Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Signal Transmission - Standards

Standard signals used for transmission from sensor to controller.

Standards used for signal transmission from sensor to controller in industrial processes:

Signal Transmission from Sensor to Controller
Pneumatic pressure	3 - 15 psig, 20 - 100 kPa
Voltage	0 - 10 V (or 0 - 5 V)
Electric current (direct current)	4 - 20 mA

More and more sensor to/from controller transmission are now done with "smart" equipmement and wire/wireless data communication.

Draw HVAC diagrams online with this Google Drive drawing tool.

Devices - sensors - communicating physical properties to observers.

Schematic illustration of a functional relationship between piping, instrumentation and system components.

Draw P&ID diagrams online in the browser with Google Docs.

The Process Flow Diagram (PFD) is a schematic illustration of a system.

Common terms used in the process control terminology.

Proportional, integrating and derivative process controllers.

ISA process instrumentation codes - and combinations.