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Testing Dishwasher Performance Using Modular Data

by:JVTIA     2020-06-07
Delphin TopMessage Customizable Real-Time Systems CHESTERLAND OH-January 30, 2012 CAS DataLoggers recently supplied the data acquisition solution as a customer operating the test laboratory to gauge the performance of residential dishwashers. The lab contained over 40 test bays for testing lot of dishwasher models. Specialized equipment in these bays monitored water consumption and water temperatures of the dishwashers during the various washing cycles. Temperature measurement was conducted with type K thermocouples and the consumption was measured using flow sensors with pulse signal outputs. Test leads searched for a high-speed data acquisition system capable of interfacing with these sensors with highly accurate measurements, fast signal processing capability, and intuitive, simple configurability and ins and outs. The customer planned on integrating additional test bays requiring more inputs in future, and therefore required a modular system so which could upgrade the computer easily with more input and output channels when the importance arose. The customer developed an integrated application using Delphin TopMessage data acquisition and control systems, moves a control cabinet in the test laboratory, in combination with ProfiSignal Basicsoftware. The TopMessages' compact designs ensured an easy fit into the cabinet, with your measurement systems consisting of 1 TopMessage serving as a master as well as 3 TopMessages in the role of slave extensions. The client was offered a variety of specific modules, deciding on 4 ADVT modules enabling Type K thermocouple measurement and 4 DIOT modules allowing pulse/flow rate measurement to determine the actual consumption. The thermocouples and flow sensors were connected in order to the devices with no need for any intermediate converters. The Delphin system architecture consisted of a PC running ProfiSignal connected via LAN with the master TopMessage which connected to the 3 slave TopMessages via CAN-bus. 40 flow sensors with a pulse output of 0-1000 Hz were connected via DIOT modules to one in the slaves, and 40 type K thermocouples measuring the water temperature via ADVT modules were connected one more slave. The stand-alone TopMessage devices formed a modular and scalable system with high accuracy and up to 24-bit resolution with true differential inputs as well as 2 slots for analog or digital input or output cards and a CANbus for expansion modules. Housed within industrial-grade enclosures, the TopMessages also featured signal conditioning, an Ethernet interface to connect to a PC for data analysis, and screw terminals for secure friendships. Test engineers found the Delphin ProfiSignal process visualization and monitoring software in order to understand use, so much so that the customer was able to advance the whole application themselves. The powerful software channels configured inside the TopMessage calculated the flow rate and overall water consumption for board level. The information storage was triggered for every bay individually through command buttons inside the application, and the data of every test cycle was recorded onto the 1GB TopMessage internal memory with a capacity of 128 million data records. Additionally, the data of each test cycle was archived automatically any database with the ProfiSignal application by investing in the built-in recorder function. The application was organized in 7 bays, and each one bay could be operated individually by applying the corresponding start/stop buttons. With the overall control screen, the operator saw the status of each bay along while current water consumption. Using additional navigation buttons, the engineers were able to open a trend diagram to look into the consumption, flow rate and temperature--all displayed in an online trend. The customer realized several advantages after installing the Delphin TopMessage data acquisition systems in their test lab. Initially the customer was offered an associated with I/O modules decide on the best ones for their application, with different modules available for a range of channels and sensor types. The TopMessages made to easy install, any so that first test run was performed soon after installation. Likewise, the configuration of all the temperature sensors was equally hassle-free since no additional converter and signal conditioning unit was need. Another major benefit was the TopMessage's modular design which enabled future expansion of the testing program with additional inputs and outputs. All in all, plant engineers found that the TopMessage data acquisition system was both dependable and highly accurate, and operators relied on the user-friendly ProfiSignal Basic software for a full automation and reporting solution. ProfiSignal also set up convenient online mimics in order to temperatures in each bay, as well as on/off status, with an operation similar to Windows Explorer. Additionally, a network interface enabled the TopMessage systems to be utilized in a TCP network or to be directly connected with a PC workstation or laptop/netbook computer.
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