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Argo
ArgoArgo is software for controlling emissions into the atmosphere from industrial plants conforming to DPR [Presidential Decree] 203 of 24-5-1988 and DM [Ministerial Decree] of 21-12-1995.
Following the course imposed by presidential decree no. 203 of 24 May 1988, on 21 December 1995, the Minister of the Environment issued the "Rules and Regulations of the methods for controlling emissions into the atmosphere from industrial plants".
Following an in-depth study of the various regulations on the subject, Argo was born and grew up - the first software able to control the values of emissions into the atmosphere according to the regulations.
Compliance with regulations
The regulations foresee a certain flow of information which Argo strictly implements.
The program acquires the measurement of the individual sizes at appropriate intervals from the instruments.
All the values acquired within one minute are averaged to produce the "elementary datum", also consisting of the validation code and status of the plant, established according to the process load of the plant.
After one hour, the valid elementary data are in turn averaged to generate the "hourly datum". Again in this case, certain validation algorithms are applied by Argo including assessment of the status of the plant.
The behaviour of Argo varies at this point, depending on the elaboration selected.
The ministerial decree of 21 December 1995 foresees a series of alternative elaboration ratified by previous decrees. In detail, they are as follows:
  • Daily Average according to DPR 24 May 1988 no. 203
  • Moveable average of 7 days according to DPR 24 May 1988 no. 203
  • Monthly average according to DPR 24 May 1988 no. 203
  • Monthly average according to attachment 3 to DM 12 July 1990
  • Average over 48 hours according to DM 8 May 1989
  • Monthly average according to DM 8 May 1989

The program calculates the "processed value" on the basis of the valid hourly values included in the period of the individual processing.
The value processed is compared with the limit set to determine a situation respecting or not respecting of the limit.
ARGO appropriately signals a situation not respecting the limit to the user.
The elementary data, times and processes archived by Argo are subject to exportation and printing, in particular to produce the certificates required by the regulations giving daily, monthly and annual tables.
Characteristics of the analysers
The analysers which can be connected to Argo must have some specific characteristics.
First of all, it must provide measurement of the individual size on an analogue current channel (4-20 mA), combined with the digital validation signal.
The calibration process must be processed independently by the analyser. To be able to connect up to Argo, the instrument must be able to signal the zero calibration situation, span calibration and the final result.
Furthermore, Argo is able to launch calibration on the instrument by means of a digital contact.
The connection between Argo and the instrumentation is made by means of an analogue/digital acquirement card mounted on the bus of the personal computer, or by means of acquisition peripherals connected to the serial Port of the personal computer.
Display
Argo is shown on display screens with a pleasant appearance and simple and intuitive use.
With just a few clicks of the mouse, the user can reach the information they need.
The last elementary datum, the last hourly datum and the last datum processed are displayed on the general status display. From this, the user can scroll through the historical elementary hourly and processed data, and the historical data of any limits exceeded. Furthermore, the commands for managing the status of the plant and for control of calibration are also available.
Another display is dedicated to scrolling through the historical data in the form of curves: up to eight curves are shown, with zoom and pan functions on both axes. The acquired elementary, hourly and processed data can be displayed.
A useful diary of significant events is also available in Argo, which provides support in examining the various plant situations. A special display allows selection and searching inside this particular history file.
The events linked to calibration are preserved in a special file which can be consulted on the "historical calibration data page".
Last but not least, the customisable synoptic page is available, where images, drawings or photographs of the plant can be imported to build up a summary picture of the plant situation.
Configurability
The high level of configurability of the program means it can be adapted to the various situations, without the producer having to intervene. Four displays provide support for the installer and the user in arranging the configuration, which is simple and rapid.
Up to 16 analogue measurements can be defined: Argo also allows acquisition of quantities which are not subject to regulatory control.

The following information can be configured for each analogue channel.
  • Description of the measurement
  • Chemical formula
  • Unit of measure
  • Monitor Code indicated in the regulations
  • Physical acquisition channel
  • Frequency of acquisition
  • Physical validation input
  • Enabling the calibration process
  • Conversion from the physical to the engineering value
  • Validation parameters of the elementary value
  • Validation parameters of the hourly value
  • Determination of the threshold limit
  • Alphanumeric display format
  • Graphic display parameters

The following can be configured for the plant:
  • Planet name
  • Factory code
  • Section code
  • Algorithm defining the technical minimum
  • Processing

Finally, the following can be configured for calibration:

  • Input for zero calibration recording
  • Input for span calibration recording
  • Input for calibration result recording
  • Output for launching calibration
  • Schedule of automatic calibrations
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