P
Dear All,
I am New in Process control. i have a Samson steam control valve with zero and span setting in it. i am facing problem that when i set temp 100 from hmi, it goes up to 108 and then close and when return to 95 then again open. i want to reduce the tolerance to only 2 degrees. means if i set 100 degree Celsius then it will close max on 102 and again open on 98.
please help how can i calibrate the control valve positioner? please guide in deeply step by step as i am new to automation and control valve. model number Samson 4763 o/p 4-20ma proportional controller Samson 6109 input 4-20ma and output 0.2-1 bar.
I am New in Process control. i have a Samson steam control valve with zero and span setting in it. i am facing problem that when i set temp 100 from hmi, it goes up to 108 and then close and when return to 95 then again open. i want to reduce the tolerance to only 2 degrees. means if i set 100 degree Celsius then it will close max on 102 and again open on 98.
please help how can i calibrate the control valve positioner? please guide in deeply step by step as i am new to automation and control valve. model number Samson 4763 o/p 4-20ma proportional controller Samson 6109 input 4-20ma and output 0.2-1 bar.