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Honeywell 621‑3560RC Pressure Sensor — Complete Product Overview, Specifications, Applications, Advantages, Related Models, Popular Brand Models, and FAQ
1. Product Name and Introduction
Product Name: Honeywell 621‑3560RC
The Honeywell 621‑3560RC is a premium industrial gauge pressure sensor designed for demanding environments where accurate pressure measurement is critical to performance, safety, and control. It belongs to the 621 Series Industrial Pressure Sensors, a widely used family of products with a strong reputation for precision, durability, and ease of integration.
The 621‑3560RC is built with a reinforced corrosion‑resistant housing and high‑quality internal sensing components to handle harsh environments, including vibration, shock, moisture, and temperature extremes. It offers selectable analog outputs that make it suitable for use with programmable logic controllers (PLCs), data acquisition systems, process controllers, and other industrial automation platforms.
This model is particularly suitable for high‑pressure applications that require robust performance in environments such as heavy hydraulic systems, mobile machinery, water/wastewater facilities, and industrial process control systems.
2. Brand and Series
Brand: Honeywell
Series: 621 Series Industrial Pressure Sensors
The 621 Series includes a variety of pressure sensors designed to provide dependable pressure measurement across a wide range of industrial settings. These sensors share similar mechanical design principles, selectable output options, standardized industrial connections, and broad operating temperature ranges. The 621‑3560RC represents one of the higher pressure range models in the series with enhanced environmental resistance.
3. Product Specifications
| Parameter | Specification |
|---|---|
| Model | 621‑3560RC |
| Pressure Type | Gauge pressure |
| Pressure Range | 0–3560 PSI |
| Accuracy | ±0.5% of Full Scale (FS) |
| Output Signal | Selectable: 4–20 mA or 0–10 VDC |
| Supply Voltage | 10–30 VDC |
| Response Time | ≤ 5 ms |
| Operating Temperature Range | –40°C to +125°C |
| Media Compatibility | Air, inert gases, non‑corrosive hydraulic fluids |
| Mechanical Connection | 1/4″ NPT Male |
| Electrical Connector | Industrial sealed 3‑pin connector |
| Dimensions (L × W × H) | 125 × 68 × 55 mm |
| Weight | 0.65 kg |
| Housing Material | Stainless steel with reinforced corrosion‑resistant coating |
| Seal Material | Viton or Buna‑N elastomer |
| Environmental Protection | IP67 |
| Vibration Resistance | 15 g |
| Shock Resistance | 60 g |
4. Product Applications
The Honeywell 621‑3560RC is engineered for applications where reliable, high‑precision pressure measurement is essential. Its robust design makes it suitable for use in environments where sensors can be exposed to vibration, moisture, and temperature extremes.
Industrial Automation and Control:
Integrated into control loops for monitoring pneumatic and hydraulic pressures, helping regulate actuators, valves, and safety systems in automated production lines.
Heavy‑Duty Hydraulic Systems:
Used to monitor and regulate pressure in hydraulic presses, injection molding machines, construction equipment, and industrial presses.
Mobile Machinery and Equipment:
Installed on cranes, excavators, loaders, and mining machines where pressure feedback is required under dynamic load conditions.
Water and Wastewater Systems:
Used in pumps, high‑pressure pipelines, and filtration systems to maintain operational safety and efficiency, helping prevent overpressure conditions.
Energy and Power Generation Systems:
Monitoring pressure in turbines, generators, and auxiliary hydraulic systems supports safety systems, performance optimization, and maintenance planning.
Process Control in Chemical and Petrochemical Plants:
Ensures accurate pressure feedback for process loops that affect product quality, safety interlocks, and regulatory compliance.
5. Product Advantages
The 621‑3560RC pressure sensor offers several key benefits that make it a strong choice for industrial engineering applications.
High Accuracy and Consistency:
With an accuracy of ±0.5% of full scale, the sensor provides consistent and reliable pressure readings crucial for process control and safety systems.
Rugged and Corrosion‑Resistant Construction:
The reinforced corrosion‑resistant housing offers enhanced protection against harsh environmental conditions, including moisture and chemical exposure.
