Flylin 5549e4de-1daa-4c43-bd34-d76051439da1
Flylin Pressure Transducer Sender Sensor User Manual
Model: 5 PSI (5549e4de-1daa-4c43-bd34-d76051439da1)
Product Overview
The Flylin Pressure Transducer Sender Sensor is a high-precision device designed for detecting pressure in various media such as oil, fuel, diesel, gas, water, or air. It features a robust 316 stainless steel construction and a high-quality ceramic pressure chip, ensuring reliable performance across a full temperature range. This sensor provides a linear voltage output, making it suitable for integration into a wide array of industrial and scientific applications.

Image: The Flylin Pressure Transducer Sender Sensor, showing the main sensor unit and its accompanying connector with wiring.
Key Features
- High Precision: Features a small output error of ±2%FS and high sensitivity across the full temperature range.
- Wide Application: Suitable for use in oil tanks, gas tanks, and diesel tanks to detect pressure in oil, fuel, diesel, gas, water, or air.
- Voltage Protection: Equipped with complete surge voltage protection for safe operation.
- Durable Materials: Constructed from high-grade 316 stainless steel and a high-quality ceramic pressure chip for durability in various environments.
- Voltage Signal Output: Provides a 0.5V – 4.5V linear voltage output. For the 5 PSI model, 0 psi outputs 0.5V, 2.5 psi outputs 2.5V, and 5 psi outputs 4.5V.

Image: A visual representation highlighting the six major features of the pressure transducer, including high accuracy, small size, perfect EMC protection, good pressure resistance, small long-term drift, and wide operating temperature range.
Setup and Installation
Proper installation is crucial for accurate and reliable operation of the pressure transducer. Follow these steps for setup:
- Physical Installation: The sensor features a 1/8" NPT thread for secure mounting. Ensure the mounting point is clean and free of debris. Apply appropriate thread sealant if necessary to prevent leaks, but avoid overtightening.
- Electrical Connection: The transducer requires a 5V DC power supply. Use the provided connector and ensure correct wiring based on the pinout diagram below.
- Pin 1 (Red Wire): Supply+ (Connect to 5V DC power supply).
- Pin 2 (Black Wire): GND (Ground connection).
- Pin 3 (Yellow Wire): Output (Voltage signal output).

Image: An example of the pressure transducer being installed into a system, demonstrating its compact size and threaded connection.

Image: A detailed pinout diagram for the pressure transducer's connector, showing the connection points for Supply+, GND, and Output, along with their corresponding wire colors (Red, Black, Yellow).
Ensure all connections are secure and insulated to prevent short circuits or signal interference.
Operating Principles
The Flylin Pressure Transducer converts applied pressure into a proportional electrical voltage signal. For the 5 PSI model, the output voltage ranges linearly from 0.5V at 0 PSI to 4.5V at 5 PSI. This linear relationship allows for precise pressure measurement when connected to a compatible monitoring system or microcontroller.
The sensor is designed for continuous operation within its specified pressure and temperature ranges. It is suitable for a variety of industrial and scientific applications, as illustrated below:

Image: A collage showing diverse applications of the pressure transducer, including Machinery Manufacturing Industry, Food and Pharmaceutical Industry, Petrochemical Industry, and Water Treatment Industry.
Maintenance
The Flylin Pressure Transducer is designed for minimal maintenance due to its robust construction. However, periodic inspection can help ensure long-term reliability:
- Visual Inspection: Periodically check the sensor and its connections for any signs of physical damage, corrosion, or loose wiring.
- Cleaning: If the sensor is exposed to contaminants, gently clean the exterior with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the stainless steel or electrical components. Do not attempt to clean the internal sensing element.
- Connection Integrity: Ensure the electrical connector remains securely attached and that the threaded connection to the system is tight and leak-free.
No user-serviceable parts are inside the sensor. Do not attempt to disassemble the unit.
Troubleshooting
If you encounter issues with your pressure transducer, consider the following troubleshooting steps:
- No Output or Incorrect Readings:
- Verify the power supply: Ensure the sensor is receiving a stable 5V DC. Fluctuations or incorrect voltage can lead to inaccurate readings or no output.
- Check wiring: Confirm that the Red, Black, and Yellow wires are connected correctly to Supply+, GND, and Output respectively, as per the wiring diagram. Loose or incorrect connections are common causes of issues.
- Inspect the connector: Ensure the connector is fully seated and that its pins are not bent or damaged.
- Check for physical obstruction: Ensure the pressure port is not clogged or obstructed, which could prevent accurate pressure sensing.
- Inconsistent or Fluctuating Readings:
- Power supply noise: If using a buck converter or other power source, ensure it provides clean power. Electrical noise can interfere with the sensor's signal. Consider adding noise filters if necessary.
- Grounding issues: Ensure proper grounding of your system to avoid signal interference.
- Environmental factors: Extreme temperature fluctuations or vibrations can sometimes affect sensor stability. Ensure the sensor is installed in a stable environment within its operating temperature range.
- Sensor Failure (No Output or Constant Incorrect Reading):
- If all connections and power supply are verified correct and the sensor still provides no output or a constant incorrect reading (e.g., stuck at 4.27V at atmospheric pressure as reported by some users), the sensor itself may be defective.
- Contact the seller or manufacturer for support if the sensor is suspected to be faulty.
Always disconnect power before performing any inspection or maintenance on the electrical connections.
Specifications
| Attribute | Value |
|---|---|
| Brand | Flylin |
| Model Number | 5549e4de-1daa-4c43-bd34-d76051439da1 (5 PSI variant) |
| Material | 316 Stainless Steel, Ceramic Pressure Chip |
| Pressure Range | 0-5 PSI (for this specific model) |
| Output Signal | 0.5V – 4.5V Linear Voltage Output |
| Supply Voltage | 5 Volts (DC) |
| Output Error | ±2%FS |
| Item Weight | 0.04 Kilograms (approx. 1.41 ounces) |
| Package Dimensions | 4.88 x 4.33 x 0.98 inches |
| Thread Type | 1/8" NPT |
| Country of Origin | China |
| Date First Available | April 23, 2024 |

Image: Technical drawing showing the dimensions of the pressure transducer in both millimeters and inches, including overall length, body diameter, and thread length.
Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the purchase documentation or contact the seller directly. Specific warranty terms may vary depending on the retailer and region.
For further assistance, you may also visit the official Flylin store on Amazon: Flylin Store.
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