CAL Temperature Controllers Enhance Quality of Medical Research

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CAL temperature controllers from West Control Solutions are helping laboratory OEMs to provide the best possible conditions for research into the treatment of diseases such as cancer.

In particular, the CAL 3300 temperature controller is providing outstanding service in controlling the performance of an incubation chamber for laboratory equipment manufacturer, Solent Scientific.

37° Climate Chamber

Solent Scientific and the Application

The 37 Climate Chamber from Solent Scientific is an acrylic enclosure integrated with a powerful microscope, which is used to conduct prolonged studies of living cells, usually involving time lapse image capture. These enclosures can also exclude light when working with low level light microscopy. Warm, filtered air circulates within the enclosure from a heater unit and the precise temperature within the chamber is controlled by a CAL 3300 unit.
With temperature control a critical feature of the incubation chamber, Solent Scientific turned to West Control Solutions, which has established a strong reputation across industry for providing exceptionally reliable temperature controllers that perform over long periods within extremely tight tolerances.

Temperature Control Requirements

CAL 3300 Temperature Controller & 37° Climate ChamberOrry Dugdale, Director, Solent Scientific, explained further how the 37° Incubation Chambers work and why the CAL 3300 provided an ideal solution for temperature control.
“When we built the incubator, we were trying to create a cell culturing system that accurately replicates conditions within the human body, and that means maintaining a constant temperature. The temperature requirement for the chamber is 37° degrees, + 0.1°C. The temperature must be accurate and within that tight tolerance. The CAL 3300 is proven to be capable of delivering that, day after day, year after year.”

Selecting the Right Temperature Controller

The CAL 3300 is easy to operate, with a large 4-digit green LED display clearly showing the-current temperature, and a parameter security-locking feature that prevents the operator from inadvertently changing the settings.
The CAL 3300 brings ease-of-use to the customers of OEMs such as Solent Scientific by offering integrated auto-tune PID control (Proportional Integral Derivative). This means that users do not have to programme parameters manually, a task that requires a certain amount of technical knowledge, and reduces set up time to a few minutes.

Using PID Control

The PID facility is further enhanced by a unique dAC (Derivative Approach Control) function, which prevents control temperature overshoot during warm up. CAL has developed dAC functions outside of the proportional band during warm up by widening the proportional band. The temperature rise is slowed during this period and when the temperature falls within the original proportional band, the controller reverts back to normal operation. The result is a steady temperature rise with minimal overshoot, which can be critical when maximum temperatures must not be exceeded.
West Control Solutions has also provided Solent Scientific with a cost-efficient method of logging temperature over a period of time, a facility that was required in order to test the operation of each incubator. By using the communication software for real-time logging of CAL controllers, Solent Scientific could prove that the temperature within the incubator was kept to + or – 0.1°C over long periods of time, which is well within the tolerances required for the application. This solution avoided the considerable cost and development involved in employing SCADA (Supervisory Control And Data Acquisition) packages.
The 37° Incubation Chambers are making a major contribution to the life sciences, with sales to universities and research institutes across the globe. “Imperial College in London was our first customer in 1997,” Orry Dugdale explained. “When I visited London in 2012, the chamber was still working and I can think of no better recommendation for CAL controllers.”

Power Generation – Combustion Control

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OxyFire Sensors: Typically used in a coal-fired power boiler, the high temperature, in-situ oxygen sensor is generally installed in the boiler water-wall, above the nose arch and above each of the burner banks. This configuration allows the boiler operators to center the fireball in the radiant zone and “balance” the boiler.

Typically installed above the slag line, the sensors give the boiler operators a unique perspective on the combustion process, eliminating the typical “air infiltration” that confuses “low temperature” sensors located in the back pass.
Benefits from using Marathon Monitors’ Combustion Optimization System to “trim” the draft are:

  • Balanced boiler – Centering the fireball
  • Minimizing NOx formation
  • Reduces over-all maintenance costs
Providing the operators with this type of information allows them to do their job more efficiently, eliminates CO (carbon monoxide) pockets, and helps in achieving “lowest cost” megawatts.

