ADS set of 3, Ultrasonic depth, Pressure Depth & Doppler Velocity Area Velocity

Description

This sale is for one
complete set of three
ADS flow monitor sensors.  A
set includes 1 Quad-redundant Ultrasonic depth sensor; 1 Acoustic Doppler velocity sensor; and 1 Pressure depth sensor.
I have many other flow meters for sale including: 10 ADS model 5000AG FlowShark, over 100 ADS Model 4000 meters, and 3-4 sets of flow sensors that fit mod 1500, model 5000 FlowShark or Model 4000.  I will sell individual circuit boards if you need parts for your meters.  E-mail and I will post the parts you are looking for on e-bay.  I have 18 ADS model 3800 cellular modems that connect to the model 4000 meters to make them wireless. All meters were working when removed from the field. I have not re-tested them. If it is not operational within 30-days of receipt, return the item with matching serial number and I will send you a replacement or a refund if another sensor is not available. See my other sales for Hach and Marsh McBirney Area-Velocity flow meters.
The 4000 also includes an enhanced algorithm in the firmware (permanently stored software), which can be enabled by the user, for processing ultrasonic depth that automatically filters out bad signals or erroneous readings due to flow problems or obstructions.  This process produces more accurate data, yields one final depth measurement, and reduces the amount of stored data.  It also significantly decreases the need for manual analysis and editing.  Each time the monitor fires the sensor to take a reading, the algorithm triggers two separate processes.  First, the algorithm automatically determines a set of standards, or range window, for good return echoes.  It accomplishes this by digitizing the analog return signals and firing all 12 transducer pairs 5 times each (60 total firings).  Then, an average is taken of the pairs to determine the range.  The range is set by scanning through the digital data and recording the strongest returning echoes.  A range window is created around these echoes.  From that point forward, the monitor accepts echoes only from within that range and screens out the bad signals. The second process involves applying the standards set by the algorithm in the first sensor firing to process the return echoes and determine the range actually used to record the depth of flow in the pipe.  The monitor takes 32 analog readings for each of the 12 transducer pairs (384 total firings).  The analog signals produce a greater resolution and accuracy.  The monitor applies the range window to each of the 32 readings and then screens out the signals outside of that window (data scrubbing).  It takes intrapair and interpair averages, applies the scrubbing routine again, and produces one final range.  To conserve memory, the monitor stores this single range rather than the four ranges used in the standard design.  However, using the smart depth feature consumes battery life at a higher rate than standard ultrasonic depth.
Area/Velocity A/V, Area-Velocity, Open Channel, Gravity flow meter, ADS, Hach, Marsh McBirney, Flo-dar,  laser flow