Product Data PROCESS GAUGES Designed for pressure measurements as low as a few inches of water, these gauges, in spans from 30" H2O to 10 psi utilize a unique sensing element. It is composed of a stack of diaphragm capsules, each consisting of two plates contoured into a convex/concave configuration to nest into one another. This results in a low internal volume element developing large forces to drive the mechanism in extremely low pressure ranges. The measuring element may be filled and attached to a Mansfield & Green diaphragm seal (Type L) to permit use of the gauge with corrosive or viscous fluids. Type ST diaphragm seals may also work on Model 1929. Please contact factory for further information. Calibration adjustments (scale shape and linearity) are made from rear of case without removing internals. The pointer is adjusted by removing the front ring and window. ACCURACY: ±1% of span (Grade 1A) DIAPHRAGM: 316L stainless steel, heli-arc welded WINDOW: High temperature acrylic; laminated shatter-resistant glass option available, part number G038312 MOVEMENT: Heavy brass U-frame construction with nickel silver rocker arm on stainless steel pivots. Brass sector and nickel silver pinion operate on brass bearings. Minimum and maximum stops prevent segment and pinion disengagement DIAL: Aluminum with white background and black markings POINTER: Knife-edged, micrometer adjustable, black finish For Stem or Wall Mounting: PET turret case (black) with glass-filled, threaded, polypropylene ring and plastic pressure-relieving back CONNECTION: 316L stainless steel; 1/2-14 ANPT standard (1/4-18 ANPT optional) On-line order fax: +1215-323-9450 or e-mail: [email protected] Sales/Technical Support: +1 215-293-4100 I 205 Keith Valley Road I Horsham PA 19044 U.S.A. © 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174) Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.

Product Data PROCESS GAUGES Spec Number Selection Chart * Metric and dual scale dials are available 1/4-18ANPTavailable - use 133XXX when ordering On-line order fax: +1215-323-9450 or e-mail: [email protected] Sales/Technical Support: +1 215-293-4100 I 205 Keith Valley Road I Horsham PA 19044 U.S.A. © 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174) Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.