Multizone temperature control

December 2004 Temperature Measurement

An OEM that builds extruders wanted to integrate multiple PID control loops, along with the rest of the machine controls, into a single operator interface. Historically, the builder would either use standard panel mount controllers, or controllers equipped with serial communications. While this did allow the integration he desired, it was expensive and redundant, and took unnecessary panel space. The Red Lion dual loop modular controller offered a low cost, easy to integrate solution.

The typical extruder that the OEM builds has eight heat/cool zones that need to be controlled. It also wanted to monitor a 4 to 20 mA pressure sensor that measures barrel pressure. Four dual loop controllers were used to control the eight temperature zones, and a fifth module was used to measure the pressure. Windows-based Crimson software allowed the customer to custom-configure each modular controller to the individual tasks.

To tie all of the machine information together, the customer chose a G3 series operator interface. The G3 can communicate via five different protocols, allowing it to act as a bridge for the PLC and motor drives included in the system. Using the Crimson 2 programming software, the customer created an intuitive interface that allowed the operator to view and control any system parameter.

For more information contact Trevor Vine, Micropower Instrumentation, 011 462 1106, [email protected], www.micropower.co.za

Further reading:

Is the HVAC market in SA missing the big picture?
Iritron Temperature Measurement
The South African HVAC market is currently grappling with a pervasive mindset that prioritises lowest cost over value for money and technical excellence. However, this approach overlooks the significant benefits that come with investing in high-quality HVAC solutions.

Read more...

---

Temperature monitoring in dairies
ifm - South Africa Temperature Measurement
Milk is a natural product whose processing requires precise temperature settings. The Berchtesgadener Land dairy uses innovative temperature sensors from ifm in key process areas.

Read more...

---

Measuring temperature, relative humidity and dew point temperature
Senseca Temperature Measurement
Senseca’s range of passive or active transmitters measures temperature, relative humidity, and dew point temperature.

Read more...

---

Three ways to conduct thermal inspections
Comtest Temperature Measurement
There’s no universal solution for all infrared inspections with a Fluke thermal camera, also known as a thermal imager. You need to match your method to the type of equipment you’re inspecting and the level of detail you require.

Read more...

---

New temperature relative humidity and barometric pressure transmitter
Senseca Temperature Measurement
ENVIROsense, a new environmental temperature, relative humidity, relative humidity and, optionally, barometric pressure transmitter has been launched by Senseca, a leader in the design and manufacture of monitoring and measurement instrumentation.

Read more...

---

The role of alarm annunciators in temperature monitoring
Omniflex Remote Monitoring Specialists Temperature Measurement
Director at alarm annunciator specialist, Omniflex explores the importance of alarm annunciators in temperature monitoring applications, drawing on examples from different industrial settings.

Read more...

---

Increased safety and control in steel plants
Temperature Measurement
AMETEK Land has helped a major metals industry plant designer to enhance safety, control, and efficiency in steel plants.

Read more...

---

Industrial water heating solutions
Temperature Measurement
Electrolux (Kwikot) Industrial’s massive water heating tanks are making a name for themselves beyond local borders.

Read more...

---

Optimising steam management for boiler efficiency
Endress+Hauser South Africa Temperature Measurement
Endress+Hauser understands the daily challenges and demands placed on energy and utility managers across the spectrum of steam generation, distribution and consumption activities. Its global team is committed to working with its partners to overcome these complexities, and particularly those that aim for a safe, economic and sustainable sitsce of steam energy production and delivery.

Read more...

---

Temperature to IO-Link module
ifm - South Africa Temperature Measurement
IO-Link has become established as an intelligent interface for integrating smart sensors and devices in various industries. With the new ifm IO-Link measuring modules, up to four temperature probes can be connected to an IO-Link master port in two-, three- or four-wire configuration.

Read more...

---