IF-05 Water Flow Meter

1 Features

· Sensor equipped with a full-scale photoelectric rotary encoder for digital output

· Stable performance, reliable, no temperature drift, time drift, and resistant to strong electromagnetic interference. Measurement data remains accurate even after power failure and subsequent reconnection.

· High resolution,ISO/DISInternational Standard Recommended Digital Head Observation Sensor

· ConfigurableRS485/232Communication Interface4-20mACurrent loop output interface, directly connected to communication equipment and computers

· High reliability, long lifespan (the lifespan of non-contact photoelectric rotary encoders can reach)1010,000 hours

2 Applicable Fields

IF-05Type digital weir trough head measurement sensor utilizes the standard flow measuring structure, the Parshall flume.VTroughs, other weirs, and their stable water levels----Flow meters used to measure water levels and calculate flow rates. Compatible with various types of flow measurement structures, they are used for real-time detection and measurement of dam seepage flow, as well as for hydrological environmental monitoring, effluent measurement, hydrological surveys, and more.

The output data from the water level sensor is directly transmitted toPCComputers perform calculations, display, and record water level and flow parameters. On a single shielded twisted pair cable, multiple connections can be made simultaneously.32A unit with built-inRS485Water level sensor with output function, enabling computerized group measurement and processing.

This model instrument boasts exceptional sensitivity and resolution (water level measurement resolution is)0.5mmOr higher, with stable and reliable performance, no temperature drift, overcoming the shortcomings of the poor reliability of immersion-type water level sensors and ultrasonic flow meters.

3 Structure, working principle

IF-05The type digital water level sensor is composed of a photoelectric switch with a rotary encoder, measuring wheel, float, measuring cable, balancing weight, still water well, protective cover, etc. The encoder is a full-scale photoelectric switch rotary encoder with ultra-low torque, featuring a stainless steel code disk as its coding component and an imported high-quality photoelectric switch as the reading element.,The shaft on its axis is equipped with a measuring wheel suspended with measuring cables, floats, and balancing weights. All floats, measuring cables, and balancing weights are made of stainless steel and corrosion-resistant plastic, offering excellent mechanical properties and environmental adaptability. The static well of the sensor is a diameterΦ100mm-Φ120mmOur stainless steel precision well is easy to install and can work long-term in severely polluted and corrosive waterways.

The rotary encoder is installed at the top of the still water well, which is mounted in the weir slot. As the water level in the weir slot changes, the float in the still water well drives the measuring cable to rotate the measuring wheel and the photoelectric switch, causing the rotary encoder to rotate, outputting values corresponding to the water level.9-15bitGray code encoded data. The range of the water level sensor is0-250mm、0-500mm、0-1000mm，0-2000mmSuitable for use with various sink types, enabling monitoring of different flow rates.

The water level sensor of the open channel flow meter, along with the stilling well, can also be installed on the shore and connected to the measuring flume via a connecting pipe.

4 Main Technical Parameters of Instruments and Sensors

4.1 Water Level Sensor Main Technical Parameters

Range:0-250mm、0-500mm、0-1000mm、0-2000mm；

Resolution:1mm；

Measurement Accuracy:

Output Code: Gray Code9bit-15bit；

Output Format:OCDoors30mA/30VDC；

Power Supply:12V/24V DC；

Communication Interface:RS485Optional4-20mAOptional;

Temperature Range:-25℃ ～ +80℃；

Relative Humidity:95％（40℃）；

Sensor Size: Φ90×100；Φ90×70；

Well Logging Size: Φ100～Φ120。