Piusi EX 50 12V, Руководство пользователя

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22 M0217 EN
EN
D MACHINE DESCRIPTION
PUMP SELF-PRIMING, VOLUMETRIC, ROTATING ELECTRIC VANE PUMP,
EQUIPPED WITH BY-PASS VALVE.
MOTOR BRUSH MOTOR POWERED BY CONTINUOUS CURRENT, LOW
VOLTAGE, WITH INTERMITTENT CYCLE, CLOSED TYPE, IP55
PROTECTION CLASS ACCORDING TO CEI EN 60034-5, FLANGE-
MOUNTED DIRECTLY TO THE PUMP BODY.
ATTENTION MOTOR EQUIPPED WITH AUTOMATIC THERMAL
OVERLOAD PROTECTION. SHOULD THE PROTECTION
ACTIVATE, TURN OFF THE PUMP AND WAIT FOR IT TO
COOL DOWN.
D1 DEFINITION OF CLASSIFIED ZONES
FOREWORD Definition of zones as shown in UNI EN 1127-1 standard
ZONE 0 Place where an explosive atmosphere made up of a mix of air and inflam-
mable substances in the form of gas, vapour or mist is continuously pre-
sent, either for long periods or frequently.
Note: Generally speaking, said conditions, when they occur, involve the in-
side of tanks, pipes and containers, etc.
ZONE 1 Place where it is probable that an explosive atmosphere, made up of a mix
of air and inflammable substances in the form of gas, vapour or mist, can
occur occasionally during normal operation.
Note: Said zone can also include:
- places in the immediate vicinity of zone 0;
- places in the immediate vicinity of supply openings;
- places in the immediate vicinity of filling and and emptying openings;
- places in the immediate vicinity of appliances, protection systems and fra-
gile glass and ceramic components, or components made of other similar
materials;
- places in the immediate vicinity of inadequately sealed stuffing boxes, e.g.,
on pumps and valves with stuffing box.
ZONE 2 Place where it is improbable that an explosive atmosphere, made up of a
mix of air and inflammable substances in the form of gas, vapour or mist,
can occur during normal operation, but which, if it does occurs, only per-
sists for a short time.
Note: Said zone can include, among others, places surrounding the zones
0 or 1.
ZONE 20 Place where an explosive atmosphere in the form of a cloud of combustible
powders in the air is continuously present, either for long periods or fre-
quently.
Note: Generally speaking, said conditions, when they occur, involve the in-
side of tanks, pipes and containers, etc.
ZONE 21 Place where it is probable that an explosive atmosphere, in the form
of a cloud of combustible powders in the air, can occur occasionally
during normal operation.
Note: Said zone can include, for example, among others, places in
the immediate vicinity of powder loading and emptying points and
places where powder layers form or which, during normal operation,
could produce an explosive concentration of combustible powders
mixed with the air.
ZONE 22
Place where it is improbable that an explosive atmosphere, in the form
of a cloud of combustible powders in the air, occur during normal ope-
ration but which, if it does occur, only persists for a short time.
Note: This zone can comprise, among others, places near appliances,
protections systems and components containing powder, out of
which the powder can come out due to leaks with the formation of
powder deposits (e.g., milling salt, where the powder comes out of the
mills and deposits).