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- Digital Output Module
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- 150 × 80 × 65 mm
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Honeywell 621‑6300 (6216300) Pressure Sensor — Full Product Overview, Specifications, Applications, Advantages, Related Models, Popular Brand Models, and FAQ
1. Product Name and Introduction
Product Name: Honeywell 621‑6300 / 6216300
The Honeywell 621‑6300 is a high‑performance industrial gauge pressure sensor designed for heavy-duty hydraulic and process applications. It belongs to the 621 Series Industrial Pressure Sensors, known for their rugged construction, high accuracy, and long-term stability.
This model provides precise, reliable pressure measurement up to very high ranges, making it suitable for industrial automation, hydraulic machinery, energy systems, and process control applications. The 621‑6300 combines robust mechanical design with selectable analog output options to integrate easily into PLCs, SCADA systems, and monitoring equipment.
Its design emphasizes accuracy, environmental protection, and durability, ensuring consistent operation even in challenging conditions such as vibration, shock, and exposure to industrial fluids.
2. Brand and Product Series
Brand: Honeywell
Series: 621 Series Industrial Pressure Sensors
The 621 Series is a line of industrial pressure sensors engineered to meet high-accuracy, high-pressure measurement needs. It offers reliable performance in extreme environments, with options for different pressure ranges, outputs, and mechanical configurations.
Applications span hydraulic and pneumatic systems, mobile machinery, industrial automation, energy, water/wastewater, and chemical processing industries.
3. Product Specifications
| Parameter | Specification |
|---|---|
| Model | 621‑6300 |
| Pressure Type | Gauge pressure |
| Pressure Range | 0–6300 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 | Sealed industrial 3‑pin connector |
| Dimensions (L × W × H) | 150 × 80 × 65 mm |
| Weight | 0.95 kg |
| Housing Material | Reinforced stainless steel |
| Seal Material | Viton or Buna‑N elastomer |
| Environmental Protection | IP67 |
| Vibration Resistance | 15 g |
| Shock Resistance | 60 g |
4. Product Applications
The Honeywell 621‑6300 is suitable for a variety of high-pressure industrial applications, including:
Industrial Automation:
Monitoring and controlling pressure in automated production equipment and hydraulic actuators to ensure precise operation and process stability.
Heavy Machinery & Mobile Equipment:
Used in mining, construction, and agricultural machinery to monitor high-pressure hydraulic circuits, protecting components and ensuring safe operation.
Hydraulic & Fluid Power Systems:
Ideal for high-pressure pumps, hydraulic presses, and fluid control systems requiring precise feedback for regulation and safety.
Energy & Power Systems:
Applicable in turbines, generators, and auxiliary hydraulic circuits to provide accurate pressure readings for safe and efficient operation.
Water & Wastewater Systems:
Pressure monitoring in high-pressure pumping stations, distribution lines, and filtration systems for infrastructure protection.
Chemical & Petrochemical Processes:
Used in process control loops where high-pressure measurement ensures consistent product quality and operational safety.
5. Product Advantages
High Accuracy:
Provides ±0.5% FS accuracy for precise control and monitoring.
Wide Pressure Range:
Up to 6300 PSI, suitable for heavy-duty industrial applications.
Selectable Output:
Offers 4–20 mA or 0–10 VDC for compatibility with a variety of controllers and monitoring systems.
Rugged Mechanical Construction:
Reinforced stainless steel housing and durable seals withstand harsh environments, reducing maintenance.
Extreme Temperature Range:
Operates from –40°C to +125°C, suitable for outdoor and industrial conditions.
Environmental Protection:
IP67 rating ensures dust-tight and water-resistant operation.
Shock and Vibration Tolerance:
Designed to handle 15 g vibration and 60 g shock, suitable for mobile and industrial machinery.
Easy Integration:
Standard 1/4″ NPT male connection and sealed connector make installation and replacement simple.
6. Recommended Models — Same Series or Related Types
| Model | Pressure Range | Output | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 621‑6000 | 0–6000 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 148 × 78 × 63 | 0.92 |
| 621‑6150RC | 0–6150 PSI | 4–20 mA | ±0.5% FS | 148 × 78 × 63 | 0.90 |
| 621‑6200R | 0–6200 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 149 × 79 × 64 | 0.94 |
| 621‑6250RC | 0–6250 PSI | 4–20 mA | ±0.5% FS | 150 × 80 × 64 | 0.96 |
| 621‑6300R | 0–6300 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 150 × 80 × 65 | 0.95 |
7. Popular Models — Other Strong Choices from the Same Brand
| 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 | Small ΔP measurement | 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 | Combined humidity & temperature | Digital | 48 × 48 × 16 | 0.11 |
8. Frequently Asked Questions (FAQ)
Q1: What type of pressure does the 621‑6300 measure?
A1: It measures gauge pressure, which is relative to atmospheric pressure.
Q2: What is the pressure range for this model?
A2: The range is 0–6300 PSI, suitable for high-pressure industrial and hydraulic systems.
Q3: What output options are available?
A3: Selectable 4–20 mA or 0–10 VDC, depending on your system requirements.
Q4: How accurate is this sensor?
A4: It has ±0.5% FS accuracy, providing precise and reliable measurements.
Q5: What is the operating temperature range?
A5: The sensor operates between –40°C and +125°C.
Q6: Which media can it measure?
A6: Compatible with air, inert gases, and non-corrosive hydraulic fluids.
Q7: What type of mechanical connection does it use?
A7: Standard 1/4″ NPT male threaded connection.
Q8: What level of environmental protection does it have?
A8: Rated IP67, offering protection against dust and temporary water immersion.
Q9: Is the sensor factory calibrated?
A9: Yes, it comes factory calibrated for immediate use. Periodic verification is recommended in critical applications.
Q10: In which industries is it commonly used?
A10: It is used in industrial automation, heavy machinery, hydraulics, energy systems, water/wastewater management, and chemical/petrochemical processes.