By creating a special vacuum control function for its established Model 2704 controller, Eurotherm has demonstrated that complex processes like those found in vacuum heat treatment furnaces may use a single combined function controller to save cost and space. This multifunction facility will also be useful for similar vacuum related processes such as freeze dryers, autoclaves, semiconductor furnaces and CVD furnaces.
Complex heat, pressure and vacuum cycles, such as those found in advanced heat treatment furnaces, usually require the use of high specification programmers or PLCs. In such cases, the temperature control function alone may be handled using one or more temperature controllers, either in cascade or single loop mode. Sometimes where vacuum bags are used the same controller can also regulate pressure.
In addition to separate temperature and pressure control facilities, systems of this type will usually have a dedicated vacuum control unit, designed and built to traditional standards, adding considerable cost and bulk to the equipment.
The introduction of the 2704 vacuum option has enabled Eurotherm to integrate both the temperature and vacuum control functions into one unit, providing both OEMs and heat treatment specialists with a more economic and compact control solution than they have available at present. Removing the need to buy separate expensive vacuum controllers can reduce the size of a system control PLC, or in some cases remove it completely. Eurotherm claims that the 2704 is the first DIN format temperature controller to offer this feature.
The use of a single 2704 in this type of application can offer clear advantages in processing efficiency. The unit provides a more informative display than most traditional vacuum control units, and in addition, it provides a smooth switchover function between high and low vacuum levels. This function is not generally available with traditional designs of vacuum controllers, a weakness that has been known to cause problems within some heat treatment processes.
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...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...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.
printer friendly version