-4H sensor technology can be applied to water quality monitoring and quality control processes for both freshwater and seawater, enabling long-term continuous data measurement and storage with low maintenance costs.
-4H temperature sensorAdopting a special design, it is suitable for industries that require high reliability of temperature sensors. Currently, our temperature sensors are applied in the measurement network of power plants (including nuclear power plants) and factory control systems. We can provide sensor products that include a single sensor, a measurement network with analysis software, and multiple customized data interfaces for customers.
-4H conductivity sensorIt is mainly designed to monitor the conductivity of water bodies such as seawater, brackish water, fresh water, and wastewater, using high-resolution sensor technology and corrosion-resistant casing. The combination of reliable anti-corrosion protection and low energy consumption technology enables long-term stable conductivity measurement. We can provide flange connectors or fixed cable connectors.
-4H pressure sensorIt can measure the pressure, relative pressure, or partial pressure of different liquid media such as seawater, brackish water, freshwater, and wastewater. Suitable for scientific monitoring processes that require high measurement accuracy and resolution, such as gauge measurement or wave energy measurement in nearshore waters. We can provide flange connectors or fixed cable connectors.
-4H flow sensorIt is used to measure the flow rate of nearshore waters, rivers, open channels, and other water bodies. The standard type (N-type) is used to measure slowly changing flow rates, and users can set their own time constants and flow measurement ranges within the allowed range. S-type sensors can be used to measure rapidly changing flow rates, with a measurement range of up to ± 5 m/s. Conventional -4H flow sensors are equipped with flange interfaces that can be adjusted in direction, and fixed cable connectors can also be specified.
main parameter
parameter |
temperature |
conductivity |
pressure |
flow |
principle |
Thermistor |
electromagnetic induction |
Compression resistor |
electromagnetic induction |
Sensor type |
NTC、 Pt 100,、Pt 1000 |
Pressure, relative pressure, and partial pressure (Sealed Gauge) |
||
Measurement range |
-5 ° C...+60 ° C (customized for other ranges) |
1... 65mS/cm (customized for other ranges) |
Customization, such as pressure 0... 5 bar or relative pressure 1... 3 bar |
+/-1m/to+/-5m/s in X and Y directions |
Measurement accuracy |
0.1%FS |
0.1%FS |
0.3%FS |
0.1%FS |
signal output |
RS 232,RS 485,Profibus Slave |
0 / 4… 20 mA; 0 … 5 V; RS 232, RS 485 |
0 / 4… 20 mA; 0 … 5 V, RS 232,RS 485 |
0 / 4… 20 mA; 0 … 5 V, RS 232,RS 485 |
Power requirements |
9 … 36 VDC |
9 … 36 VDC (+ 24 VDC) |
9 … 36 VDC (+ 24 VDC) |
9 … 36 VDC (+ 24 VDC) |