Single Stage displacer switches utilize one electrical control mechanism and are factory calibrated.
Series A10 are wide differential units calibrated to actuate as a liquid level reaches a given displacer and to de-actuate when the level reaches a second displacer.
The minimum differential band is approximately 6 inches (152 mm) in water and varies somewhat with liquid specific gravity. The maximum differential is determined by the length of the displacer suspension cable.
Series A15 are calibrated to operate over a narrow level differential band and are ideally suited for liquid level alarm applications on either high or low level.
The operating level is fully adjustable simply by repositioning the displacer along its suspension cable. The differential band varies slightly with liquid specific gravity.
Dual Stage displacer switches utilize two electrically separate control mechanisms and are factory calibrated.
Series B10 are wide differential tandem units are factory calibrated with a choice of several operating sequences designed to meet virtually any application.
Series B15 are narrow differential tandem units with each switch actuating at a different level
Triple Stage displacer switches are designed to provide three electrically separate control signals in a selected sequence in response to liquid level changes.
Series C10 are wide differential units with a choice of several operating sequences combining wide and narrow level differential and are factory calibrated.
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