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Test Gauge© Pressure Gauge Type 1082, Grade 3A (±0.25% of span)

Temperature-compensated movement that significantly reduces temperature error MicroSpan™ adjustment for ease in span calibration Hydraulically staked movement with Teflon-coated gears and bearings improves stability Externally adjustable dial on standard model White aluminum dial, black numbers with polished mirror band High and low pressure movement stops are standard

The standard Ashcroft© test gauge case style features a solid-front aluminum case with a hinged ring. The dial has a polished mirror band for pointer reflection to prevent parallax error and is available in 41.2½, 6½ and 81.2½ dial sizes in both lower and back connection. Pointer is a balanced-friction adjustable design with red knife edge tip for easy reading. The standard test gauge is competitively priced and available from stock for most ranges, tube materials and case sizes. Click here for Bourdon System Selection Click here to create part number

OPTIONAL CASE TYPES
Case Type XAZ	Case Type XAY	Case Type XTY	Case Type XQY
4½ solid-front aluminum, black-epoxy finish, threaded aluminum ring, lower and back connection	4½ & 6 solid-front aluminum, black-epoxy finish, black polypropylene ring. Stem, surface or flush mount, lower or back connection	4½ solid-front black phenolic, black polypropylene ring. Stem, surface or flush mount, lower or back connection	6½ solid-front black, glass reinforced polypropylene, black polypropylene ring, Stem, surface or flush mount, lower or back connection

BOURDON SYSTEM SELECTION
Ordering Code	Burdon Tube & Tip material(1) (all joints TIG welded except "A")	Socket Material	Tube Type	Range Selection Limits	NPT Conn.(2)
A	Grade A Phosphor Bronze Tube-Brass Tip, Silver Brazed	Brass	C-Tube	vac/400psi	½
P	K Monel	Monel 400	C-Tube	vac/1500psi	½
			Helical	2000/10000psi	½

For selection of the correct bourdon system material, see the media application table

 

PART NUMBER FOR A TEST GAUGE:
Select:	45	1082	PS*	02L	XXX	0/2000 psi
	Dial Size - 4½"	Case Type - 1082	Bourdon system selection ordering code	Connection ¼NPT (02), ½NPT (04), Lower (L), Back (B)	Optional Features Click here for common Options	Standard Pressure Range Click here for common Pressure Ranges
* "S" denotes solid front case design

 

WARNING: Pressure gauges should be selected by considering media and ambient operating conditions to prevent misapplication. Improper application can be detrimental to the gauge, causing failure and possible personal injury or property damage. The information contained in this catalog is offers as a guide to assist in making the proper selection of a pressure gauge. Additional information is available from PSI. Pressure Ranges: Select a gauge with a full-scale pressure range of approximately twice the normal operating pressure. The maximum operating pressure should not exceed 75% of the full-scale range. Failure to select a gauge within these criteria may ultimately result in fatigue failure of the bourdon tube. Operating Conditions: The temperature level to which a gauge will be subjected must be considered. Accuracy will be affected approximately 1.5% per 100°F. Gauges with welded joints will withstand 750°F, with silver brazed joints, 450°F, and soft-soldered joints, 150°F for short times without rupture, although other parts of the gauge may be destroyed and calibration lost.

Cases: Many styles and different materials are offered. Two types are available: open and solid front. Solid front cases have a solid wall between the bourdon tube and the window. Open front cases have the dial between the bourdon tube and the window. Rings: The ring, which retains the window, is threaded, bayonet (cam), friction, snap-on or hinged, depending upon case type. Pressure Elements: Available in a wide variety of materials, including: brass, phosphor bronze, alloy steel, 316 stainless steel, Monel and Inconel. Proper selection of the bourdon system or bellows material depends upon the process fluid to which the system will be subjected. If the correct material is not available, the use of a diaphragm seal may be necessary to protect the system from the process fluid. If the gauge is subject to severe vibration or pressure pulsation, a liquid filled gauge is recommended. Movements: Movements are designed and materials of construction selected to reduce friction and extend wear life. For example, Commercial Gauges have a unique spring-suspended

brass movement with polyester segment, whereas the Duragauge® gauge stainless steel movement is a rotary geared design with Teflon-coated wear parts. Other movements are stainless steel with bronze pinion and segment or bronze bushed. Dials: Dials are uniformly graduated and have highly legible black markings. White coated or brushed aluminum backgrounds are available. Windows: The standard is glass or plastic depending on the type of the gauge. Options are: laminated safety glass, nonglare glass, or plastic, depending on the type of gauge. Pointers: Duragauge pressure gauges have micrometer adjustable pointers which can be repositioned without removal. Type 1009 gauges have adjustable pointers. Many other gauges are supplied with nonadjustable pointers which can be reset by removing the ring, and removing and resetting the pointer. Adjustable pointers are available as an option on these gauges.