آی پی پوزیشنر SAMSON مدل 3725

For your own safety, follow these instructions concerning the mounting, start up and operation of the positioner:
 The positioner is to be mounted, started up or operated only 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.
 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.
 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.
 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.
 Proper shipping and appropriate storage are assumed
The electropneumatic positioner is mounted
on pneumatic control valves. It is used to assign the valve stem position (controlled variable x) to the control signal (reference variable w). The electric control signal received
from a control system is compared to the
travel or rotational angle of the control valve
and a signal pressure (output variable y) is
produced for the pneumatic actuator.
The positioner consists of an anisotropic
magnetoresistive (AMR) sensor (2), an analog i/p converter (7) with a downstream
booster and the electronics unit with
microcontroller (4).