403D

403D

The 403D Liquid Level Controller provides central control of duplex pumping systems. The Model 403D includes pump alternating, visual run-time meters, hand-off-auto control and alarm outputs. Four level-sense inputs interface with float switches, pressure switches, or other level sensing devices which can provide a contact closure.

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Description

Dual run-time meters

Selectable lead-lag or automatic alternation

Four sensing levels

Alarm Outputs

Hand-off-auto controls

The Model 403D Liquid Level Controller provides central control of duplex pumping systems. It includes pump alternating, individual run-time meters, hand-off-auto controls and alarm outputs.

Four level-sense inputs interface with float switches, pressure switches, or other level sensing devices which
can provide a contact closure.

A SPST, normally-closed internal power-fail contact opens when AC power 120VAC is connected to the controller, and closes if power is lost or removed. Connections for external remote alarm contacts, which must remain closed for normal operation (or jumpered if not required), are supplied for each pump.