Protective measures
The end user or the contractor are responsible for implementing required protective
measures on site, such as enclosures, barriers, or personal protective equipment
for the staff.
Maintenance
To ensure safe device operation, the maintenance instructions included in this manual
must be observed.
Any device modification requires prior written consent of the manufacturer.
1.2.
Range of application
AUMA multi-turn actuators SAEx 07.2 – SAEx 16.2/SAREx 07.2 – SAREx 16.2 are
designed for the operation of industrial valves, e.g. globe valves, gate valves, butterfly
valves, and ball valves.
The devices described below are approved for use in the potentially explosive
atmospheres of zones 1, 2, 21, and 22.
If temperatures >40 °C are to be expected at the valve flange or the valve stem (e.g.
due to hot media), please consult AUMA. Temperatures > 40 °C are not considered
with regards to the non-electrical explosion protection.
Other applications require explicit (written) confirmation by the manufacturer.
The following applications are not permitted, e.g.:
●
Industrial trucks according to EN ISO 3691
●
Lifting appliances according to EN 14502
●
Passenger lifts according to DIN 15306 and 15309
●
Service lifts according to EN 81-1/A1
●
Escalators
●
Continuous duty
●
Buried service
●
Continuous underwater use (observe enclosure protection)
●
Potentially explosive areas of zones 0 and 20
●
Potentially explosive areas of group I (mining)
●
Radiation exposed areas in nuclear power plants
No liability can be assumed for inappropriate or unintended use.
Observance of these operation instructions is considered as part of the device's
designated use.
These operation instructions are only valid for the “clockwise closing” standard
version, i.e. driven shaft turns clockwise to close the valve. For “counterclockwise
closing” version, a supplement must be observed in addition to these operation
instructions.
Specific conditions of use
The particular conditions of use are listed on the certificates supplied. Among others,
this includes the following conditions:
●
Refer to
page 5, Electrostatic charging
for further references to minimise the
risk of electrostatic charging within a potentially explosive atmosphere.
●
For information regarding the dimensions of the flameproof joints, contact the
manufacturer.
●
Special fasteners according to IEC 60079-0 to seal flameproof enclosures must
have the following strength classes:
-
Minimum A*-70 for all special fasteners, excluding screws for fixing motors
of VKX type
-
Minimum A*-80 for screws for fixing motors of VKX type
●
For fixing the screws, please also refer to
page 98, Tightening torques for
6
SAEx 07.2 – SAEx 16.2/SAREx 07.2 – SAREx 16.2 Control unit: electronic (MWG)
Safety instructions
ACExC 01.2 Non-Intrusive HART
