Output of KOSO800 series valve positioners
Thread Content
I would like to ask everyone: how many 800-series positioners are there in the factory? Why does the pressure output by the positioner to the cylinder for some valves be around 100 KPa at a signal of 4 mA, while for other valves it is 0 KPa at the same signal level? Thank you
Valves can operate in either direct or reverse mode. In direct mode, when the signal is 4MA, the valve closes and the output air pressure is at its lowest level; when the signal is 0, the valve opens. In reverse mode, the situation is reversed.
The output air pressure of the locator ranges from 0 to 200 in some cases, and from 80 to 200 in other cases.
It is related to the reaction force of the actuator.