Samson 5857 - Safety Instructions and Measures; Foreseeable Misuse and Personnel Qualifications

EB 5857 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
TheType5857ElectricActuatorisdesignedtooperateamountedglobevalveusedinheat-
ing, ventilation and air-conditioning systems. In the version with digital positioner, the posi-
tioner ensures a predetermined assignment of the valve position to the input signal.
Theactuatorisdesignedtooperateunderexactlydenedconditions(e.g.thrust,travel).
Therefore, operators must ensure that the actuator is only used in operating conditions that
meetthespecicationsusedforsizingtheactuatorattheorderingstage.Incaseoperators
intendtousetheactuatorinotherapplicationsorconditionsthanspecied,contact
SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external
factors.
Î Refertothetechnicaldataforlimitsandeldsofapplicationaswellaspossibleuses.See
the 'Design and principle of operation' section.
Reasonably foreseeable misuse
The actuator is not suitable for the following applications:
− Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts
− Performing service and repair work not described
Qualications of operating personnel
The actuator must be mounted, started up, serviced and repaired by fully trained and quali-
edpersonnelonly;theacceptedindustrycodesandpracticesmustbeobserved.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 hazards due to their spe-
cialized training, their knowledge and experience as well as their knowledge of the applica-
ble standards.