Additional Safety Instructions For Installation In Explosive Atmospheres; Checklist - Parker P1VAS Installationsanweisung

Additional safety instructions for installation in explosive atmospheres

Serious, even fatal, damage or injury may be caused by the hot moving parts of the P1VASmotors in the presence of
explosive gas mixtures and concentrations of dust.
All installation, connection, commissioning, servicing and repair
work on P1VAS motors must be carried out by qualified person-
nel taking account of the following
• These instructions
• Notices on the motor
• All other planning documents, commissioning instructions
and connection diagrams associated with the application.
• Provisions and requirements specific to the application
• Applicable national/international regulations (explosion
protection, safety and accident prevention)
Real life applications
P1VAS motors are designed to provide rotary movement in
industrial applications, and should only be used in accordance
with the instructions in the technical specifications in the cata-
logue, and within the operating range indicated on the motor
housing. The motors meet the applicable standards and re-
quirements of the Machinery Directive 2006/42/EC and ATEX
2014/34/EU.
The motors must not be used as brakes in
explosive atmospheres.
Braking involves driving the motor against the direction of
rotation for which the motor is supplied with compressed air.
The motor is then operating as a compressor, and there is a
corresponding increase in temperature.
The motors must not be used underground in mines
susceptible to firedamp and/or combustible dust. The motors
are intended for use in areas in which explosive atmospheres
caused by gases, vapours or mists of combustible liquids, or air/
dust mixtures may be expected to occur during normal use (infre-
quently)

Checklist

Before using the motors in a potentially explosive atmosphere,
you should check the following:
Do the motor specifications match the classification of the area of
use in accordance with ATEX Directive.
• Equipment group
• Equipment category
• Zone
• Temperature class
• Max. surface temperature
1. When installing the motor, is it certain that there is no
potentially explosive atmosphere, oil, acids, gases, vapours
or radiation?
2. Is the ambient temperature as specified in the technical data
in the catalogue at all times?
3. Is it certain that the P1VAS motor is adequately ventilated
and that no additional heat is added (for example in the shaft
connection)?
4. Are all the driven mechanical components ATEX certified?
Installation requirements in potentially explosive atmospheres
• The temperature of the supply air must not exceed the
ambient temperature.
• The P1VAS may be installed in any position.
• An air treatment unit must be attached to the inlet of the
P1VAS air motor.
• In a potentially explosive atmosphere, none of the motor
ports may be blocked because this may cause an increase in
temperature. The air from the port must be taken to the
silencer or, preferably, outside the potentially explosive area.
• The P1VAS motor must be connected to ground at all times,
through its support, a metallic tube or separate conductor.
• The outlet of the P1VAS motor must not open within a
potentially explosive area, but must be passed to the silencer
or, preferably, removed and released outside the potentially
explosive area.
• The P1VAS motor may only drive units that are ATEX
certified.
• Ensure that the motor is not exposed to forces greater than
those permitted in accordance with the catalogue.
Measuring the temperature on the outside of the P1VAS
motor (only when used in potentially explosive areas)
During the commissioning process, it is essential to measure
temperature increases at the indicated positions on the outside
of the P1VAS motor.
These measurements can be taken using standard
thermometers.
Checking the motor during operation:
The motor must be kept clean on the outside, and a layer of dirt
thicker than 5 mm must never be allowed to form.
Strong solvents should not be used for cleaning, because they
can cause the seal (material NBR/FPM) around the drive shaft to
swell, potentially increasing the temperature.
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UK