Ashcroft G2 Pressure Transducer

The Ashcroft G2 pressure transducer offers gauge pressure measurement from 30 to 20,000 psi with a ±1.00% of span (total error band) accuracy. Additionally, compound pressure ranges are available from -14.7 up to 300 psi. The G2 housing features an all-welded sensor and pressure connection as well as all stainless steel wetted materials. A variety of process connection options are available along with both voltage and current output options.

Designed to combine performance and value, the Ashcroft G2 pressure transducer is targeted to meet the needs of original equipment manufacturers (OEM) in industrial applications such as off-road equipment, construction machinery, railroad and transportation, HVAC and refrigeration and many more. A 10-piece minimum order is required per configuration.

Frequently Asked Questions 

What is an Ashcroft G2 pressure transducer?

The Ashcroft G2 is an industrial pressure sensor that converts applied liquid or gas pressure into an electrical signal for use by controllers, displays, data-acquisition systems and other monitoring equipment. It is designed primarily for OEM and industrial applications that require reliable pressure measurement, strong resistance to shock and vibration, and a balance between performance and cost.

What industries use the Ashcroft G2?

The Ashcroft G2 is used in off-road vehicles, construction machinery, railroad and transportation equipment, agricultural implements, performance vehicles and other industrial OEM systems. Common process applications include compressor control, HVAC and refrigeration systems, pump monitoring, hydraulic and pneumatic equipment, and process automation.

What pressure media is the Ashcroft G2 compatible with?

The G2 uses a 17-4 PH stainless steel diaphragm and a 304 stainless steel process connection, making it suitable for many liquids and gases that are compatible with those materials. Media compatibility should always be verified for the specific fluid, concentration, temperature and operating conditions before installation, particularly when measuring corrosive chemicals or aggressive process fluids.

When should I choose a pressure transducer instead of a pressure transmitter?

Choose a pressure transducer when you need to convert pressure into an analog voltage signal, such as 0–5 VDC, 0–10 VDC or a ratiometric output, for connection to nearby control or monitoring equipment. A 4–20 mA configuration is generally preferable for longer cable runs, electrically noisy environments or industrial control loops because current signals are less affected by voltage drop and electrical interference. The G2 supports both voltage and 4–20 mA outputs, allowing it to serve either type of application.

What output signals are available?

Available Ashcroft G2 output options include 0–5 VDC, 0–10 VDC, 1–5 VDC, 1–6 VDC and 4–20 mA. The G2 is also available with a 0.5–4.5 VDC output using a 9–36 VDC supply or a 0.5–4.5 VDC ratiometric output using a 5 VDC supply. The appropriate output should be selected based on the input requirements of the connected controller, display or data-acquisition system.

What does Total Error Band mean?

Total Error Band, or TEB, represents the combined effect of multiple potential measurement errors across a specified temperature range. For the G2, it includes non-linearity, hysteresis, non-repeatability, temperature effects, zero offset and span-setting errors. The G2 has a Total Error Band accuracy of ±1% of span from -4 to 185°F and ±1.5% of span across the extended portions of its -40 to 257°F compensated temperature range.

Is the Ashcroft G2 suitable for hydraulic systems?

Yes. The G2 is specifically identified for hydraulic and pneumatic pressure sensing and is designed to withstand substantial shock, vibration and repeated pressure cycling. Its all-welded stainless steel sensing assembly, high-pressure range options and durability of more than 50 million cycles make it well suited for hydraulic machinery, mobile equipment, pumps and industrial control systems, provided the selected range, connection and output match the application.

Is the Ashcroft G2 appropriate for HVAC applications?

Yes. The G2 can be used in HVAC and refrigeration systems for applications such as compressor control, pump monitoring and equipment pressure measurement. Its available voltage and 4–20 mA outputs allow it to interface with many building-control and industrial automation systems. The required pressure range and compatibility with the refrigerant, oil or other process medium should be confirmed before selection.

Can the Ashcroft G2 be used outdoors?

The G2 can be used in many outdoor or washdown-prone installations when it is configured with the appropriate electrical connection and environmental protection. Instrumart lists housing protection up to IP65/IP67 and NEMA 4X, while Ashcroft lists an IP66 ingress rating for the product. Because the final rating may depend on the selected configuration and properly installed mating connections, users should verify the ingress rating of the complete part number before exposing it to rain, dust or washdown conditions.

What pressure ranges are available?

The Ashcroft G2 is available in gauge-pressure ranges from 30 to 20,000 psi. Compound-pressure configurations are also available, including ranges beginning at -14.7 psi and extending up to 300 psi. The selected measuring range should be high enough to accommodate normal operating pressure and expected pressure spikes without being so broad that useful measurement resolution is reduced.