The 2557 Alarm Limit Switch (ALS) is designed to mount directly to the 2500 Automatic Tank Gauge (ATG) or 6700 Liquid Level Indicator (LLI) and provide a contact closure or opening at a preset cam position to allow for alarm indications. The cam-operated switches can be used to activate alarms or relays at any level selected by the user.
The 2557 ALS is designed and manufactured to provide accurate and reliable operation without an intensive maintenance schedule.
Image shows a 2557 ALS connected to a 2500 ATG |
2557 ALS Links 
