Osmotic pressure monitoring

Osmotic pressure monitoring is mainly used for long-term automatic monitoring of pore water pressure or infiltration line in slope, dam, tailings reservoir and other structures.Osmotic pressure monitoring (piezoresistive pore water pressure gauge) is a hydrological instrument used for water level and water temperature measurement. It is developed through the accumulation of many years of production process technology and the use of advanced mixed signal processing technology. It overcomes the shortcomings of traditional analog circuit modules and can achieve full-scale digital linear correction and full-temperature zone digital temperature error compensation; compensation parameters are stored in non-volatile memory, and multiple safety protection mechanisms avoid product unusability due to loss of calibration parameters; the circuit module has power monitoring and watchdog monitoring functions, and the immersion structure is fully stainless steel sealed, which greatly improves the reliability of the product.

Osmotic pressure monitoring (piezoresistive pore water pressure gauge) features:

High stability: high quality and high stability pressure sensing element

High precision: water level accuracy 0.1%FS, resolution 1mm; temperature accuracy ±0.5°C, resolution 0.01°C.

Low power consumption: intelligent power management design, acquisition power consumption 3-4MA

Fully functional: water level, water temperature, water pressure and other factors are monitored in real time at the same time

Air pressure compensation: Direct measurement of atmospheric pressure (absolute pressure optional)

Signal standard: RS485 interface MODBUS-RTU standard communication protocol

Protection level: All stainless steel sealed structure, IP68 protection

Temperature compensation: full range digital calibration, full temperature range temperature error compensation

Sensor electrical characteristics: Overvoltage protection, surge voltage protection and power supply polarity reverse connection protection to avoid electrical damage caused by operating errors

1.2 Osmotic pressure monitoring application areas

The main application areas of FT-SY1 piezoresistive osmometer (piezoresistive pore water pressure gauge) are:

Groundwater level and temperature data monitoring

Dam safety seepage pressure and liquid level monitoring

Real-time monitoring of reservoir and dam water levels

Lake and surface runoff water level monitoring

Unmanned hydrological monitoring station

Real-time monitoring of liquid level in the tank

On-site liquid level monitoring for industrial control systems

1.3 Osmotic pressure monitoring product specifications

Basic Specifications

Basic performance parameters

Table 1-3 Basic performance parameter description