Introduction; Specification Plates; Description; Vacuum Pumps - MIL'S MINIVAC PS Manual De Operación Y Mantenimiento

To ensure personal safety and to avoid any damage to equipment, it is essential to follow
the instructions contained in this document and any other documentation provided with
the device, and particularly the instructions on "Safe Practice".

INTRODUCTION

Please ensure you are familiar with the operating instructions prior to commissioning
your vacuum plant. Damage which may arise from incorrect siting or installation is not
covered by our guarantee.
In order to simplify any future requests for spare parts or further information about your vacuum unit, we
advise you to copy onto this page the specifications written on the plates fixed to the vacuum unit, as soon
as you receive your machine.

1.1. Specification plates

Type MINIVAC units
Serial number

DESCRIPTION

A MINIVAC vacuum unit can consist of:
 Two vacuum pumps and one attached receiver:
 Three vacuum pumps and one attached receiver:
Note: it is possible to combine the units to build a vacuum plant (up to 6 motors).

2.1. Vacuum pumps

MINIVAC PS vacuum plants are mounted with PS oil-less piston pumps.
MINIVAC ARICA vacuum plants are mounted with ARICA oil-free vane vacuum pumps.

2.2. Filtration and delivery pot

An antibacterial filtration unit traps bacteria before they reach the receivers and the vacuum pumps.
 MINIVAC 2 & 3: a DUPLEX PARALLEL antibacterial filtration consisting of two filters in parallel, running
simultaneously. During replacement of one cartridge, the secondary filter provides filtration, so in this
case the pump(s) is (are) constantly protected.
Our main bacteria filters consist of a pot/opaque filter containing a special bacteria cartridge fitted with a
deflector. This filter is opaque to prevent bacteria from proliferating in the filter element. The cartridge is
made of micro fibres bound with borosilicate, and its filtration fineness is approximately 1/100
micron. This cartridge passes the so-called sodium flame test. Penetration of bacteria and living
microorganisms is well below 0.05%, a value generally demanded by standards in various countries. A
sterilizable transparent Pyrex bottle is screwed to the base of the filter units.
An exhaust pot is placed on the exhaust circuit, located at the lowest point. Its purpose is to catch
condensation produced in the exhausted gas evacuation duct.
520713-01
MINIVAC 2/3 PS & ARICA
MINIVAC 2,
MINIVAC 3.
th of a

2.3. Electrical box

One electrical cabinet combines the motor control and protection systems.
Several types of control are available, depending on individual use:
 PROCOM-2 microcomputer to control between 1 and 6 pumps with sensor regulation,
 CYCLIC 2020 electronic system to control 2 or 3 pumps A, B and C with sensor regulation,
 MILLENIUM automatic system to control 2 or 3 pumps A, B and C with sensor regulation,

OPERATION

The air conveyed by the vacuum network passes through the main bacteria filter, enters the main receiver
and is then sucked by the vacuum pump(s) of the vacuum unit/plant.
The exhaust system consists of an exhaust hose fitted with a condensate collecting pot on a by-pass at the
lowest point of the network.
The pumps include a built-in check valve and, for added safety, a second check valve has been fitted. This is
located between the pump hose and its inlet into the receiver.
FLEXO regulation mode
When the pressure reaches the start-up pressure, the vacuum pump starts. The vacuum pump operates for
a duration equal to the FLEXO time (8 minutes adjustable).
During the FLEXO time , 3 cases can occur:
Case n°1
FLEXO time (8 minutes)
During the FLEXO time, if the pressure drops below the "Stop Motor" threshold, the vacuum pump is not
stopped.
At the end of the FLEXO time, if the pressure is up to the "Stop Motor" threshold, the vacuum pump
continues to operate until the pressure will reach the "Stop Motor" threshold.
End of FLEXO time
Start-up (-650 mbar)
Motor stop (-750 mbar)
High pressure stop (-820 or -870 mbar)
On
Off
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