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- 621-1180RC 6211180RC
- Digital Input Module
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- 75 × 42 × 35 mm
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Honeywell 621-1180RC Detailed Product Description, Parameters, Applications, Advantages, Related Models, Brand Popular Models, and FAQ
1. Product Name and Introduction
Product Name: Honeywell 621-1180RC
The Honeywell 621-1180RC is an industrial-grade pressure sensor designed for high-accuracy pressure measurement in a variety of demanding applications. This sensor features robust construction, consistent performance over time, and compatibility with standard industrial interfaces. The “RC” suffix identifies this version as having a reinforced corrosion-resistant housing and sealed electronics for use in harsher environmental conditions.
The product is engineered to deliver precise pressure readings while maintaining long-term stability, making it suitable for use in automation, fluid power systems, HVAC equipment, mobile machines, and other industrial systems that require reliable pressure feedback.
2. Brand and Series
Brand: Honeywell
Series: 621 Series Pressure Sensors
The 621 Series comprises a family of rugged pressure sensors that combine high accuracy, wide operating temperature range, selectable outputs, and robust mechanical design. These sensors are used across industrial and commercial applications where reliable pressure monitoring and control are essential.
3. Detailed Specifications
| Parameter | Specification |
|---|---|
| Model | 621-1180RC |
| Pressure Type | Gauge pressure |
| Pressure Range | 0 to 100 PSI (0 to 6.9 bar) |
| Accuracy | ±0.5% of Full Scale (FS) |
| Output Options | Selectable: 4–20 mA or 0–5 VDC |
| Supply Voltage | 10 to 30 VDC |
| Response Time | < 5 ms |
| Temperature Compensation | –40°C to +125°C |
| Operating Temperature | –40°C to +125°C |
| Media Compatibility | Air, inert gases, oils, coolant fluids |
| Mechanical Port | 1/4″ NPT Male |
| Electrical Connector | 3-pin industrial connector |
| Dimensions (L × W × H) | 75 × 42 × 35 mm |
| Weight | 0.18 kg |
| Enclosure Protection | IP68 |
| Shock Resistance | 50 g |
| Vibration Resistance | 10 g |
| Housing Material | Stainless steel with corrosion-resistant coating |
| Seal Material | Viton™ or equivalent elastomer |
4. Product Applications
The 621-1180RC pressure sensor is widely used in environments requiring rugged and reliable measurement of fluid or gas pressure. Typical applications include:
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Industrial Automation Systems
Used for closed-loop control in pneumatic and hydraulic automation installations, where accurate pressure feedback is critical for process stability and efficiency. -
Mobile Machinery & Construction Equipment
Monitors oil, fuel, and hydraulic pressures on mobile vehicles such as excavators, loaders, and agricultural machinery. -
HVAC and Refrigeration Systems
Provides pressure data for compressor control, refrigerant charge monitoring, and airflow control systems to improve efficiency and reduce system strain. -
Water and Wastewater Treatment
Controls pump operation and filtration systems by measuring pressure in pipes and tanks, protecting equipment and maintaining optimal flow. -
Process Control in Chemical Plants
Measures pressure in piping and vessels containing non-corrosive or moderately corrosive fluids, enabling safety shutdowns and process regulation. -
Air Compressors and Pneumatic Tools
Ensures consistent pressure delivery and system protection via feedback to controllers and safety systems.
5. Product Advantages
The 621-1180RC boasts several advantages that make it suitable for demanding industrial applications:
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High Measurement Accuracy: ±0.5% full-scale accuracy provides consistent and reliable readings necessary for control and monitoring.
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Reinforced Corrosion Resistance: Stainless steel housings with corrosion-resistant finishes extend service life even in humid, wet, or chemically challenging environments.
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Wide Operating Temperature: Operates from –40°C to +125°C, enabling use in cold climates and high-temperature machinery environments.
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Multiple Output Options: Selectable 4–20 mA or 0–5 VDC output simplifies integration with a variety of control systems and data acquisition hardware.
