8. Frequently Asked Questions (FAQ)

Q1: What type of pressure does the 621‑6550 measure?

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

Q2: What is the pressure range of this sensor?

A2: It covers 0–6550 PSI, suitable for very high-pressure systems.

Q3: What output signal options does it offer?

A3: It provides selectable 4–20 mA current or 0–10 VDC voltage outputs.

Q4: How accurate is the 621‑6550?

A4: Accuracy is ±0.5% FS, ensuring stable and reliable measurement.

Q5: What operating temperature can it handle?

A5: Operating range is –40°C to +125°C.

Q6: What media is compatible?

A6: Compatible with air, inert gases, and non-corrosive hydraulic fluids.

Q7: What mechanical connection is used?

A7: Standard 1/4″ NPT male connection for easy installation.

Q8: What environmental protection does it have?

A8: Rated IP67, resistant to dust and temporary water immersion.

Q9: Is it factory calibrated?

A9: Yes, it comes factory-calibrated with high precision.

Q10: Which industries commonly use this sensor?

A10: It is widely used in industrial automation, hydraulic systems, heavy machinery, power generation, water/wastewater management, and chemical/petrochemical applications.