CAS Provides Data Acquisition Solution to Test Dishwasher Performance

CAS DataLoggers has offered the data acquisition solution to a customer having a test laboratory, which tests the performance of dishwashers in homes.

Delphin TopMessage Dishwasher Test System

More than 40 test bays, with specific equipments, are present in the lab to test dishwasher models. Temperature and usage of water in dishwashers was monitored by these equipments during various washing cycles. Flow sensors measured the water utilization and type K thermocouples measured the water temperature. Test leads looked for a data acquisition system with high-speed, which can be possibly interfaced with these sensors. Integration of additional test bays was planned for the future system. A modular system was needed to upgrade the system.

An integrated application was built with Delphin TopMessage data acquisition and control systems combined with ProfiSignal Basic software, which was installed in the laboratory’s control cabinet. The compact designs of the TopMessages can be fitted in the cabinet, through the measurement systems having 1 TopMessage as a master and 3 TopMessages as slave expansions. Intermediate converters were not necessary to directly connect the flow sensors and thermocouples to the devices.

The Delphin system design included a PC running with ProfiSignal software. Forty flow sensors with 0-1000 Hz pulse output were connected to one of the slaves through DIOT modules, and 40 type K thermocouples to another slave through ADVT modules.

A scalable and modular system was formed by the TopMessage devices. These devices formed a CANbus for extension modules and two slots for digital or analog input or output cards. An Ethernet interface and signal conditioning were featured in this TopMessages.

In each bay, triggering of the data storage was done using command buttons. The TopMessage internal memory recorded the information of each test cycle. These data were stored automatically to a database using the integrated recorder function. A trend diagram was opened by the engineers using navigation buttons to observe the temperature, consumption and flow rate.

Source: http://www.dataloggerinc.com/

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