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High Protection Level: IP68 rating means the sensor is protected against dust ingress and prolonged immersion in water, reducing maintenance and downtime.
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Compact and Lightweight: Designed for installation where space is limited without compromising ruggedness or performance.
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Fast Response: Under 5 ms response time allows rapid changes in process conditions to be accurately tracked.
6. Related Models in the Same Series
Below is a table of five models in the 621 Series or closely related pressure sensors that share similar design philosophies but differ in range, accuracy, or features:
| Model | Pressure Range | Output | Accuracy | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 621-1100RC | 0–50 PSI | 4–20 mA | ±0.75% FS | 70 × 40 × 30 | 0.16 |
| 621-1120RC | 0–150 PSI | 0–5 VDC | ±0.5% FS | 75 × 42 × 35 | 0.18 |
| 621-1140RC | 0–300 PSI | 4–20 mA | ±0.5% FS | 80 × 45 × 38 | 0.20 |
| 621-1160RC | –14.7 to 100 PSI | 0–10 VDC | ±1.0% FS | 75 × 42 × 35 | 0.18 |
| 621-1200RC | 0–600 PSI | 4–20 mA | ±0.5% FS | 85 × 50 × 40 | 0.24 |
7. Popular Models from the Same Brand
Below are five widely used and respected pressure or sensor products from the same brand, spanning different measurement needs:
| Model | Type | Key Characteristic | Output | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| PX90 Series Transducer | Industrial Pressure Sensor | High-accuracy industrial grade | 0–10 VDC / 4–20 mA | 90 × 50 × 45 | 0.32 |
| SCX Series Sensor | Differential Pressure Sensor | Measures differential across filters | 4–20 mA | 80 × 40 × 30 | 0.22 |
| FTL500 Flow Sensor | Airflow Measurement | Flow monitoring for HVAC | Pulse / Analog | 100 × 60 × 35 | 0.28 |
| TCR500 Temperature Probe | Temperature Sensor | Wide temp range sensing | 4–20 mA | 60 × 20 × 15 | 0.12 |
| RH502 Humidity Sensor | Humidity & Temp Sensor | Accurate humidity feedback | Digital | 45 × 45 × 15 | 0.10 |
8. Frequently Asked Questions (FAQ)
Q1: What is the intended use of the Honeywell 621-1180RC pressure sensor?
A1: This sensor is designed to measure fluid and gas pressure in industrial environments, offering reliable feedback for process control, pneumatic systems, and mobile machinery.
Q2: What are the output signal options for this model?
A2: It supports selectable output formats, including 4–20 mA and 0–5 VDC, to suit different control system inputs.
Q3: What does the “RC” in the model number indicate?
A3: The “RC” indicates a reinforced corrosion-resistant build with enhanced sealing, making the sensor suitable for harsh and wet environments.
Q4: What is the operating temperature range for this product?
A4: The sensor can operate from –40°C up to +125°C, which covers most industrial temperature extremes.
Q5: How accurate is the Honeywell 621-1180RC?
A5: The typical accuracy is ±0.5% of full scale, providing precise and repeatable readings for control systems.
Q6: Can this sensor be used with corrosive fluids?
A6: It is suitable for air, inert gases, oils, and most non-strongly corrosive fluids; however, extremely aggressive chemicals should be avoided unless materials are confirmed compatible.
Q7: What protection rating does this sensor have?
A7: The 621-1180RC carries an IP68 rating, meaning it is dust-tight and protected against continuous immersion in water at defined depths.
Q8: What type of mechanical connection does the sensor use?
A8: It uses a 1/4″ NPT male thread for standard installation into fluid or gas lines.
Q9: Is the output linear over the full pressure range?
A9: Yes, the sensor is designed to produce a linear output over the full specified pressure range, simplifying calibration and integration.
Q10: How should this sensor be mounted to ensure optimal performance?
A10: Mount it securely using the threaded port, avoid excessive vibration without proper damping, and ensure the electrical connector is sealed against moisture to maintain accuracy and longevity.