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- 621-2200
- Output Module
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- 105 × 58 × 48 mm
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Honeywell 621-2200 Pressure Sensor — Comprehensive Product Overview, Specifications, Applications, Advantages, Related Models, Popular Brand Models, and FAQ
1. Product Name and Overview
Product Name: Honeywell 621-2200 / 6212200
The Honeywell 621-2200 is an industrial-grade pressure sensor designed for precise and reliable gauge pressure measurement in demanding environments. It is part of the 621 Series, which is recognized for compact design, high accuracy, and durability in industrial, mobile, and process control applications.
The 621-2200 provides stable analog outputs for integration with PLCs, data acquisition systems, and industrial control systems. It is engineered to withstand vibration, temperature extremes, and harsh environmental conditions, making it suitable for fluid power systems, pneumatic and hydraulic machinery, water and wastewater management, and other industrial applications.
Its design focuses on longevity, resistance to mechanical and environmental stress, and seamless integration into complex control systems.
2. Brand and Series
Brand: Honeywell
Series: 621 Series Industrial Pressure Sensors
The 621 Series is a trusted family of industrial pressure sensors. Known for wide pressure range options, selectable outputs, rugged housings, and reliable long-term performance, the 621 Series is widely used in industrial automation, hydraulic and pneumatic machinery, HVAC systems, water/wastewater systems, and mobile equipment.
3. Product Specifications
| Parameter | Specification |
|---|---|
| Model | 621-2200 |
| Pressure Type | Gauge pressure |
| Pressure Range | 0–2200 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) | 105 × 58 × 48 mm |
| Weight | 0.42 kg |
| Housing Material | Stainless steel |
| Seal Material | Viton or Buna-N elastomer |
| Environmental Protection | IP67 |
| Vibration Resistance | 10 g |
| Shock Resistance | 50 g |
4. Product Applications
Industrial Automation and Control:
Provides real-time pressure feedback in automated machinery, hydraulic and pneumatic systems, valves, and safety interlocks. Reliable measurement ensures precise control and operational efficiency.
Hydraulic and Pneumatic Systems:
Used in pumps, hydraulic circuits, and actuators. Ensures stable pressure measurement under dynamic conditions for operational safety and equipment longevity.
Mobile Equipment and Heavy Machinery:
Applied to construction, mining, and agricultural vehicles to monitor system pressures under high vibration and load. Its rugged design supports continuous performance in harsh field conditions.
HVAC and Refrigeration Systems:
Measures pressures in refrigerant lines, ductwork, and compressors to optimize system efficiency and prevent overpressure damage.
Water & Wastewater Systems:
Monitors pump pressures, filtration systems, and pipelines. Helps maintain flow, reduce energy use, and avoid equipment damage from overpressure or underpressure events.
Energy Production and Power Systems:
Used in turbines, generators, and auxiliary fluid circuits. Provides pressure feedback for safety systems, performance optimization, and reliability monitoring.
5. Product Advantages
High Accuracy and Stability:
Delivers ±0.5% full-scale accuracy for dependable and repeatable measurements.
Selectable Output Signals:
4–20 mA or 0–10 VDC outputs allow direct integration with PLCs and industrial controllers.
Durable Industrial Design:
Stainless steel housing, IP67 protection, and high vibration/shock resistance enable long-term reliability in harsh environments.
Wide Operating Temperature Range:
Works reliably from –40°C to +125°C in extreme industrial conditions.
Compact Form Factor:
Small size allows installation in tight spaces without compromising durability or measurement accuracy.
Easy Installation:
Standard 1/4″ NPT connections and 3-pin electrical connectors simplify replacement and integration.
6. Related Models — Same Series or Similar Types
| Model | Pressure Range | Output | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 621-1500 | 0–1500 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 100 × 55 × 45 | 0.35 |
| 621-2150 | 0–1500 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 102 × 56 × 45 | 0.40 |
| 621-2175 | 0–1750 PSI | 4–20 mA / 0–10 V | ±0.5% FS | 102 × 56 × 45 | 0.40 |
| 621-2500 | 0–2000 PSI | 4–20 mA | ±0.5% FS | 105 × 58 × 48 | 0.41 |
| 621-3000 | 0–3000 PSI | 4–20 mA | ±0.5% FS | 110 × 60 × 50 | 0.47 |
7. Popular Models — Other Strong Choices from the Same Brand
| Model | Sensor Type | Key Feature | Output | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| PX90 | Pressure Transducer | High accuracy for industrial use | 4–20 mA / 0–10 V | 92 × 50 × 45 | 0.33 |
| SCX Series | Differential Pressure Sensor | Accurate ΔP measurements | 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 | 4–20 mA | 65 × 22 × 15 | 0.14 |
| RH700 | Humidity & Temperature Sensor | Dual parameter sensing | Digital | 48 × 48 × 16 | 0.11 |
8. Frequently Asked Questions (FAQ)
Q1: What type of pressure does the 621-2200 measure?
A1: It measures gauge pressure, which is relative to atmospheric pressure, suitable for pneumatic and hydraulic systems.
Q2: What is the maximum pressure range?
A2: The sensor is designed for 0–2200 PSI, ideal for high-pressure industrial applications.
Q3: What output signals are available?
A3: Selectable 4–20 mA current or 0–10 VDC voltage output.
Q4: What is the accuracy of this sensor?
A4: ±0.5% of full-scale accuracy across the pressure range.
Q5: Can it operate in extreme temperatures?
A5: Yes, from –40°C to +125°C.
Q6: Which media can it measure?
A6: Compatible with air, inert gases, and non-corrosive hydraulic fluids.
Q7: What mechanical connection does it use?
A7: Standard 1/4″ NPT male threaded fitting.
Q8: Is it suitable for outdoor or harsh environments?
A8: Yes, IP67-rated housing provides protection against dust and temporary immersion in water.
Q9: Is regular calibration needed?
A9: Factory-calibrated; periodic verification is recommended for critical systems.
Q10: Which industries commonly use this model?
A10: Industrial automation, hydraulics, HVAC/R, mobile machinery, water/wastewater treatment, and energy systems.