Regulation By Sensor Or By Vacuum Switch; Outline Diagram; Mechanical Architecture; Electrical Architecture - MIL'S MINIVAC PS Manual De Operación Y Mantenimiento

REGULATION BY SENSOR or BY VACUUM SWITCH

Vacuum plants fitted with the PROCOM-2 or CYCLIC 2020 are regulated by a 4/20mA analogue sensor
which measures pressures in ABSOLUTE terms and can transmit the values to the monitors selected by the
user, in either RELATIVE or ABSOLUTE mode. This measurement principle means that plants can be
installed at any altitude without the need to make corrections.
Plants equipped with the MILLENIUM are regulated by a 0-10V analogue sensor which measures pressures
in RELATIVE terms. They must be set according to where they are installed, using the values in the table
below.
Note: for the PROCOM-2, the CYCLIC 2020 or the MILLENIUM, the analogue sensor is backed up by
mechanical vacuum switches fitted as a safety measure, which must be set according to the altitude at
which they are used. The standard value release: -450 mbar.
PRESSURE CORRECTION TABLE ACCORDING TO ALTITUDE
Altitude Average pressure
in m in mbar
0 1013
100 995
200 984
300 974
400 964
500 955
1000 893
1500 840
2000 791
2500 700
It should be noted that vacuum pump flow rates vary according to the altitude at which they are installed
and the temperature of the air pumped.
FLOW RATE CORRECTION TABLE ACCORDING TO ALTITUDE AND TEMPERATURE
Example
Altitude Correction
for 50 m³/h,
in m coefficient
sea level
0 to 50 1 50
60 to 300 0.95 47.5
350 to 500 0.94 47
550 to 1000 0.88 44
1050 to 1500 0.83 41.5
1550 to 2000 0.78 39
2050 to 3000 0.69 34.5
520713-01
MINIVAC 2/3 PS & ARICA
Correction Coefficient
1
0.98
Keep
0.97
the factory setting
0.96
0.95
0.94
0.88
Modify
0.83 the factory setting
using this data
0.78
0.69
Temperature Correction Example for
of pumped air coefficient 50 m³/h at 20°C
-10 1.11 55.5
0 1.07 53.5
+20 1 50
+50 0.9 45
+100 0.78 39

OUTLINE DIAGRAM

6.1. Mechanical architecture

 See Annex

6.2. Electrical architecture

 See Annex

INSTALLATIONS

7.1. For MINIVAC 2 / 3 – PS & ARICA
Dimensions:  See annex

7.2. Power supply (see electrical circuit diagram attached)

Power supply must be removed prior to any intervention on the station.
Connection to the power supply must be carried out by the exploiting.
Connect vacuum plant for medical use to a backed-up power supply.
Note: Power supply failure will interrupt the production of vacuum.
Class I device: to avoid any risk of electric shock, this device must only be connected to a
power supply network equipped with a protective earth.
The HOSPIVAC and MINIVAC vacuum units are equipped with a dual power supply. It is
strongly recommended that each power supply comes from a different TGBT.
 Refer to the motors or stations rating plates in order to insure that the voltage used on site is that
required by the equipment.
 Connect the electric cabinet to power supply via the switch/breaker or the terminals L1–L2–L3–N +
Earth, using flexible power cord having conductor section capable of supporting the total power
requirements of all the motors that make up the unit (see table below).
Power cables must be protected upstream using a surge protection device in accordance
with current legislation and standards of your country.
Check all the electrical connections and tighten if necessary before switching on the
system
 A magneto-thermal starter as standard protects each motor.
 Connect the synthesis alarm overview to a visual and/or audible alarm on the control unit.
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