8. Frequently Asked Questions (FAQ)

Q1: What type of pressure does the 621‑2200RC measure?

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

Q2: What is the pressure range of this model?

A2: The 621‑2200RC is designed to measure pressures from 0 to 2200 PSI, suitable for high‑pressure industrial systems.

Q3: What makes the “RC” version different from non‑reinforced models?

A3: The “RC” (Reinforced Corrosion‑resistant) version has enhanced housing materials and seals to withstand corrosive environments, moisture, and contaminants better than standard variants.

Q4: What output options are available?

A4: Users can select between 4–20 mA current loop and 0–10 VDC voltage outputs depending on the needs of their control system.

Q5: What accuracy can be expected from this sensor?

A5: This model provides an accuracy of ±0.5% of full scale, giving consistent and reliable pressure measurement.

Q6: Can this sensor be used outdoors?

A6: Yes. With an operating temperature range from –40°C to +125°C and IP68 protection, it is suitable for outdoor or harsh industrial environments.

Q7: What media can be measured with this sensor?

A7: It is compatible with air, inert gases, and non‑corrosive hydraulic fluids. Always confirm media compatibility for specific installations.

Q8: What mechanical connection standard does it use?

A8: It uses a standard 1/4″ NPT male threaded mechanical connection for easy installation.

Q9: Does this sensor require calibration before use?

A9: The sensor is factory calibrated. Periodic verification or calibration may be recommended for mission‑critical applications.

Q10: Which industries commonly use this model?

A10: The 621‑2200RC is widely used in industrial automation, hydraulics, HVAC/R systems, water/wastewater treatment, mobile machinery, and energy systems where accurate pressure measurement is essential.