Invensys P91T overview
Foxboro P91T Series Pneumatic Position Transmitters The position transmitter produces a definite output air pressure for each position of its actuating lever. T...
Product details
Manufactured byInvensys
Product groupPneumatic Position Transmitters
DescriptionFoxboro P91T Series Pneumatic Position Transmitters
IntroductionThe position transmitter produces a definite output air pressure for each position of its actuating lever. The actuating lever may be connected to a moving mechanism either directly or through a suitable linkage. A 20 to 100 kPa or 3 to 15 psi output can be obtained for any span of rotational motion from a minimum of 5° to a maximum of 30°. By repositioning the actuating lever on the transmitter input shaft, this span of rotational motion may be shifted anywhere in a plane perpendicular to the input shaft. Lever travel is restricted by a stop pin at the end of the input shaft.
Operating AdjustmentsAll adjustments are readily accessible from the front of the transmitter. Factory alignment of the flappernozzle system simplifies field calibration.
Precise, Sensitive, and AccurateThe transmitter has a fast response and is simple to adjust. There are a minimum number of moving parts, which are of stainless steel, beryllium copper, bronze, or nylon.
Light and CompactThe durable, lightweight, die-cast aluminum case is designed for field use and is readily adapted for mounting on other equipment. Bleed air from the mechanism purges the case and, together with the gasketed cover, inhibits ingress of vapor and dust.
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Pneumatic Position Transmitters
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