1. Functional use
This series of instruments are designed and manufactured according to the requirements of national standard GB/T11828.1-2002. The instrument has good measurement accuracy and working stability in the environment with large water level variability and severe surge. It is especially suitable for hydrological stations, reservoir stations, dams, telemetry stations and hydropower stations.
This series of instruments consists of absolute value type water level sensor, display, sensor bracket, float, suspension cable, counterweight, RS485 communication interface, etc. It is an independent water level observation and measurement instrument, and can also be connected with electric display and gate opening instrument. The gate hoist control system is connected to form a computer integrated display and control system (such as ship lock, hydropower station, pumped storage power station, agricultural irrigation system, water supply and drainage system, etc.); the water level meter with RS485 communication interface can be directly connected with the communication machine. The computer network uses the hydrological automatic measuring and reporting system and the hydrological satellite telemetry system; the instrument for configuring the storage and recording unit can be widely used in the hydrological station. This series of instruments is suitable for fine wells and general logging with an inner diameter of 7 cm 10 cm 20 cm to 30 cm.
2. Technical parameters
2.1 Basic parameters
A Measuring range: 0-15 meters; 0-30 meters;
B Water level variability: < 100 cm / min
C Resolution: 1mm
D Water wheel starting torque: < 100g·cm (0.0098N·m)
F Measurement accuracy: 0.2% F·S
F display: pointer display
2.2 Mechanical parameters
a Water wheel working circumference: 256mm; 512mm
b measuring cable: Φ1mm stainless steel cable
c float diameter: Φ4.5, Φ10, Φ15cm optional
2.3 Communication interface
a Output signal: RS485 interface MODBUS protocol or other
b 4 ~ 20mA analog signal output (custom)
2.4 Use environment
a Ambient temperature: -25 ° C ~ 85 ° C
b relative humidity; <90% (40 ° C)
C size: Φ78×(110-130)
D power supply voltage: 12 ~ 24VDC
2.5 electric display (optional)
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