产品描述
The models are as follows:
ZXQ98-9696 (Opening: 92X92) Square型号如下：
ZXQ98-9696(开孔：92X92)正方形
ZXQ98-9648(开孔：92X45)横式
ZXQ98-4896(开孔：45X92)竖式
此定位器可接受来自上位仪表的DC 4—20mA的调节信号和下位电动执行机构电位器的“三线”信号（或DC4—20mA的阀位反馈信号），输出“开”和“关”信号，实现对阀门开度的控制与调节。 可与单相交流电机的执行器配用（如阀角执行器与直行程电动执行机构），而且还可以与三相交流电机的执行机构、电动装置配用。
1、显示范围：0.0-100.0%；
2、定位精度：0.1-0.3%可调,最高定位精度0.1%；
3、输入信号：4-20mA DC等电流电压；其它信号出厂前可定制；
4、电动执行器反馈信号:电位器反馈0-5k,电流反馈4-20 mA,0-10 mA,0-20 mA；
5、可控硅触点容量：25A,250V AC；可更改问外接SSR输出或者16A继电器输出；
6、硬手操、智能自动定位；
7、电动阀门开度自动标定；
8、可设定参数：最小开度（自动状态）、最大开度（自动状态）；定位精度、自调范围、自调最小步距；输入信号上限标定、输入信号下限标定、输入信号下限标定；
9、可选择带RS485接口；
ZXQ98-9648 (opening: 92X45) horizontal type
ZXQ98-4896 (opening: 45X92) vertical type
This positioner can accept the regulating signal of DC 4-20mA from the upper instrument and the "three wire" signal of the potentiometer of the lower electric actuator (or the valve position feedback signal of DC 4-20mA), and output the "on" and "off" signals to control and regulate the valve opening. It can be used with actuators of single-phase AC motors (such as valve angle actuators and straight stroke electric actuators), and can also be used with actuators and electric devices of three-phase AC motors.
1. Display range: 0.0-100.0%;
2. Positioning accuracy: 0.1-0.3% adjustable, with a maximum positioning accuracy of 0.1%;
3. Input signal: 4-20mA DC constant current voltage; Other signals can be customized before leaving the factory;
4. Feedback signal of electric actuator: potentiometer feedback 0-5k, current feedback 4-20 mA, 0-10 mA, 0-20 mA;
5. Thyristor contact capacity: 25A, 250V AC; Can be changed to external SSR output or 16A relay output;
6. Hard manual operation and intelligent automatic positioning;
7. Automatic calibration of electric valve opening;
8. Can set parameters: minimum opening (automatic state), maximum opening (automatic state); Positioning accuracy, self adjustment range, and self adjustment minimum step distance; Input signal upper limit calibration, input signal lower limit calibration, input signal lower limit calibration;
9. Optional with RS485 interface;
Special requirements can be customized
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