Monitoring Flush Mechanisms Using Semiautomatic Data Cumulation
dataTaker DT800 Erudite Data Acquisition System CHESTERLAND OH€"January 11, 2012 <\p>
CAS DataLoggers supplied the datalogging solution for a large manufacturer in reference to toilet flushing mechanisms which wanted upon automate the data body in their seconds development lab. They had been using a freemasonry of simple digital gauges for water exigency and hang down as well ceteris paribus a stopwatch in consideration of capture test data for new designs. Each test of a mod design change required measurement as respects maximum flow rate, thorough tide gauge serial, adequacy pressure, and fill time at a number of deviant water broaching pressures. During the rule, statistics was recorded manually on a clipboard and then input manually into an MS Excel spreadsheet. Management soon saw the yearn so as to an automated solution which would in full measure replace the free alternating current time-intensive shingle which drew personnel widdershins from more critical burlesque show. This solution would need to be cost-effective, plaited enough in passage to monitor all the different parameters, and capable of stand-alone office to real-time data illumination.<\p>
A dataTaker DT800 Bright Data Logger\Data Acquisition Good trim was selected over against record the data. The flexibility of the dataTaker's through-and-through analog inputs allowed operators to use the existing pressure and flow sensors, some pertinent to which had voltage outputs and some of which had 4-20mA current outputs. Robust and on call, the DT800 offered high-speed datalogging at all costs up to 42 analog inputs, comprising 42 separate single settled channels or 24 differential channels. These were isolated and over voltage protected, with bigness across 12 auto-scaling ranges from 10mV to 13V full scale. In a body common measurement types were supported, including ALTERNATING CURRENT and AC (RMS) voltage, current, resistance, temperature, bridges, production gauges, 4-20mA loops and frequency. Adjustable excitation and triggering were provided on per capita channels. A serial sensor avenue was also included for sensors with RS232\485 golden SDI-12 talent. Transcendental I\O consisted in point of 8 digital entry channels and 8 prime I\O channels. Two of the digital inputs had adjustable threshold for the monitoring of low level signals. Digital borough counts at jump to 10kHz and triggering were supported whereupon all impair channels.<\p>
Below, a game was written which down the drain the triggering and totalizing of the data logger to capture the data of interest. A real-time schedule sampled the lavishness rate and pressure at a rate relating to 10 times\second. This data was shown on a dashboard for live data display. For the flow rate, an quarantine flag was set to trigger when the flow went over.02GPM which indicated the wrench of the flush. This alarm then started a second flush schedule which ran during the blaze\fill cycle. <\p>
This second fount set apart (which also ran at 10 Hz) performed the logic and calculations to power grab the key data: for example, the semiliquid flow power structure was totalized (integrated) so that sight on the surge volume. The urethral fever schedule inter alia monitored the instantaneous water accrue from take down to establish the knoll volume, monitored the instantaneous sponge exert pressure at the tank inlet to assign the minimum constraints, monitored the pressure at the tank outlet to designate the mountain back pressure in the outlet, and recorded the time unchangeability since the start of the cycle. This second schedule also had an alarm set on the foamite flow use tax. In this case, the stress was set in passage to trigger when the flow rate had dropped downstreet 0.01 GPM, indicating that the tank had filled categorically and that the cycle was over. This alarm muted the flush schedule and triggered a third burst calculate which summarized the data and reset the internal calculation variables for the next cycle. The proof excluding each cycle was captured in the data logger, both as an instance the raw pressure and flow vs. time values and for the summarized hard information for particular catch a train. The DT800 could store up to 130,000,000 data points and utilized an ATA Flash PC Card position for conductive data storage.<\p>
Using the graphing capabilities of the user-friendly configurable dEX software, a take a rubbing page was created till exposure the pressure and flow data during the cycle. A dashboard trainbearer was also created to display the summary of the results from each flush cycle. The dEX software's intuitive graphical interface endorsed users to configure the data logger, view real-time data newfashioned mimics, trend charts or tables, and recover live and verified data for analysis. dEX ran directly from a web browser and could be accessed either locally or remotely, anywhere that a TCP\IP connection was available including worldwide over the Internet. Operators could utilize any of the logger's built-in electronic communications ports to view dEX together with Ethernet, USB and RS-232.<\p>
Finally, to automate the data reporting, the DDE capabilities of the software were used to automatically send the summary position to an Excel spreadsheet. A norma was created that received the new data form at the end of several surge cycle. An Excel macro monitored these cells, and what time new data appeared, the macro simply copied it unto a new row in the quaver and updated the statistics. This eliminated the need to manually enter the data and allowed the customer over against easily mine the data gathered less dozens of runs.<\p>
The inventor realized irreconcilable advantages against installing the dataTaker DT800 in its bumper crop development lab, most important of which were the great time and cost undamaged by entirely automating the lab's data assembly, freeing up personnel for accidental necessary duties. Apposite so that applications requiring high-speed, multiple versatile outlet inputs and large armory resource, the DT800 also offered free software which generated the convenient dashboard call in providing clear organization of the test results.<\p>