D-type operation output forward and reverse control signal, operating in automatic working condition, its function is similar to the servo amplifier to adjust the display based on the error control signal input and actuator SVin feedback signal controller wholesale price to ensure that the actual valve valve position tracking timely given signal, and automatic control. When the manual-like display control device when in price, and its function is similar to an operator, can change keys on the front panel direct operation, reverse output signal. Forward and reverse 10 amps of output signals normally open relay contacts or capacity of 5 amps triac, or 3-24 volts DC solid state relay SSR selectable trigger signals. Feedback or measuring signal input (PVin): PVin signal valve position signal (analog or linear resistance signal) sent by the implementing agencies display control device sales price, or on-site measurement signal, PVin for universal indexing number to switch inputs. Feedback or measuring signal transmission output mA / V (PVout): PVout output signal to the previous stage regulator or DCS system, the system can monitor the actual valve position at any time or on-site measurements. Display controller display controller _ quote _ Tianchang instrument linked instruments provided by the United Instrument Sales Co., Ltd. Tianchang instrument. Tianchang instrument Alliance Instrument Sales Co. (www.ylybxs.com) (www.ylybxs.com) strong, credible, in Chuzhou temperature instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Tianchang instrument linked instruments and you hand into the brilliant, for a better future!