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Series 5200 Solid-Sate relays are designed for controlling a wide variety of high and low resistance liquids, moist bulk materials, and general purpose use in applications requiring a low voltage control circuit.  Supplied as compact package units, they combine performance-proven solid-state printed circuitry with an electromechanical load relay that features isolated double pole / double throw contacts for energizing pump motors, valves and other operating equipment.  Equipped with silicon controlled rectifiers, the 5200 Series Relay assures years of service without change in operating characteristics. The Relay will operate with less than a 10% difference between pull-in and drop-out resistance and can be mounted in any position. Units are field selectable for either DIRECT or INVERSE operation.

Series 5200 Solid-State Relays are available in two sensitivity ranges, LOW and HIGH.

LOW SENSITIVITY:

This relay is designed for the control or detection of electrically conductive liquids with low to medium specific resistance.  Typical liquids are potable and waste water, most acids, plating solutions, fruit juices, soup, beer, milk, and soft drinks. With a low voltage AC electrode potential, this relay operates with no shock or sparking hazard. It is ideal for food, drug, dairy, and chemical processing applications.

HIGH SENSITIVITY:

This relay is recommended for the control or detection of electrically conductive liquids with medium to high specific resistance. Typical liquids are distilled and de-ionized water steam condensate, alcohol, glycols and anhydrous ammonia. It is also suitable for detecting or controlling ore, foundry sand and other bulk materials with low moisture content. With a low voltage DC electrode potential and no existing shock hazard in the electrode circuit, this relay is an excellent choice for use in applications where the relay must be located many thousands of feet away from the electrodes.

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