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Ashcroft 45-1082AS vacuum test gauge 30-0 black aluminum case glass lens bottom connection

Ashcroft

Ashcroft 45-1082AS 02L Vacuum Test Gauge 30-0 +/-0.25% Black

SKU CH-FVR0-38MXV

Vacuum test gauge with 4.5-inch dial, ±0.25% accuracy, aluminium case, 1/4-inch NPT bottom connection and white mirror-band dial reading 30 to 0

  • TypeElectronic
  • Accurate vacuum readings with ±0.25% precision
  • Durable aluminum case resists harsh environments
  • Clear 4.5" white dial with mirror band
  • Secure 1/4" NPT male bottom connection
  • Panel-mount ready with 4.875" cut-out size

Ashcroft 45-1082AS Vacuum Test Gauge

This Ashcroft vacuum test gauge measures negative pressure from 30 to 0 with a stated accuracy of ±0.25 percent. The 4 1/2 inch dial features a white face with a mirror band to reduce parallax error during readings. It is built for technicians and engineers who need precise vacuum verification in laboratory, calibration or industrial maintenance settings.

30 to 0 Range with ±0.25% Accuracy

The instrument covers a primary vacuum range of 30 to 0 and maintains its tight tolerance across that span. The electronic design and glass lens protect the movement while the mirror-band dial aids consistent alignment. It is not suited for positive pressure applications or environments requiring an IP or NEMA rating, as the case carries no ingress protection classification.

1/4 NPT Bottom Connection for Panel Mount

The gauge fits a panel cut-out of 4.875 inches and secures with a bolt circle diameter of 5.375 inches. A 1/4 inch male NPT connection at the bottom allows direct plumbing into the test circuit. The aluminum case is not field fillable, so the unit arrives ready for installation without on-site fluid handling.

Highlights

  • Accurate vacuum readings with ±0.25% precision
  • Durable aluminum case resists harsh environments
  • Clear 4.5" white dial with mirror band
  • Secure 1/4" NPT male bottom connection
  • Panel-mount ready with 4.875" cut-out size

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

Will the 1/4 in NPT male connection on the Ashcroft 45-1082AS fit my existing 1/4 in NPT female fittings?

Yes, the gauge features a 1/4 in NPT male process connection designed to thread directly into standard 1/4 in NPT female ports.

How can I verify the +/-0.25% accuracy of the gauge once installed?

The white dial with mirror-band eliminates parallax error; apply a known vacuum source and confirm the needle reads within 0.25% of the 30 to 0 range across the 4 1/2 in dial.

Does the Ashcroft 45-1082AS come with mounting hardware for the 4.875 in panel cut-out and 5.375 in bolt circle?

The gauge includes the aluminum case with glass lens; mounting bolts and panel fasteners for the 4.875 in cut-out and 5.375 in bolt circle are sold separately.

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