Ashcroft A4A Precision Pressure Gauge

SKU
A4A
Manufacturer:
Ashcroft
Ashcroft

Key Features:

  • ±0.1% F.S. accuracy - ASME B40.1 Grade 4A
  • Ranges from 15-100,000 psi
  • Solid front protective case
  • High and low pressure limit stops
  • Mirror band dial to eliminate parallax reading error
  • Optional temperature compensation maintains 0.1% accuracy from -25 to +125°F
Product Options:
$2,071.88

Secured and trusted checkout with

The Ashcroft precision pressure gauge yields consistent, reliable accuracy through the use of state-of-the-art precision machining and the world’s most refined bourdon tube technology. This eliminates the need for a power source and precludes the associated problems such as susceptibility to electronic line noise, power outage or potential fire hazard. In addition, this mechanical instrument is simple to operate, easy to troubleshoot, and can be readily flushed or purged to remove foreign matter or trapped gas. Accurate and reliable, the Ashcroft A4A sets a new standard for precision test gauges.

Accuracy: ±0.1% of Span
     Includes Calibration Certificate Traceable to NIST.
     Meets requirements of MIL-STD-45662 and
     ASME B40.1 Grade 4A
Repeatability: ±0.02% of Span
Hysteresis: <0.1% of Span (1)
Sensitivity: 0.01% of Span
Pressure Ranges: 0/15 psi through 0/100,000 psi
˝Unitized˝ Bourdon Tube Materials
Pressure Ranges:
     Beryllium Copper  0/15 psi thru 0/40 psi
     403 SS                0/50 psi thru 0/100,000 psi
Standard Pressure Inlet Type & Location:
     1⁄4 NPT Female – Back Connect
     0/15 psi thru 0/10,000 psi
     9⁄16-18 UNF-2B Female –
     Back Connect Over 10,000 through 100,000 psi
White Dial, Knife-Edge Pointer, Mirror Ring:
     Available Dial Sizes      6˝         8.5˝     12˝    16˝
     Scale Length               18˝        25˝      31.5˝ 43.25˝
     Pointer Travel               350°*
*Ranges over 30,000 psi have less travel
OPTIONAL FEATURES
˝Unitized˝ Bourdon Tube Materials/Pressure Ranges:
     Beryllium Copper 0/50 psi through 0/10,000 psi
     403                     0/15 psi through 0/40 psi
Optional Pressure Inlet Type and Location:
     (Specify type and location)
     1⁄4 NPT Female Bottom
     1⁄8 NPT Male or Female–Back or Bottom
     1⁄4 NPT Male or Female–Back or Bottom
     9⁄16-18 UNF-2B Female for 1⁄4˝ HP Tubing
     MS33649-4 Female Only–Back or Bottom
     MS33656-4 Male Only–Back or Bottom
     MS-16142 Female Only–Back or Bottom
     Mil-G-18997D Male Only–Back or Bottom
Dual Scale: For example, psi & inches of mercury or
inches of water & kPa
Optional Pressure Types: Absolute, Vacuum,
Compound(2)
Bimetallic Temperature Compensator: Eliminates
temperature errors from –25°F to +125°F(3)
Other Engineering Units/Special Scales: For
example, tons on ram
Slotted Link: Protects gauge from damage due to
sudden pressure release
Peak Load Indicator: Tracks the maximum indicated
pressure measurement
Wall Mounting Brackets: Provides simplified wall
mounted installation
(1) Hysteresis may exceed ±0.1% of span for ranges equal to
or greater than 75,000 psi. (±0.3% typical not to exceed
± 0.4% of span).
(2) Absolute gauges require manual settings of barometric
pressure
(3) Recommended for precision applications where ambient
temperature varies more than ±10°F

 


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