1 Important safety instructions
For your own safety, follow these instructions concerning the mounting, start-up and opera
-
tion of the positioner:
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The positioner may only be mounted, started up or operated by trained and
experienced personnel familiar with the product.
According to these Mounting and Operating Instructions, trained personnel refers to
individuals who are able to judge the work they are assigned to and recognize
possible dangers due to their specialized training, their knowledge and experience as
well as their knowledge of the relevant standards.
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Explosion-protected versions of this positioner may only be operated by personnel
who have undergone special training or instructions or who are authorized to work
on explosion-protected devices in hazardous areas. Refer to section 13.
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Any hazards that could be caused by the process medium, the operating pressure,
the signal pressure or by moving parts of the control valve are to be prevented by
means of the appropriate measures.
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If inadmissible motions or forces are produced in the actuator as a result of the supply
pressure, the supply pressure must be restricted by means of a suitable supply
pressure reducing station.
Combustible dust atmospheres of zone 21 and zone 22
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For use in combustible dust atmospheres complying with the type of protection Ex tD (pro-
tection by enclosure for dust), observe sections 5.6.3.2 and 18.2 of EN 60079-14: 2008
for Practice A.
To avoid damage to any equipment, the following also applies:
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Do not operate the positioner with the back of the positioner/vent opening facing
upwards.
The vent opening must not be sealed when the positioner is installed on site.
EB 8384-5 EN 9
Important safety instructions
Vent opening
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