Ashcroft 2089 Precision Digital Test Gauge

Overview

The Ashcroft 2089 is a precision digital test gauge engineered for calibration laboratories, gauge repair facilities, and field verification of process instrumentation. Built around Ashcroft’s temperature-compensated silicone MEMS sensor technology, the Ashcroft 2089 delivers a total error band of ±0.05% of span, covering linearity, hysteresis, repeatability and temperature effects between 0°F and 150°F. For plant instrumentation technicians who need a portable master reference against ASME B40.100 grade process gauges, the Ashcroft 2089 provides laboratory-level confidence in a rugged, battery-powered field unit that fits in a padded carry pouch.

As the official authorized partner and exclusive regional representative for Ashcroft, Seven Star LLC proudly supplies the Ashcroft 2089 digital test gauge to calibration laboratories, mobile calibration vans, and process industry maintenance teams across the Sultanate of Oman, Muscat, and the wider GCC region. Facilities in Sohar and Salalah rely on genuine Ashcroft test instruments with full manufacturer traceability, and Seven Star LLC ensures every Ashcroft 2089 shipped locally carries authentic Ashcroft calibration documentation and warranty support.

Measurement Principle

At the core of the Ashcroft 2089 is a silicone MEMS (micro-electromechanical systems) pressure sensor, a solid-state technology that converts applied pressure into a proportional electrical signal through the deflection of an etched silicon diaphragm. Because the sensing element has no moving mechanical linkage, the Ashcroft 2089 avoids the friction, backlash and long-term drift that limit the accuracy of Bourdon-tube mechanical gauges used purely as calibration masters. The onboard microprocessor continuously compensates the raw sensor output for temperature across the full 0°F to 150°F (–18°C to 60°C) operating range, holding the terminal-point total error band to ±0.05% of span on the highest accuracy variant of the Ashcroft 2089.

This measurement approach gives the instrument the stability and repeatability required for verifying vacuum, compound, absolute and gauge-pressure instruments across ranges from vacuum through 7,000 psi. Because the digital display resolves to five full digits and the unit stores its calibration coefficients electronically, technicians can move between test points quickly without the parallax and interpolation errors inherent to analog dial gauges — a practical benefit when auditing dozens of field transmitters in a single shift.

Engineering Design of the Ashcroft 2089

Ashcroft engineered the 2089 around what it calls the industry’s smallest test-gauge case at just 3 inches, housed in a 300 Series stainless steel enclosure rated NEMA 4 / IP65 for weatherproof field use. The process connection is a 1/4 NPT male fitting in 316 stainless steel, available on the lower or top-mounted, left- or right-side configuration to suit different test-bench and hand-pump setups. This compact, corrosion-resistant build lets the gauge travel in a technician’s tool case or mobile calibration van without the bulk of a full bench-mount deadweight tester.

Power comes from three AAA alkaline batteries delivering over 1,000 hours of continuous operation, and the backlit LCD offers adjustable contrast for readability in bright sunlight or dim mechanical rooms. The Ashcroft 2089 supports twelve selectable engineering units and seven display languages, and its included stainless steel protective cover shields the case during transport between test sites. Field calibration capability means the unit can be re-zeroed and span-checked without returning it to a metrology lab, keeping it in active rotation across busy maintenance schedules.

Key Features of the Ashcroft 2089

This test gauge combines MEMS sensing accuracy with a rugged, portable form factor. Core capabilities include:

• Total error band accuracy of ±0.05% of span on the 2089 grade, terminal point method, including linearity, hysteresis, repeatability and temperature effects.
• Industry-compact 3-inch stainless steel case designed for portability in calibration kits and mobile test vans.
• Full five-digit LCD display with backlighting and adjustable contrast for outdoor and low-light readability.
• Twelve selectable engineering units and seven display languages for multi-site, multi-national maintenance teams.
• Pressure coverage from vacuum through 7,000 psi across gauge, compound, absolute and vacuum configurations.
• 1/4 NPT male process connection in 316 stainless steel, available in multiple mounting orientations.
• NEMA 4 / IP65 weatherproof enclosure rating suited to demanding plant and outdoor field environments.
• Field-calibratable operation powered by AAA batteries rated for over 1,000 hours of continuous use.

Industrial Applications

It is the reference instrument of choice wherever a facility must prove that its installed process gauges remain within tolerance. Calibration laboratories and gauge repair shops use the Ashcroft 2089 as a portable master when bench-testing incoming and outgoing instruments, while mobile calibration teams servicing refineries, power stations and desalination plants across Oman carry this test gauge to perform on-site verification without removing process gauges for offsite testing. In oil and gas production facilities, district cooling plants and water treatment works throughout the GCC, maintenance engineers rely on this instrument to confirm that safety-critical pressure indicators and switches are reading accurately before a turnaround or audit.

As the officially authorized partner for Ashcroft, Seven Star LLC distributes the Ashcroft 2089 to instrumentation workshops, test and measurement laboratories, and validation teams operating within the Sohar and Salalah economic zones, as well as to industrial clients throughout Muscat and the broader Sultanate of Oman. Because this instrument is genuinely sourced and factory-calibrated, quality and metrology departments can rely on its traceable accuracy when supporting ISO 9001 audits, third-party inspections, and internal instrument validation programs across the region.

Technical Specifications

Key technical parameters for the Ashcroft 2089 digital test gauge:

Request a Quote for Ashcroft 2089 Precision Digital Test Gauge

To submit a formal Request for Quote (RFQ), confirm regional warehouse stock, or download the complete technical datasheet for the Ashcroft 2089 digital test gauge, contact the instrumentation division at Seven Star LLC today. As the authorized partner for Ashcroft in Oman and the GCC, our engineers can help specify the correct accuracy class, connection configuration and range for your calibration and metrology program, and ensure your order arrives with full manufacturer traceability and local warranty support.

Related Products

• Yokogawa EJA110E Differential Pressure Transmitter (DPharp Sensor)
• Dwyer Series MSX Magnesense Differential Pressure Transmitter
• United Electric One Series 1XSWLL Pressure Switch
• PRESSURE SWITCH H100-376 United Electric, USA
• PRESSURE SWITCH H100-190 United Electric, USA
• United Electric, USA H100-172 PRESSURE SWITCH