Dwyer Instruments Distributor – If Looking To Acquire Pressure, Circulation And Level Transmitters, Switches Or Mercoid Gauges, Take A Look At This Online Store For Offers.

Open channel flow monitoring is surely an old technique for measuring water flow rates in irrigation channels, streams, and storm water systems. The method is also found in wastewater processing for monitoring the effluent discharge. In the majority of applications for open channel flow, weirs and flumes are used. For those of us not familiar, weirs and flumes concentrate the flow right into a known cross sectional area, relating an accurate level reading to a accurate flow rate. The height in the water from the channel, going over the weir or flume, is directly proportional to the flow rate.

Conventional methods of measuring the amount through weirs and flumes were through float sensors and measuring tapes, that happen to be maintenance nightmares. Mechanical floats might be disrupted by debris and sediment buildup. The very first approach to monitoring flows was by using a “weir stick” or ruler markings, this required personnel to determine the readings in the location daily, weekly or monthly. Both conventional methods might have quite high hidden costs in maintenance and labor charges.

That old means of dwyer instruments distributor are getting behind us. With all the increase labor cost and reduce in electronic sensing cost, new ways of monitoring open channel flows are becoming more prominent and price effective. These new methods are by way of ultrasonic and hydro-static pressure sensing

Dwyer’s new ULF Series Ultrasonic Flow Transmitter is the best solution for monitoring open channel flow. The ultrasonic signal in the ULF offers a non-contact measurement of flow eliminating the specified upkeep of older methods. As previously mentioned, typical types of monitoring open channel flow were at risk of debris and sediment buildup. This is simply not the truth together with the ULF. Additionally, the four to 20 mA transmitter output can feed returning to the local panel meter, telemetry system or SCADA network for remote flow monitoring as an alternative to checking the reading locally. The ULF includes programming in excess of 100 different flume and weir sizes and directly converts the level measurement to a flow output. Using the unit?s push button programming and native display, setup is effortless and provides a nearby flow reading.

Another new technology that may be utilized is hydrostatic pressure sensing from the level within the channel. Dwyer’s PBLT2 Series Submersible Pressure Level Transmitter is great for this application too. Through careful positioning, the sensor can provide an exact 4 to 20 mA transmitter production of level reading depending on height of water (pressure). Even though placed straight into the channel, the “bird cage” design and enormous diaphragm turn this almost impervious to 05dexlpky buildup or debris fouling.

If utilizing a level transmitter that will not include software correlation of level to circulate like the PBLT2, Dwyer offers the new APM Series Panel Meter. Smart software inside the APM features a weir and flume exponential linearizer enabling the system to convert a level transmitter input to channel flow rate for both the local display and the output options. The APM may be configured using a transmitter output for flow, 2 or 4 switch outputs, and serial communications for remote monitoring of the flow rate. As most applications are usually in outdoor conditions, the panel meter?s LED display is designed to be seen even under the brightest sunlight as well as the front face is weatherproof (NEMA 4X) to handle any climatic conditions. Optional ready-made weatherproof enclosures, Series PME, are also offered.