Dongfang Wanhe WH311-300 Library No.: WH2 pressure sensor

Groundwater level and water temperature automatic monitor Model: WH311-300 Library number: WH20216311 Water level automatic monitorIt is designed to cope with harsh measurement conditions. The sensor uses advanced microprocessing technology to compensate for all-round linear errors and temperature errors to ensure that the measurement results meet high accuracy requirements;wh311The probe adopts fully potted anti-condensation technology and a safe and reliable double sealing device.The design,fully welding process and solid stainless steel shell ensure the long-term reliability and permanent airtightness of the product; the signal transmission module adopts a transient voltage resistant protection circuit to ensure that it can still operate freely in harsh surge voltage environments; The cable seal adopts a reinforced cone plug sealing process to ensure a service life even when subjected to large mechanical loads during installation and long-term use.

The IP68 waterproof rating greatly improves the waterproof performance of the product (a 1,000-meter-range deep well in a geological bureau has been used without failure). Vanhe Instruments promises that the water level probe will be replaced with a new one within three years. Wh311 water level gauge is a fully sealed submersible diffusion silicon liquid level measuring instrument.

This type uses a piezoresistive pressure sensor transmitter that has undergone long-term stability and reliability testing. The dedicated circuit is installed in a stainless steel shell to form an integrated structure and standardized signals,which provides convenience for on-site use and automated control.

The special cable is sealed with the housing and can be used in liquids compatible with the transmitter structural material for a time. In addition,we take into account the fact that the length of underground water level meter cables is generally long. The special gas conductive cables we use for underground water level meters use military factory-level armored steel wire cables,which are 30% thicker than ordinary cable steel wires,ensuring that The cable is not easily damaged during use.

The Wh311 water level sensor uses Texas Instruments (TI) original chip amplifier circuit,which greatly improves the stability of the sensor signal output. Users can use a 2X1.5 square shielded cable to extend the water level probe from the fire water tank (pool) to the control center to connect to the WH6 liquid level display meter. The high-performance chip greatly weakens the signal attenuation,and the transmission distance can reach 5 kilometers.

The WH311 water level meter uses the WHSENSORS core motherboard,which allows the sensor to reflect changes in liquid level at any time. The test data from the calibration certificate of the Institute of Metrology proves that the error is less than 0.009mA,that is,the liquid level error is less than 0.01 meters.

As shown below: