The flowmeter of open channel supports the flow calculation of three kinds of open channel weir, namely right Angle triangle weir, rectangular thin wall weir and basher weir. Flow can be accumulated according to the set conditions, such as low water level =0.05 and high water level =1, i.e. flow can be accumulated when the water level is greater than 0.5 and less than 1. When selecting a standard bushell tank, the effective head range of the corresponding tank type is automatically loaded.

The selection of water weir tank, to consider the size of the channel meteor, water flow in the channel, whether the formation of free flow. Meteor is less than 40L/s, should choose right Angle triangle weir commonly. Above 40L/s, bacher tank should be selected in general. The flow is greater than 40L/s, and the water level in the channel is lowerLarge, rectangular weir can be selected.Conditions permitting, * select the bacher slot. The meteoric relation of water level in the bacher channel is determined by experiments, and the requirement for the condition of the channel is weak. The relationship between water level and flow rate of triangular weir and rectangular weir comes from theoretical calculation.Water measuring weir can be made of glass fiber reinforced plastic. The gap of triangle and rectangle weir is the key size. The surface facing the flooded side should be smooth. The dimensions in the bacher groove should be accurate and the inner surface should be smooth. The throat section is the key size to be more accurate.

NONCON ultrasonic open channel flow meter is working, the sensor is not with current body contact, avoid the canal sewage contamination and corrosion. For measuring sewage flow, it can be more reliable than other instruments. This meter has the data storage function of hour, day, month, year flow and power failure information. It can be checked by the button on the meter. ultrasonic open channel flowmeter is suitable for environmental protection departments to monitor the sewage discharge of enterprises and institutions, and for sewage treatment plants to measure the flow.