Gate opening instrument: Uses: It is used for agricultural irrigation, water conservancy, hydropower project conventional instruments, generally perennial uninterrupted operation, often no probation, thus requiring very high stability and reliability. Model: There are four types of gate opening instrument: GD-I, GD-II, GD-III, JH-I. GD-I use LCD mechanical encoder inputs; GD-II uses LED digital display optical encoder input; GD-III uses LED digital display optical encoder input have text messaging capabilities;. JH-I uses LED digital display optical encoder input Long chassis. Use: All these types of models have RS485 communication function, there are more than 200 units in use around the country. LED display gate opening instrument with six data and two state absolute encoder can be connected with the gate opening sensor (SSI interface), used to measure the value of display gate opening, it has set a reference altitude, the range set fixed, sensor accuracy is set, the sensor zero setting and other functions, it can be connected to a computer industrial control network by 4 ~ 20mA current loop remote for the gate opening to be monitored. GD-II-type gate opening instrument using TI's new low-power single-chip, AD's highly integrated 16-bit D / A digital-chip technology, optical isolation technology to make extremely careful design anti-interference ability and high stability. ※ T ※ E ※ L ※ 1 ※ 8 ※ 6 ※ 6 ※ 0 ※ 7 ※ 6 ※ 1 ※ 5 ※ 7 ※ 5 ※※ Q ※ Q ※ 1 ※ 6 ※ 7 ※ 7 ※ 4 ※ 8 ※ 8 ※ 1 ※ 4 ※ 0 ※ because production batch, the specific models, the above picture is only for reference, more price information please contact: Business Contact: Mengjing Li Contact phone: 18660761575 Business Want: zhongmeixiaoli business QQ: 1677488140 E-mail: zhongmeixz @ 163 .co m Address: 69 High-tech Zone, Jining City, Shandong Province torch Road