delabs Technologies News

Design Documents

Discussion of four Channel Alarm.
Four Channel Temperature Alarm.
RTD Pt-100 Four Point Alarm.
Timer and Counter Modules.

Source Files Orcad Format

RTD Pt-100 Four Point Alarm - 90001.zip
Timer and Counter Modules - 90002.zip

Block Diagram :

Zoom ImageResources :

Watlow heating elements, industrial heaters.
Temperature Sensors.
NPL Beginners Guides to Measurement - Temperature.
Analog Multiplexer
PT100 sensors
Positive Analog Feedback Compensates PT100
Accurate Electronic Stop-Watch
40MHz Frequency Counter [...]

I will give a simple example for the purpose of understanding and assimilation of the concept.
Consider the Toaster shown in the right, Build a Embedded Internet Interface into the toaster. Then make it Wireless Networking capable. The gadget can also get connected thru Mains Carrier Communication.
Now you build a Webware service, create API’s, Ready [...]

Embedded Systems Design - Embedded.com

Moving beyond PID
Tuning a Proportional Controller
Tuning a PI Controller

Reading the excellent articles above, i was reminded of an incident….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 is to [...]

Automation and Control is the predecessor of Robotics. A Jump Start, Practical and standard reference for Process Control is at at Omega Technical Reference.A Control system is made of Sensors sending acquired data to a Controller which operates Actuators to manage the process in Real Time. Starting from a Bimetal Thermostat to a SCADA, the [...]

Here is is gadget GUI for Industrial Process control, WebApps. The buttons make a sound and Light up internal LED lamps. Power On-Off control, Digital Timer; Start, Reset Scroll and Select are the controls.
Project Page programmable-digital-timer Rev-12 - Add to WebpageI will first make some simple examples with this UI. Then i will try to [...]

Electronic Sensor Circuits and Projects By Forrest M., III Mims Electronic sensor circuits convert light, temperature, sound, and other signals into a form that can be processed by electronic circuits. Learn about solar cells, photoresistors, thermistors, and magnet switches. Then build circuits that respond to heat, pressure, light, and more. This Engineer’s Mini Notebook [...]

This is a RTD Pt-100 Transmitter, It can Convert Thermocouple mV or RTD mV to 4-20 mA Current Transmitter. The part numbers on Circuit and silk screen may not match. But the PCB may be usable. The output is a current source and not a current sink. It goes to a 4-20mA Mux with a [...]