Oxygen Sensors: Oxyfire High-Temperature Series
 
oxyfire_oxygen_sensor
 
 
 
 
 
LOROX Low-Range Temperature Series
LOROX Sensors: Typically used in fossil fuel fired power boilers where the slag line is very high. These sensors are often installed in the back pass section where temperatures are too low for Oxyfire sensors to operate. Response time is still very fast and the LOROX is easily maintained without removal.
lorox_in-situ_sensors

 
 
 
 
Instruments: VersaPro – Oxygen Setpoint Controller / Monitor
versapro_control_temperature

Application Bulletin                     Installation

Centralized Control & Monitoring eliminates operator rounds, improves furnace performance!

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UPC group
Last month UPC put an end to clipboard rounds for a south central US energy equipment supplier. The company who depended on operators to check local furnace readings and record data manually opted instead for a major upgrade of its heat treating operations that included new multi-furnace controls and a more efficient data collection setup.
The furnace control systems equipped with Protherm 400 controllers manage twelve furnaces – continuously controlling, monitoring and archiving furnace and oil temperatures, carbon, as well as maintenance functions such as agitator and fan motor currents, and quench transfer time. To maximize data reliability and meet strict data retention requirements, data logging is performed both locally at the furnace control panel by the Protherm 400s and at a central location by the Protherm 9800, a production management software that gives users online access to real-time data from the furnace control systems. Users can also view and analyze historical data from each furnace, and monitor and address alarms.

Carburizing_Solution

About the upgrade: Furnace control systems incorporate UPC Protherm 400s, KD-7 paperless chart recorders, and RE-19 controllers.

Baumer Hygienic Sensors for Food Processing and Packaging

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To meet the demanding requirements associated with processing and packaging food products, Baumer offers a broad portfolio of photoelectric, liquid level, inductive, and ultrasonic hygienic sensors designed to withstand chemicals and/or high pressure washdowns.
For volume measurement in meat and cheese processing, Baumer’s OADR 20 series of laser sensors provides a high degree of accuracy and resolutions from 5 µm. Encased in a stainless steel housing, these sensors feature Baumer’s unique proTect+ impermeability design to ensure compliance with protection class IP68/IP69K, even after repeated temperature cycles.
Used to detect food items or packages on conveyor belts, Baumer Series 14 hygienic photoelectric sensors are available in standard models and in a version featuring SmartReflect™, an award-winning light barrier that operates without a reflector and has a sensing distance of 800 mm.
In liquid level measurement applications, Baumer CleverLevel sensors are outstanding alternatives to vibrating fork switches. Certified according to FDA, EHEDG, and 3A guidelines, these sensors offer 1.4404 stainless steel housings, matching PM023 weld-in boss, and PEEK plastic sensor tips that protrude only 18 millimeters into the container or tube to avoid flow blockage. LBFS versions feature standard output configurations and operate from -40 to +115°C, while LFFS versions withstand operating process temperatures from -40 to +200°C and are programmable using a separately ordered Flexprogrammer.
For presence detection in food processing machinery, the Baumer IFBR and IFRR series of inductive sensors feature corrosion-resistant materials, flush connections and smooth, continuous or sealed surfaces. The sensors withstand increasingly frequent and intense cleaning and disinfection cycles, and are Ecolab-tested and EHEDG-certified.
Designed to handle challenging food  packaging applications, Baumer’s UNAR 18 series of ultrasonic sensors feature stainless steel housings with a parylene coating for increased chemical resistance. The switching output version enables the sensor to detect the presence of items such as cups or bottles, while the measuring version of the UNAR 18 is well-suited for non-contact level measurement and control in filling machines.

Baumer Hygienic Sensors for Food Processing and Packaging

Stahl EX Cabinet Control system for Hazardous Locations – Worldwide installations

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For more than 80 years R. STAHL has fulfilled a unique role in protecting lives and property in harsh and hazardous (classified) locations.
This Stahl EX cabinet installation build included a great many components that where build to the customers specifications and designed by Stahl for international use.  Let us build one for you!  Call +1 800 699 0290.
cabinet build 2012