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Ashcroft 2 1/2 inch stainless steel compound gauge with polycarbonate lens showing 30 to 0 to 30 psi range

Ashcroft

Ashcroft 251009 Compound Gauge 30 to 0 to 30 psi 2 1/2 in

SKU CH-9B5J-GZKKF

Measures 30 to 0 to 30 psi with ±1.0 % accuracy in a 2 1/2 in stainless-steel case rated IP54 vented and IP65 closed

  • TypeElectronic
  • Compound range 30 to 0 to 30 psi covers vacuum and pressure
  • Accuracy ±1.0 % for reliable readings
  • 304 stainless steel case resists corrosion
  • IP54 vented and IP65 sealed protection
  • PLUS! Performance dry dampening stabilises needle

Compound Gauge 30 to 0 to 30 psi

The Ashcroft 251009 is an industrial compound gauge built for technicians who need to measure both vacuum and positive pressure on a single instrument. Its 2 1/2 in dial displays a primary range of 30 to 0 to 30 psi with an accuracy of +/- 1.0 percent. The 304 stainless steel case and polycarbonate lens suit harsh workshop or plant environments.

IP54 vented and IP65 sealed ratings

The gauge carries an IP54 rating when the vent plug is open and IP65 with the plug closed, meeting NEMA 4 in the sealed state. This bottom-mounted, 1/4 in male NPT connection unit is not field-fillable and uses PLUS! Performance dry dampening instead of liquid fill. Buyers needing a liquid-filled gauge or a different connection orientation cannot use this model.

2 1/2 in dial with 304 stainless case

The 2 1/2 in nominal dial size provides clear reading for compound pressure tasks within the stated 30 to 0 to 30 psi span. The metallic 304 stainless steel case resists corrosion while the polycarbonate lens protects the movement. Applications requiring a larger dial diameter, higher pressure range, or panel-mount configuration fall outside this gauge's design envelope.

Highlights

  • Compound range 30 to 0 to 30 psi covers vacuum and pressure
  • Accuracy ±1.0 % for reliable readings
  • 304 stainless steel case resists corrosion
  • IP54 vented and IP65 sealed protection
  • PLUS! Performance dry dampening stabilises needle

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

Which pressure range version of the Ashcroft 251009 compound gauge should I select?

The gauge covers a single range of 30 to 0 to 30 psi, so there is no alternative range to choose for this model.

What does the ±1.0 percent accuracy mean when the gauge is installed on a live system?

Readings will stay within 1.0 percent of the full 30 to 0 to 30 psi scale across the entire span.

How does the 1/4 in NPT male connection limit the gauge in practice?

It mates only with 1/4 in NPT female ports; the bottom-mounted fitting also fixes the gauge orientation.

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