Flexible Output Signals:
Selectable analog outputs — 4–20 mA or 0–10 VDC — provide versatile integration options for PLCs, data acquisition systems, and industrial controllers.
Wide Operating Temperature Range:
This model operates reliably within a broad temperature range (–40°C to +125°C), allowing deployment in both cold and high‑temperature environments.
Industrial‑Grade Environmental Protection:
With an IP67 rating, it is protected from dust and temporary immersion in water, supporting use in washdown environments and outdoor installations.
Compact and Robust Mechanical Design:
The compact dimensions and standard 1/4″ NPT connection make installation straightforward, even in confined spaces.
High Vibration and Shock Tolerance:
Designed to withstand up to 15 g vibration and 60 g shock, making it suitable for mobile and heavy equipment applications.
6. Recommended Models — Same Series or Related Types
Below are five models related to the 621‑3560RC, either in the same series or serving similar industrial pressure measurement roles. These models vary mainly in pressure range or output options but share industrial‑grade performance.
| Model | Pressure Range | Output | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 621‑3500RC | 0–3500 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 120 × 65 × 55 | 0.60 |
| 621‑3552RC | 0–3550 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 122 × 65 × 55 | 0.60 |
| 621‑3502 | 0–3500 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 120 × 65 × 55 | 0.58 |
| 621‑3700 | 0–3700 PSI | 4–20 mA | ±0.5% FS | 125 × 65 × 55 | 0.62 |
| 621‑3300 | 0–3300 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 115 × 62 × 52 | 0.55 |
7. Popular Models — Other Strong Choices from the Same Brand
Below are five additional popular sensor models from the same brand, chosen for their strong performance across different industrial measurement needs.
| Model | Sensor Type | Key Feature | Output | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| PX90 | Pressure Transducer | High industrial accuracy | 4–20 mA / 0–10 V | 92 × 50 × 45 | 0.33 |
| SCX Series | Differential Pressure Sensor | Measures differential ΔP | 4–20 mA | 80 × 40 × 30 | 0.21 |
| ABP Series | Board‑Mount Pressure Sensor | Compact OEM integration | Analog / Digital | 30 × 20 × 12 | 0.05 |
| TCR700 | Temperature Sensor | Wide temperature range sensing | 4–20 mA | 65 × 22 × 15 | 0.14 |
| RH700 | Humidity & Temperature Sensor | Dual humidity and temperature | Digital | 48 × 48 × 16 | 0.11 |
8. Frequently Asked Questions (FAQ)
Q1: What type of pressure does the Honeywell 621‑3560RC measure?
A1: The 621‑3560RC measures gauge pressure, which is pressure relative to atmospheric pressure.
Q2: What is the maximum pressure range for this model?
A2: It is designed to measure pressures from 0 to 3560 PSI, suitable for high‑pressure industrial systems.
Q3: What output signals are supported?
A3: This sensor offers selectable analog outputs: 4–20 mA current loop or 0–10 VDC voltage output.
Q4: What accuracy can be expected?
A4: The 621‑3560RC provides ±0.5% of full‑scale accuracy, ensuring repeatable and reliable measurements.
Q5: In what environments is this sensor suitable?
A5: With an operating range of –40°C to +125°C and IP67 protection, it is suitable for harsh industrial, outdoor, and washdown environments.
Q6: What media can this sensor measure?
A6: It is compatible with air, inert gases, and many non‑corrosive hydraulic fluids. Media compatibility should always be verified with application requirements.
Q7: What mechanical connection does the sensor use?
A7: The sensor uses a standard 1/4″ NPT male threaded connection for installation into pressurized systems.
Q8: How should this sensor be installed?
A8: It should be securely threaded into the system port using appropriate thread sealing materials and protected from extreme vibration or impacts that exceed its rated vibration limits.
Q9: Is calibration required before use?
A9: The sensor comes factory‑calibrated. Depending on criticality of application, routine calibration checks may be recommended.
Q10: What industries commonly use the 621‑3560RC?
A10: Common industries include industrial automation, heavy machinery, hydraulic systems, HVAC/R, water/wastewater management, and energy production where accurate high‑pressure measurement is essential.