Ash Bul0 pages
CASHCROFT
nnnnA4A Precision Pressure Gauge
nnnnFEATURES
nnnn•+0.7% F.S. accuracy - ASME B40.1,
nnnnGrade 4A
nnnn• Ranges from 15-100,000 psi
nnnn• Solid front protective case
nnnn• High and low pressure limit stops
nnnn• Mirror band dial to eliminate parallax
nnnnreading error
nnnn• Optional temperature compensation
nnnnmaintains 0.1% accuracy from
nnnn-25 to +125°F
nnnnThe Ashcroft precision pressure gauge
nnnnyields consistent, reliable accuracy
nnnnthrough the use of state-of-the-art preci-
nnnnsion machining and the world's most
nnnnrefined bourdon tube technology. This
nnnneliminates the need for a power source
nnnnand precludes the associated problems
nnnnsuch as susceptibility to electronic line
nnnnnoise, power outage or potential fire haz-
nnnnard. In addition, this mechanical instru-
nnnnment is simple to operate, easy to trouble-
nnnnshoot, and can be readily flushed or
nnnnpurged to remove foreign matter or
nnnntrapped gas. Accurate and reliable, the
nnnnAshcroft A4A sets a new standard for
nnnnprecision test gauges.
nnnnSPECIFICATIONS
nnnnAccuracy: ±0.1% of Span
nnnnIncludes Calibration Certificate Traceable to NIST.
nnnnMeets requirements of MIL-STD-45662 and
nnnnASME B40.1 Grade 4A
nnnnRepeatability: ±0.02% of Span
nnnnHysteresis: <0.1% of Span <1)
nnnnSensitivity: 0.01% of Span
nnnnPressure Ranges: 0/15 psi through 0/100,000 psi
nnnn"Unitized"Bourdon Tube Materials
nnnnPressure Ranges:
nnnnBeryllium Copper 0/15 psi thru 0/40 psi
nnnn403 SS 0/50 psi thru 0/100,000 psi
nnnnStandard Pressure Inlet Type & Location:
nnnnVA NPT Female - Back Connect
nnnn0/15 psi thru 0/10,000 psi
nnnn%6-18UNF-2B Female-
nnnnBack Connect Over 10,000 through 100,000 psi
nnnnWhite Dial, Knife-Edge Pointer, Mirror Ring:
nnnnAvailable Dial Sizes 6" 8.5" 12" 16"
nnnnScale Length 18" 25" 31.5" 43.25"
nnnnPointer Travel 350°*
nnnn'Ranges over 30,000 psi have less travel
nnnnOPTIONAL FEATURES
nnnn"Unitized"Bourdon Tube Materials/Pressure Ranges:
nnnnBeryllium Copper 0/50 psi through 0/10,000 psi
nnnn403 0/15 psi through 0/40 psi
nnnnOptional Pressure Inlet Type and Location:
nnnn(Specify type and location)
nnnnVA NPT Female Bottom
nnnn% NPT Male or Female-Back or Bottom
nnnnVA NPT Male or Female-Back or Bottom
nnnn%6-18 UNF-2B Female for VA'W Tubing
nnnnMS33649-4 Female Only-Back or Bottom
nnnnMS33656-4 Male Only-Back or Bottom
nnnnMS-16142 Female Only-Back or Bottom
nnnnMÌI-G-18997D Male Only-Back or Bottom
nnnnDual Scale: For example, psi & inches of mercury or
nnnninches of water & kPa
nnnnOptional Pressure Types: Absolute, Vacuum,
nnnnCompound'2*
nnnnBimetallic Temperature Compensator: Eliminates
nnnntemperature errors from -25°F to +125°F<3)
nnnnOther Engineering Units/Special Scales: For
nnnnexample, tons on ram
nnnnSlotted Link: Protects gauge from damage due to
nnnnsudden pressure release
nnnnPeak Load Indicator: Tracks the maximum indicated
nnnnpressure measurement
nnnnWall Mounting Brackets: Provides simplified wall
nnnnmounted installation
nnnn:i) Hysteresis may exceed ±0.1 % of span for ranges equal to
nnnnor greater than 75,000 psi. (±0.3% typical not to exceed
nnnn± 0.4% of span).
nnnn7) Absolute gauges require manual settings of barometric
nnnnpressure
nnnn3) Recommended for precision applications where ambient
nnnntemperature varies more than ±10°F
nnnnAll specifications are subject to change without notice.
nnnnAll sales subject to standard terms and conditions.
nnnn©Ashcroft Inc. 2008
nnnnAshcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
nnnnTel: 203-378-8281 • Fax: 203-385-0408
nnnnemail: ¡nfo@ashcroft.com • www.ashcroft .com
"