Honeywell 621‑3580RC (6213580RC) Pressure Sensor — Comprehensive Product Overview

1. Product Name and Introduction

Product Name: Honeywell 621‑3580RC / 6213580RC

The Honeywell 621‑3580RC is a rugged industrial gauge pressure sensor engineered for high‑pressure applications where accurate, reliable measurement is essential. As part of the 621 Series Industrial Pressure Sensors, this model combines robust mechanical construction with precise electronic sensing to deliver stable pressure outputs in harsh environments. The “RC” designation (Reinforced/Corrosion‑resistant) signifies enhanced environmental protection and mechanical durability compared with standard versions.

Designed to operate continuously under industrial shock, vibration, temperature extremes, and moisture exposure, the 621‑3580RC provides selectable analog signal outputs. It is ideal for systems where reliable, long‑term pressure measurement feeds into control loops, safety systems, or data logging infrastructure. These characteristics make it suitable for a wide variety of sectors including manufacturing, construction equipment, fluid power systems, and energy facilities.

Its enhanced sealing, reinforced steel housing, and selectable electrical outputs ensure this sensor can perform where ordinary units would fail, providing stability and resilience over years of service.

2. Brand and Product Series

Brand: Honeywell

Series: 621 Series Industrial Pressure Sensors

The 621 Series is an established product family of industrial pressure sensors known for:

• Rugged construction capable of withstanding harsh mechanical environments

• Wide pressure ranges spanning low to very high pressures

• Selectable output signals compatible with common industrial automation systems

• Standardized mechanical/electrical connections that simplify installation

• Reliable accuracy and long‑term performance under repeat use

The 621‑3580RC is positioned near the top of the series in terms of pressure range and environmental robustness.

3. Product Specifications

4. Product Applications

The Honeywell 621‑3580RC pressure sensor is engineered for environments demanding both durability and measurement precision. Typical applications include:

Industrial Automation

Used throughout automated production lines to monitor pneumatic and hydraulic pressures feeding back into PLCs. Accurate pressure information supports regulation of actuators, valves, and machine safety systems. Deployment in this space improves production stability and assists in fault detection.

Heavy‑Duty Hydraulic Systems

Employed in hydraulic circuits of presses, injection molding machines, uplifts, and fluid power stations. The wide pressure range and rugged housing make it well suited for monitoring in heavy machinery applications where high pressure is normative.

Mobile Machinery & Construction Equipment

Installed on cranes, excavators, loaders, and mining equipment to deliver real‑time pressure feedback under vibration and dynamic loading conditions. Ability to withstand shock and vibration is critical in these mobile scenarios.

Water & Wastewater Facilities

Used in high‑pressure pumping stations and filtration lines, this sensor helps manage operational pressure, supports preventive maintenance, and protects against pipe bursts or pump failures.

Energy Production & Power Systems

Provides pressure monitoring in turbine feed lines, steam circuits, and auxiliary hydraulic systems. Accurate pressure feedback contributes to safety interlocks and energy efficiency regulation.

Chemical and Petrochemical Process Control

In petrochemical loops and pressure‑regulated reactors, the sensor supplies accurate measurements crucial for process control, product quality, and regulatory compliance.

5. Product Advantages

The 621‑3580RC stands out in its class due to several performance and design advantages:

High Accuracy Over Wide Range

With an accuracy of ±0.5% FS, this sensor delivers consistent pressure readings across its full operational range, which is necessary for precise control and monitoring.

Enhanced Corrosion Resistance

Reinforced stainless steel construction and corrosion‑resistant coating allow long service life even in environments where exposure to moisture or corrosive atmospheres would degrade lesser sensors.

Selectable Output Signals

Flexibility in output (4–20 mA or 0–10 VDC) ensures compatibility with a broad range of control systems without requiring auxiliary signal conversion.

Robust Environmental Protection

Rated IP67, the sensor resists dust ingress and temporary submersion, making it suitable for washdown environments and outdoor installations.

High Shock & Vibration Tolerance

Tolerance up to 60 g shock and 15 g vibration ensures reliable operation in dynamic mechanical systems, particularly in mobile or industrial contexts.

Wide Operating Temperature Range

Operating reliably from –40°C to +125°C, this sensor is suitable for extremely cold and hot environments.

Standard Industrial Interface

Standard 1/4″ NPT mechanical connection and sealed electrical connector minimize installation complexity and ensure secure mechanical and electrical interfacing.

6. Related Models — Same Series or Comparable Types

7. Popular Models — Other Strong Choices from the Same Brand