Table of Contents In our daily lives, air itself exerts pressure, known as atmospheric pressure. Living at the Earth’s surface, we have become accustomed to
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Explosion-proof Pressure Sensor
Our explosion-proof pressure sensor adopts laser resistance trimming temperature compensation process, which has higher measurement accuracy and more stability. It has reverse polarity protection and instantaneous overcurrent and overvoltage protection, and meets EMI protection requirements. It has reliable quality, small size and high cost performance. It can be equipped with LCD display for easy on-site data reading. It can be used to measure gauge pressure, negative pressure, and absolute pressure.
- Model: RK-PM400-EX
- MOQ: 1 PCS
- Delivery date: within 24 hours
- Price: $51.4~$110
About - Explosion-proof Pressure Sensor
Our explosion-proof pressure sensor series adopts the 2088 housing design. The electronic circuitry is completely isolated from the external environment, ensuring stable and reliable pressure measurement even in dusty, misty, or high-humidity conditions.
General purpose pressure sensor
Our explosion-proof pressure sensor adopts a high-performance piezoresistive chip combined with advanced circuit processing and temperature compensation technology to convert pressure changes into linear current or voltage signals. It features a compact design, easy installation, and is suitable for measuring gases and liquids that are compatible with the wetted materials. We offer both analog signal and RS485 output options, allowing connection to on-site PLCs, configuration software, human-machine interfaces (HMI), or industrial controllers. In addition, users can upload data to our free cloud platform through our monitoring host, and view real-time data, historical records, and alarm logs via a computer or mobile application.
Sanitary pressure sensor
The sanitary (flush diaphragm) pressure sensor is developed based on the explosion-proof pressure sensor structure, with an added welded sealed isolation diaphragm. The welded sealed diaphragm assembly is available with various process connection options, making it especially suitable for pressure measurement in high-temperature, high-viscosity, crystallizing media, and applications prone to clogging. The sanitary flush diaphragm increases the contact area with the medium and offers a wide temperature range, strong overload capacity, and excellent corrosion resistance. It is widely used for pressure measurement in sanitary and pharmaceutical applications.
Parameters
| Output signal | RS485 | Output signal | 4-20mA/0-5V/0-10V |
|---|---|---|---|
| Power supply | 10-30V DC | Power supply | 12~36V DC, typical 24V |
| Measure range | -0.1~60MPa (optional) | Measure range | -0.1~+100MPa (optional) |
| Accuracy | 0.2%FS, 0.5%FS (default) | Accuracy | 0.2%FS, 0.5%FS (default) |
| Overload capacity | ≤2 times the range (≤7MPa), ≤1.5 times the range (≥7MPa) | Overload capacity | <1.5 times the range |
| Long-term stability | ±0.2%FS/year | Pressure zero-point temperature error | ±0.75%FS, @35℃ |
| Pressure zero-point temperature error | ±0.75%FS, @35℃ | Pressure full-point temperature error | ±0.75%FS, @35℃ |
| Pressure full-point temperature error | ±0.75%FS, @35℃ | Ambient temperature | -40℃~+80℃ |
| Operating temperature | -20℃~+60℃ | Medium temperature | -40℃~+75℃, -40℃~+150℃ (high temperature type) |
| Medium temperature | -40℃~75℃; -40℃~150℃ (high temperature type) | Load capacity | Current type: ≤500Ω (without display) ≤250Ω (with display) |
| Pressure compensation temperature | -10~70℃ | Voltage type: ≤510Ω | |
| Measuring medium | Gases and liquids that are non-corrosive to stainless steel | Measuring medium | Gases and liquids that are non-corrosive to stainless steel |
| Protection rating | IP67 | Protection rating | IP65 |
Features
- All stainless steel construction, protection rating IP65
- Reverse polarity protection and instant overcurrent/overvoltage protection, compliant with EMI protection requirements
- Laser trimming temperature compensation technology for higher and more stable measurement accuracy
- Automatic temperature compensation with thermal drift correction
- Vibration-resistant, shock-resistant, and protected against RF electromagnetic interference
- Strong overload and anti-interference capability, cost-effective and stable performance
- Optional display module available
Applications
This explosion-proof pressure sensor is compact and easy to install, with an optional LCD display. Its housing is made of stainless steel, providing waterproof and corrosion-resistant properties, making it suitable for measuring gases or liquids that do not corrode stainless steel. It can measure gauge pressure, negative pressure, and absolute pressure, making it an ideal choice for industrial process pressure measurement. It is widely used in water plants, refineries, wastewater treatment plants, construction materials, light industry, and the machinery sector for measuring the pressure of liquids, gases, and steam.
Installation - Explosion-Proof Pressure Sensor
When you receive the explosion-proof pressure sensor provided by our company, please carefully read the manual and check the packaging list.
During installation, check whether the on-site interface matches the sensor’s connection type and thread specifications. When connecting, tighten slowly and avoid applying torque directly to the sensor housing—apply torque only to the hexagonal section of the pressure interface. Ensure that the explosion-proof pressure sensor is installed vertically to the ground. Use a wrench to tighten it from the hexagonal nut at the base of the sensor, avoiding direct rotation of the upper part of the sensor. Choose an installation location that allows for easy operation and maintenance, and keep it as far away as possible from sources of vibration or heat.
When connecting the power supply, strictly follow the wiring instructions provided by our company.
Renke explosion-proof pressure sensor is a precision instrument. Do not disassemble it arbitrarily during transportation or installation. Additionally, avoid collisions, drops, or contact with sharp objects on the sensor diaphragm to prevent damage to the core component.
Ensure proper sealing of the external thread on the pressure sensor; otherwise, inaccurate or unstable pressure readings may occur.
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