Process Control

Industrial Automation and Process Control.

Multi Zone Process Monitor

 Process Control  No Responses »
Nov 272011
 

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.

Multi Zone Process Monitor

This is a original design of mine, obsolete now due to size and technology. The inspiration of the product concept was from a Omega Catalog Item. Even today i use the Omega catalog for inspiration, but i do not design complete products, only circuit sections.

The Omega catalog was introduced to me by the MD of a firm i worked in as a R&D Engineer in my young engineer like days. He used to call me and show a catalog product and ask me if i could build something like that. I would then design it working both at home and office, sometimes even in the night, it was just the enthusiasm or creating something new.

I even built the first Pneumatic Tyre Inflater with the help of the CNC director for that firm, this product won a national award in the nineties. I left the firm on a trivial issue which i never disclosed. It was Exhibition time, many new products were not complete, they asked me to make Mockup Dummy Instruments for demonstration only, overnight. I ran away.

Read more about Control Instruments at my pages here

 Posted by delabs at 11:21 am  Tagged with:

Multi Zone Temperature Controller

 Process Control  No Responses »
Nov 262011
 

This was one unique custom design i made for a Mining Company for Ore Processing. It was Multi Zone Scanner controller.

Multi Zone Temperature Controller

It might have been for a rotary kiln of a large size. Four temperature sensors were connected to the system with brushes just like in a motor. Even the supply to the trasmitters was on the brushes.

The Instrument had a Analog Multiplexer with a Synchronous Sample and hold, as the analog value was coming via the brushes. It had four relays that would turn off or on every scan cycle, depending on the input values. The kiln system was slow it had inertia, so it did not require a fast acquisition for ‘Real time’ as you may find necessary in small Thermal Systems.

This was built with analog and digital chips, no uC in this design. This was because it was a front end controller, there was a risk of a uC system getting stuck. These days, that problem may not be so worrisome, but i am not so sure.

What if the watchdog goes for a short nap?

You can find part of the designs here – Industrial Process Control Circuits

 Posted by delabs at 6:18 pm  Tagged with:

LM335 Cold Junction Compensation

 Process Control  No Responses »
Nov 242011
 
LM335 Cold Junction Compensation

Temperature Sensors like Thermocouples need cold junction compensation as a part of front end signal conditioning, this is done at the terminal block where the Thermocouple wires are terminated. This design has to be more accurate and broad, if the design we make has to work well in both Tropical and Temperate Climate Zones. LM335 Cold Junction Compensation Another Method using a Copper Resistor If wires of two dissimilar metals are joined at both the ends and the junction formed at one of the ends, is heated more than the other junction, a current flows in the circuit due to [Read More ....]

 Posted by delabs at 7:46 pm  Tagged with:

Analog Devices – Process Control

 Analog Design, Process Control  No Responses »
Oct 312011
 
Analog Devices - Process Control

In my early learning/building days 80s/90s, Chips and Hybrids of Analog Devices and Burr Brown were very expensive and their performance was unquestionable. They made building sensitive and precision instruments easy for an Instrumentation design engineer. Process Control & Industrial Automation – Analog Devices Another brand that was good/expensive for analog was Datel-GE. Another GE company called Intersil made the best chip-solutions with cmos. They not only worked well, they were also affordable and had low power consumption. Isolated 12 bit Voltage input, using AD8275, AD7920, ADR392 to measure +/-10v ranges. Includes Power Management solution. Programmable Logic Controllers – Distributed [Read More ....]

 Posted by delabs at 6:01 pm

wiSeries from Newport – Wireless Scanner Controller

 Process Control  No Responses »
Oct 202011
 
wiSeries from Newport - Wireless Scanner Controller

Wireless monitoring and control system features meters and scanners compatible with a large and growing number of NEWPORT wireless sensors: wiSeries from Newport – Wireless Scanner Controller The new NEWPORT wiSeries wireless monitoring and control system provides local monitoring and control, along with remote Web-based monitoring of temperature from thermocouples, RTD’s, and semiconductor sensors Wireless Inputs: Thermocouple and RTD Temperature Easily Configure through your Web Browser Ethernet and Embedded Web Server (standard) Newport Electronics – Instrumentation

 Posted by delabs at 4:07 pm

Industrial control and Networking – Freescale

 Process Control  No Responses »
Oct 192011
 
Industrial control and Networking - Freescale

Wired and wireless industrial communications protocols and human machine interface. Motorola Semiconductors became Freescale. You may recall that some rugged Mosfets, Bridges and Drivers were developed by Motorola Semiconductor. The Factory Automation have the resources reference to integrate this expertise of high-reliability electronics into your process control systems. Industrial control and Networking – Freescale Battery-operated mobile robots, to high-performance processors that control leading factory robots and vision systems. Control and motion in service robots for dangerous, strenuous or repetitive tasks (handling warehouse inventory, assisting nurses, security,construction, mining, industrial cleaning, waste handling, firefighting, rescue)

 Posted by delabs at 3:50 pm  Tagged with:

Wolf Automation – Product Applications

 Process Control  No Responses »
Oct 172011
 
Wolf Automation - Product Applications

Good application examples of automation and automation components for industrial and other areas. Wolf Automation – Product Applications Basic Automation Block can be a Control panel with many electrical components and wires/cables, Controllers, Actuators and Sensors. Actuators are like – AC variable frequency drives, Speed controls, Industrial Automation inverters, DC Drives, Servos, Solenoids, power supplies, and motors, Wolf Automation – Industrial Automation Distributor Electrical Control Panel Parts like – terminal blocks, circuit breakers, enclosures, switches, solid state relays, wiring duct, power distribution blocks. mercury relays and fuseblocks. Sensors and encoders like infrared sensors, photoelectric sensors, Thermocouples, Tacho Generators, Proximity Switches, [Read More ....]

 Posted by delabs at 4:04 pm  Tagged with:

Web Studio – SCADA Open HMI Software

 Process Control  No Responses »
Sep 092011
 
Web Studio - SCADA Open HMI Software

Using a browser from any Thin Client PC or Tablet view Status, Annunciations, Alarms and monitor online history data. Visualize data for Analysis or Tuning. Monitor real time process parameters to optimize the plant production. Now plants have to be energy conscious and keep in mind the environment health, like air and water. Most important is a consistent yield of a job which is within stated quality and reliability. Worker/Plant safety is also a part of process quality and cost effectiveness.. Web Studio is a powerful HMI/SCADA software Some Nice Features Security: Multi-levels of application security. Easily restrict application access. [Read More ....]

 Posted by delabs at 10:38 am  Tagged with:

Interface a PC to Measure or Control Temperature

 Data Interface, Process Control  No Responses »
Aug 242011
 
Interface a PC to Measure or Control Temperature

How to Use Your PC to Measure Temperature Thermocouple, RTD, Temperature monitoring is central to the majority of data acquisition systems, be it to save energy costs, increase safety, reduce testing time…whatever your reasons, you will need a device to measure the temperature – a temperature sensor. Thermocouples, resistance temperature devices (RTDs), thermistors and infrared thermometers are all types of temperature sensor. Which you choose depends on factors like your expected maximum and minimum temperatures, the accuracy you need and your environmental conditions. 752-RTD: RTD Resistance Temperature Measurement, Digital I/O, Counting, Analog Output Measure temperature using RTDs or Pt100 sensors, [Read More ....]

 Posted by delabs at 4:04 pm
 Older Entries
© 2011 delabs Technologies Suffusion theme by Sayontan Sinha