Here is a 4-20 mA In/Out Analog Mux with Cascade option. This is a simple circuit i designed to make a Automation System within a budget. This takes 4-20mA from
Here is an ancestor of the product in the earlier post. It is a Process Scanner and Indicator. There was no control, but there were individual alarms for each channel.
Proportional Controllers not only save energy, they can give a controlled finish or treatment to a job. An on-off controller or thermostat limit protection has to be used in series,
This was one unique custom design made. It was Multi Zone Scanner controller. The Instrument had a Analog Multiplexer with a Synchronous Sample and hold, as the analog value was
Wet bulb and Dry bulb Digital Humidity Meters or Hygrometers are accompanied with a chart for evaluating % RH. This chart is in PDF format below. Table of Relative Humidity
Pressure is the next most important parameter after Temperature. In Hydraulics and Pneumatics, the measurement, indication, control and logging-charting of pressure is indispensable. Popular Pressure Sensors are based on either
This is a way by which you can monitor the level of fluids like water in a tank. Based on data from the sensor you can control things like solenoids