The core advantages of the industrial hydraulic oil hydraulic diaphragm digital pressure gauge lie in its diaphragm isolation for anti-corrosion and anti-pollution, digital display for precise and easy reading, and intelligent functions that adapt to hydraulic conditions. It is suitable for measuring high-pressure, viscous, and impurity-containing hydraulic oil scenarios. The following are the detailed features:
Core Structure and Isolation Protection
Diaphragm isolation design: The liquid-contact components use 316L stainless steel and other corrosion-resistant materials for the diaphragm, completely isolating the hydraulic oil from the internal measurement elements, preventing oil stains, impurities, and corrosive media (such as sulfur-containing hydraulic oil) from damaging the sensor and extending its service life.
Resistance to medium interference: It can measure high-viscosity, easily crystallizable, and suspended particle-containing hydraulic oil, preventing blockage or contamination, and is suitable for harsh hydraulic systems in construction machinery, metallurgy, injection molding machines, etc.
Excellent sealing performance: Fully sealed welded packaging, with a protection level up to IP65/IP67, resisting dust and water splashes, and suitable for installation in various environments such as outdoors and workshops.
Measurement Accuracy and Stability
High-precision sensing: It uses high-precision pressure sensors such as diffused silicon, with a measurement accuracy of ±0.1% FS to ±0.4% FS. Some models support wide-temperature compensation (-20°C to 80°C), with a temperature drift as low as ±0.03% FS/°C, ensuring the pressure control accuracy of the hydraulic system.
Resistance to vibration and shock: The solid-state structure has no moving parts and is equipped with a buffer design, capable of withstanding frequent pressure fluctuations and mechanical vibrations in the hydraulic system, reducing measurement errors.
Long-term stability: The full-scale and zero-point long-term stability is up to 0.2% FS/year, reducing calibration frequency and lowering maintenance costs.
Digital Function and Operational Convenience
Clear digital display: 5-digit LCD/LED large screen with backlight, supporting simultaneous display of pressure value, temperature (in some models), and units, providing intuitive readings and suitable for dim lighting conditions.
Rich intelligent functions
Multi-unit switching (such as MPa, bar, PSI, etc., 11 types), suitable for international standards and on-site requirements.
Peak/valley value recording, data holding, facilitating analysis of abnormal hydraulic system pressure.
One-button zeroing, calibration, and parameter customization (sampling rate, automatic shutdown, etc.), flexible operation.
Diverse signal output: Options include 4-20mA analog signal and RS485 communication, supporting connection with PLC and upper computers for remote monitoring.
Low power consumption and flexible power supply: Powered by lithium batteries (such as 4000mAh ER18505H), with low power consumption design. Some models support USB external power supply, with a battery life of up to thousands of hours.
Installation, Maintenance, and Safety
Convenient installation: Multiple interfaces (such as M20×1.5, NPT1/4) are compatible with hydraulic systems, allowing direct installation or connection through flanges, with easy loading and unloading.
Safety protection: Equipped with reverse polarity protection and current limiting protection (automatically limiting current to within 35mA in case of abnormality), preventing damage to the instrument due to incorrect wiring.
Simple maintenance: The diaphragm can be quickly disassembled and cleaned, with no complex mechanical components, low failure rate, and long maintenance cycle.
Application Adaptability
Suitable for all hydraulic system scenarios: Applicable to industrial hydraulic stations, excavators, cranes, and other equipment, capable of measuring key parameters such as system pressure and cylinder pressure.
Compatibility with various hydraulic oils: It has good adaptability to common hydraulic media such as mineral oil and synthetic oil, without reacting with the medium.
