the switch, allowing it to comply with NFPA 20 fire pump controller codes. The ADPS utilizes a 15A SPDT mercury-free microswitch with a manual test actuator. The 300 psi model features a 12 psi minimum deadband, and the 600 psi model features a 25 psi minimum deadband. The ADPS enclosure carries a NEMA 4X rating, and wetted parts are available in brass or stainless steel.Potter Electric Signal Co. www.pottersignal.com
