The Shenzhen ten thousand news automatic control limited companies promote the intelligent valve locator accepts the automatic control system system the 4~20mA valve position hypothesis signal, carries on the high precision the A/D sampling to transform, obtains the numeral to suppose the definite value variable. Compares with the traditional valve locator, the Wan Xun intelligent valve locator main merit is: (1) the precision high, the reliability is good; (2) is easy to install, the compatibility is strong; (3) better control performance; (4) discharge characteristic revision; (5) the man-machine contact surface is good; (6) the breakdown with reports to the police from the diagnosis; (7) long-distance correspondence; (8) low energy consumption.

Because the intelligent valve locator has many traditional valves locator incomparable merit, moreover the field bus has gradually become the industrial automation domain the hot spot, therefore develops based on the field bus intelligent valve locator realizes the air operated execution product digitization, the correspondence, the intellectualization, to follows close on the international tidal current, seizes this quantity to be big, the surface broad product market share has the extremely vital significance.