Logger keeps yeast creamy fresh
A
Status Instruments product story
Edited by the Engineeringtalk editorial team
May 28, 2002
A multisite trending and data logging system is ensuring that the customers of Dublin based Yeast Products keep their cream yeast in tip top condition prior to use.
A multisite trending and data logging system from Irish instrumentation specialist PJ Boner is ensuring that the customers of Dublin based Yeast Products keep their cream yeast in tip top condition prior to use.
Yeast Products was established in 1985 and operates from a specially designed high technology factory at Finglas near Dublin.
The company introduced the concept of cream yeast to the Irish Market, supported by technology shareholder Proofex, who pioneered the development of cream yeast for use in automated baking processes.
Yeast Products now supplies its yeast to over 40 major bakeries throughout Ireland.
Correct storage conditions are vital to the effectiveness of the yeast and to ensure these conditions are maintained, Yeast Products supplies special temperature controlled 12000 litre mixer vessels to their customers to store the consignment stock of yeast.
PJ Boner and Company, which has over 20 years experience in the Irish Instrumentation Market, has worked closely with Yeast Products in the design and implementation of a centralised monitoring system which continually checks storage conditions at the remote sites.
On each vessel, temperature and pressure transmitters, supplied by one of its principals, UK based Status Instruments, measure the temperature and the level of the stored yeast.
This information together with the data from speed sensors on the agitator and outlet pump is stored in a Status Instruments SL707 data logger.
This compact unit can handle up to eight separate voltage or current inputs.
The SL707 can be set to log periods from 8 seconds to 8 hours and can store up to a maximum of 1 million readings.
The unit is self-powered with a long life battery, which means that data are continued to be stored even in the event of power failure at the plant.
Fully Windows compatible software allows data to be displayed in graphic or spread sheet format.
Each system is connected via a modem link to Yeast Products' central offices in Finglas.
Cream yeast must be stored at a temperature of 2C and any variances from this results in a rapidly deterioration in quality.
The system allows tolerance limits to be set so that when the level goes low or the temperature goes above 2C, the remote site will automatically dial up the central PC and flag up an alarm message.
As a backup, where appropriate, the call can be transferred to a designated mobile phone.
An engineer can then immediately access the specific vessel through the PC or laptop computer and decide on the course of action to take.
The pressure transmitter continually monitors the level of the yeast and the stored data is used to track usage trends.
This allows Yeast Products to plan and optimise their delivery schedules whilst still ensuring that customers do not run out of this vital ingredient.
As Pat O'Driscoll, at Yeast Products concludes, " We're very pleased with the system.
In the past our customers usually only found out about problems with the yeast when it was too late.
The new system ensures that we can deal with any problems swiftly and efficiently whatever the time of day or night.
In parallel, the usage trend data allows us to optimise our delivery to particular site and there are distinct savings in transportation costs".
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