1. Product Introduction
The ELECTESLA ES-P300 is a ceramic pressure sensor designed for general industrial and commercial use across a wide range of applications. It utilizes an ASIC signal conditioning chip and a dry ceramic capacitor pressure sensor, providing excellent anti-corrosion, anti-wear, anti-shock, and anti-vibration characteristics. This sensor offers high temperature stability and time stability, and can be in direct contact with most media.
Key Features:
- Multiple Process Connection Options – Easy to install.
- 1% Typical Accuracy – Offers superior accuracy for critical applications.
- Factory Calibrated – No need for field calibration, ensuring plug and play reliability.
- Rugged, Compact Design – Easy to package or install.
- OEM/ODM Available – Adaptable to special needs.
- CE, RoHS, UL listed certifications.
2. Specifications
The ES-P300 Mini Pressure Transmitter is available with various configurations to suit different industrial needs. Below are the detailed specifications:
| Parameter | Value |
|---|---|
| Model Number | ES-P300 |
| Brand Name | ELECTESLA |
| Product Name | ES-P300 Pressure Transmitter |
| Measuring Medium | Water, gas, oil compatible with 316L |
| Measuring Range | -1-0-1000bar (-0.1Mpa-100Mpa) |
| Max Measuring Range | 400 Bar & Above |
| Output Signal | 4-20mA, 0-5V, 0-10V, RS485 |
| Power Supply | DC24V (default 12V-36VDC) |
| Accuracy | ≤±0.5%FS |
| Operating Temperature | -10℃-65℃ |
| Housing Material | 304 Stainless Steel (SS316 customizable) |
| Pressure Connection (Thread) | M20*1.5, G1/4, G1/2, NPT1/4, NPT1/2 |
| Cable | 1M Cable (included) |
| Protection Class | IP65 (Waterproof, dustproof) |
| Response Time | ≤10ms |
| Overload Capacity | 200%F.S. |
| Temperature Drift | ≤0.03%F.S./1℃ |
| Pressure Type | Gauge pressure (default), absolute pressure |
| Pressure Hole | 3mm (resistant to instant pressure shock) |
| Connectors | Hussman Connectors |
| Battery Included | No |
| High-concerned chemical | None |
| Origin | Mainland China |
| Certification | CE, FCC, RoHS |
3. Setup and Installation
Proper installation is crucial for the accurate and reliable operation of your ES-P300 pressure transmitter. Follow these steps carefully:
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Unpacking and Inspection:
Carefully remove the pressure transmitter from its packaging. Inspect the device for any visible damage that may have occurred during transit. Ensure all components, including the cable, are present and intact.
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Mechanical Connection:
The ES-P300 supports various thread types (M20x1.5, G1/2, G1/4, NPT1/4, NPT1/2). Select the appropriate thread for your application. Ensure the connection point is clean and free of debris. Apply thread sealant if necessary to prevent leaks, but avoid overtightening which could damage the sensor or connection.
Figure 3: ES-P300 units demonstrating various thread options for mechanical connection. -
Electrical Wiring:
The transmitter requires a DC24V power supply (operating range 12V-36VDC). The output signal can be 4-20mA, 0-5V, 0-10V, or RS485 depending on the model. Refer to the wiring diagram below for correct connections. Ensure power is off before wiring.
Video 1: Demonstrates the physical aspects of the ES-P300, including its input/output specifications and thread types, and shows the wiring process. The video shows the following wiring color codes:
- Blue wire: Negative (-)
- Red wire: Positive (+)
- Yellow wire: Signal Output
- Green wire: Ground (for RS485, this might be a data line, consult specific model documentation if using RS485)
Always verify the specific wiring instructions for your exact model and output type to prevent damage.
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Environmental Considerations:
Install the transmitter in an environment within its specified operating temperature range (-10℃ to 65℃). While rated IP65 for waterproof and dustproof protection, avoid direct exposure to extreme conditions unless specifically designed for such use.
