8. Frequently Asked Questions (FAQ)

Q1: What type of pressure does the 621‑3500 measure?

A1: It measures gauge pressure, relative to atmospheric pressure.

Q2: What is the pressure range?

A2: 0–3500 PSI, suitable for high-pressure industrial and hydraulic applications.

Q3: What is the difference between the standard and R version?

A3: The R version has reinforced housing and sealing for enhanced corrosion resistance in harsh environments.

Q4: What output signals are available?

A4: Selectable 4–20 mA or 0–10 VDC analog signals.

Q5: What is the accuracy?

A5: ±0.5% of full scale, ensuring precise and repeatable measurements.

Q6: Can it operate in extreme temperatures?

A6: Yes, the operating range is –40°C to +125°C.

Q7: Which media are compatible?

A7: Air, inert gases, and non-corrosive hydraulic fluids.

Q8: What type of mechanical connection is used?

A8: Standard 1/4″ NPT male threaded connection.

Q9: Does the sensor resist vibration and shock?

A9: Yes, it tolerates vibration up to 10 g and shock up to 50 g.

Q10: What industries commonly use this sensor?

A10: Industrial automation, hydraulics, mobile and construction machinery, energy production, process control, and water/wastewater management.