This is an intelligent electropneumatic positioner that conforms to field equipment communication standard HART, which is a world standard.

It permits easy and positive digital adjustment of positioner response characteristics and zero and span from a host equipment mounting DDL or from an HHC (Hand Held Communicator). Furthermore, with 3-key calibration executed by a pushbutton built in the positioner, it is possible to set principal items by unit positioner, without need for HHC or the like.

It can be mounted to an actuator of any of single action type, double action type, rotary type and linear type, and it operates with a 4-20mA instrumentation signal and compressed air. Therefore, it is a positioner of broad universality, and it is capable of transmitting self-diagnosis information and others besides valve opening and open/close limit signals to a host equipment that conforms to HART.

KOSO is now developing FF dealing equipment, which digitalizes up to control signals and conforms to Fieldbus Foundation Standards.

• 1. who are we?
  We are based in Zhejiang, China, start from 2013,sell to Southeast Asia(40.00%),Domestic Market(35.00%),Africa(15.00%),Mid East(10.00%). There are total about null people in our office.
  
  2. how can we guarantee quality?
  Always a pre-production sample before mass production;
  Always final Inspection before shipment;
  
  3.what can you buy from us?
  Differential pressure gauge,Red oil differential pressure gauge,Pressure differential pressure transmitter,Level controller,Float switch
  
  4. why should you buy from us not from other suppliers?
  We have excellent and experienced foreign trade team and other teams to provide you with the best and professional services. Our products are sold all over the world as best-selling products and high reputation products. We aim to maintain a high standard
  
  5. what services can we provide?
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