Management program for leakage test stands

This PC-based system is composed of several Hardware interfaces equipped with
electronic cards of our production that can manage in a standard installation:

• 16 Analogue inputs for the acquisition of pressure, temperatures, positions, forces, ..
• 32 digital inputs for the control of external devices such as limit stops, alarms, photocells …
• 32 digital outputs for the control of external devices such as solenoid valves, relays, pistons …
• 2 analogue outputs for the control of external devices
• 3 meters for acquisition of of rpm, frequency …

The machine is controlled by a software developed in Windows so that you can take
advantage of all the innovations Microsoft can offer to the user.

The WINVALVE program is designed for easy use, because we believe that a software
designed for industrial application, especially if it is designed for Quality Control, and
therefore the End-of-Line Test Stand, should be a tool for improving the quality of the
products and industrial processes and not an obstacle.

The work environment is completely configurable by the client for the following:

• acquired channels  (operating range, number of decimals, measurement units,..) 
  and formulas for calculation
• desktop (display of values acquired with aid of different instrument such as horizontal 
  and vertical bar graph analogue struments, displays, …)
• setting of the work page background with possibility  of inserting a BMP image 
  that schematizes the process being automated.
• Setting/control of cycles and inspection procedures
• Handling of emergency situations
• Management and control of external devices with dedicated serial protocols
• Print-out of 40 or 80-column test certificate
• Management of reason for reject for end-of-line stands
• Management of optic pen for recognizing piece code
• other options..

You can enter any number of automatic cycles that are completely configurable
as far as execution times, digital controls, operating controls, fault messages,
control of external devices, etc.

But what makes it universal for industrial applications is the fact that it is equipped
with a structure for setting operating procedures that allows you to skip from the
execution of one cycle to another base on IF...THEN...ELSE conditions that can be
entered on any analog or digital channel within each step of each cycle.
As a result, the software is both powerful and versatile and can be suited to 
any requirement.

If the system is used as an end-of-line test stand, it can include the following:

• a powerful data base that allows you to create a file of all the tests, ordered by 
  type and date of inspections
• a statistical section on all the tests performed, ordered by type and date of 
  inspection, so that operator will always know the result of all the tests and the 
  reason for the rejection.

This system has been used to produce a leakage test stand utilized by a company
that produces reduction units for methane gas for automotive purposes.

Together with its partner companies, Tecno EL also produces the mechanics and
pneumatic system of the test stand. The result is a fully automatic machine, where the
operator need only to insert the piece to test inside a protected bos, managed by a
CE-approved safety limit stop which will prevent it from opening during the test, and
to control the start of the test by pressing two buttons simultaneously.

The machine carries out the following:

• Stops the reduction unit being tested and performs the pre-set inspection procedure, 
  checking by means of a complex pneumatic circuit, the micro-leakages 
  (resolution 0.1mbar) of the piece
• Evaluates the suitability of the piece based on imposed limits and communicates 
  this to the operator by means of flashing lamps.
• Marks the reduction unit, if the test result is positive, controlling in serial  the 
  designated instrument.
• Automatically prints out the test certificate to attach to the tested reduction unit.
• Updates the data base and statistics.
• Increases the serial number if test is positive, and returns to a wait mode for a new test.

For all of its complex functions, this equipment is designed for anyone who needs to control
the seal of their products, such as manufacturers of solenoid valves, cylinders, reduction units,
tanks, etc.

The system shown is extremely innovative because it enhances a sector, that until the
new European standards on quality control were established, was never obligated to
perform inspections on the final product, and there were no approved machines to perform
these controls, but only sporadic applications.  Now, however, certification of each piece
is required. The piece has to be marked and included with a test certificate providing the
data, recorded values and final result.