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Ashcroft 3-inch metallic vacuum test gauge with white mirror-band dial and polycarbonate lens

Ashcroft

Ashcroft 30-1084S 02L Vacuum Test Gauge +/-0.50% Metallic

SKU CH-F24M-8VJR2

Vacuum test gauge with a 3-inch dial, ±0.50% accuracy, 316L stainless steel case and 1/4 NPT male bottom connection

  • TypeElectronic
  • +/-0.50% accuracy for precise vacuum readings
  • 316L stainless steel case resists corrosion in harsh environments
  • 3 inch dial with mirror band eliminates parallax error
  • 1/4 inch NPT male connection fits standard test ports
  • Electronic gauge design enables reliable field measurements

Ashcroft 30-1084S Vacuum Test Gauge

The Ashcroft 30-1084S is a vacuum test gauge built for technicians who need reliable pressure verification. It measures vacuum from 30 to 0 with a stated accuracy of +/-0.50 percent. The gauge features a 3 inch dial and a 316L stainless steel case for durability in demanding environments.

Accuracy and Connection Specifications

The critical specification is the +/-0.50 percent accuracy class, which determines suitability for calibration and critical testing tasks. The gauge uses a 1/4 inch male NPT bottom connection for direct process attachment. A polycarbonate lens protects the white mirror-band dial, and the case is not liquid-filled or field-fillable.

Build Integration and Mounting Constraints

This unit installs directly into a 1/4 inch female NPT port without panel-mount hardware. The bottom connection orientation requires clearance below the process port. The 316L stainless steel construction resists corrosion from compatible media, while the non-fillable design simplifies maintenance. It is not rated for IP or NEMA environmental protection.

Highlights

  • +/-0.50% accuracy for precise vacuum readings
  • 316L stainless steel case resists corrosion in harsh environments
  • 3 inch dial with mirror band eliminates parallax error
  • 1/4 inch NPT male connection fits standard test ports
  • Electronic gauge design enables reliable field measurements

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

What does the ±0.50% accuracy mean when the gauge is installed on a system?

The reading will stay within 0.50% of the true vacuum level across the 30 to 0 range, so calibration stays tight during testing.

How does the 1/4 in NPT male connection limit what I can attach?

It mates only with 1/4 in NPT female ports; adapters are needed for other thread types or sizes.

What clearance does the 3 in dial and bottom mount need?

The 3 in dial projects from the panel face, and the bottom connection requires space below the mounting surface for the 1/4 in NPT fitting.

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