4. Operating Instructions
Once installed and wired correctly, the ES-P300 pressure transmitter operates automatically to provide continuous pressure readings.
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Power On:
After ensuring all connections are secure, apply the specified DC24V power to the transmitter. The device will begin sensing pressure immediately.
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Monitoring Output:
Connect your monitoring equipment (e.g., PLC, display, data logger) to the output signal lines (4-20mA, 0-5V, 0-10V, or RS485). The equipment should be configured to interpret the signal correctly based on the transmitter's measuring range.
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Pressure Measurement:
The transmitter will convert the detected pressure into the corresponding electrical output signal. For example, if using a 4-20mA output with a 0-10bar range, 4mA would represent 0 bar and 20mA would represent 10 bar.
Applications:
The ES-P300 is suitable for a variety of applications, including:
- Water Pressure Monitoring
- Air Pressure Systems
- Gas Pressure Measurement
- Agricultural Irrigation Systems
- Pump Control
- Internet of Things (IoT) Integration
- HVAC Systems
- Refrigerant Systems
5. Maintenance
The ES-P300 pressure transmitter is designed for low maintenance. However, periodic checks can ensure its longevity and accuracy.
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Cleaning:
Keep the exterior of the transmitter clean. For the pressure port, ensure it remains free of blockages or buildup from the measured medium. Use appropriate cleaning agents that do not react with stainless steel or the ceramic sensor.
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Connection Integrity:
Periodically check all mechanical and electrical connections for tightness and signs of corrosion or wear. Loose connections can lead to inaccurate readings or device failure.
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Calibration Check:
While factory calibrated, for critical applications, it is recommended to perform periodic calibration checks using a known reference pressure source to ensure continued accuracy.
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Environmental Monitoring:
Ensure the operating environment remains within the specified temperature and humidity limits to prevent premature aging or failure of components.
6. Troubleshooting
If you encounter issues with your ES-P300 pressure transmitter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Output/Incorrect Reading | Incorrect wiring, no power, sensor blockage, damaged cable. | Check wiring against diagram. Verify power supply (12-36VDC). Inspect pressure port for blockages. Check cable for damage. |
| Unstable Output | Loose connections, electrical interference, unstable power supply, pressure fluctuations. | Secure all connections. Ensure proper grounding. Use a stable power source. Consider damping mechanisms if pressure source is inherently unstable. |
| Leakage at Connection Point | Improper thread sealant, loose connection, damaged threads. | Reapply thread sealant. Tighten connection appropriately. Inspect threads for damage and replace if necessary. |
| Sensor Not Responding | Complete failure, severe overload. | If all other troubleshooting fails, the sensor may be damaged. Contact support for assistance. |
7. User Tips
- Thread Compatibility: Always double-check the thread type (e.g., M20x1.5, G1/4, NPT1/2) before installation to ensure a perfect and leak-free fit with your system.
- Wiring Verification: Before applying power, meticulously verify all wiring connections. Incorrect polarity or signal connections can damage the transmitter or connected equipment.
- Media Compatibility: While the ES-P300 is compatible with water, gas, and oil, ensure the specific medium does not contain highly corrosive elements that could degrade the 304L stainless steel housing or ceramic sensor over time.
- Overload Protection: The device has a 200% F.S. overload capacity. Avoid exposing the sensor to pressures significantly beyond its rated range to prevent permanent damage.
8. Warranty and Support
The ELECTESLA ES-P300 Mini Pressure Transmitter comes with a 12-month warranty from the date of purchase, covering manufacturing defects and malfunctions under normal operating conditions. This warranty ensures the quality and reliability of your product.
For technical support, warranty claims, or any inquiries, please contact ELECTESLA Official Store through the following channels:
- Online Service: Available through the seller's platform.
- WhatsApp: +8615665610693
- Email: sales02@jinqu-electric.com
Please have your product model and purchase details ready when contacting support to facilitate a quicker resolution.
