Friday 17 September 2010

Circuit card electro-pneumatic servo pressure regulators for OEMs

The Precision Controls Division (PCD) of Marsh Bellofram Corporation, a member of the Marsh Bellofram Group of Companies, has announced the global market introduction of Type 3110 and Type 3120, a series of single- (3110) and double-loop (3120) electro-pneumatic analog circuit-card servo pressure transducers, designed to provide compact, high-performance, economical air pressure monitoring capabilities within a variety of OEM applications.

Occupying an overall footprint of just 2 inches x 2.8 inches (50.8 mm x 71.12 mm) and with available analog monitor output ranges from 29” Hg to 600 psig, Marsh Bellofram Types 3110 and 3120 offer user selectable, configurable (zero and span) industry standard 0-10 VDC or 4-20 mA control signals, with custom signal outputs available upon request. Industry-standard analog monitor output signals (0-10 V or 4-20 mA optional) are available for user monitoring of actual output pressure. Industry-standard logic output signals (high or low) are also available for user monitoring of set point status – either ‘at set point’ or ‘still searching’.

Two manifold block configurations are available, one with front ports, to facilitate direct panel mounting or seamless insertion into a DIN-rail adapter tray; and the second with bottom ports, facilitating use within multi-unit manifold system applications. An onboard pressure transducer within the manifold block permits ±0.5% full scale accuracy. Custom multi-unit manifolds are also available upon request. Marsh Bellofram Types 3110 and 3120 are perfect for size-conscious OEMs looking for air pressure monitoring without sacrificing any of the high-end capabilities normally associated with full-size I/Ps.

Typical applications include damper control; gas chromatography; process control; and medical equipment, such as ventilators and blood analyzers

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