Application Notes

Defining the Problem: A natural gas pipeline has a remote pumping station a mile away and they need to be able to adjust the pumping rate without driving to the site. The pump is controlled by a variable frequency drive. Running control wire is too expensive and also undesirable due to potential surges from lightning…

Defining the Problem: A chemical manufacturer has various tanks of substances which it combines to manufacture their product. The tops of these tanks are a UL rated Class 1 Division 2 hazardous area. They use four-wire, non-contact level sensors, and want their operators to be able to read and adjust the tank levels either automatically…

Defining the Problem: A local public utility district has a freshwater collection tank that sometimes fills rapidly and other times slowly. At times the main pump could not keep up and a backup pump must be turned on to keep up with the incoming water. The problem is that with the primary pump running most…

Defining the Problem: A manufacturer of specialty furnaces needs to monitor their temperature control, provide warnings/alarms for temperature near fault conditions, and document consistent temperatures throughout the sintering process. System Requirements: The solution must take a signal from a thermocouple, have a display for real time visual feedback, record temperatures throughout the batch production for…

Defining the Problem: A water treatment facility has differential pressure transmitters that output a 4 to 20mA signal to their SCADA system. They also want to be able to display the flow rate to the operators working nearby but the signal from the differential pressure transmitter is nonlinear. System Requirements: The panel meter must be…