4、 Enter the adjustment state.<br>1. Input 4madc current into the input terminal, confirm that the valve position is the initial stable value of 0%, press 4mA key, the LED flashes 3-5 times, and the initial feedback value is 3.95ma. After the lamp flashes, press 4mA again, and the light flashes 3-5. Then the feedback is 0% adjusted. 2. Input 8.0madc current, confirm valve position is 25% when initial stable, press 8Ma key, led flicker 3-5 times, feedback display 8.0ma, that is about 25%. After the light flashes, press 8.0ma again, and the lamp flashes 3-5, then the feedback 25% adjustment is completed. 3. Input 12.0madc current at input terminal, confirm that valve position is 50% when initial stable, press 12.0ma key, led flicker 3-5 times, feedback display 12.0ma, that is about 50%. When the light flashes, press 12.0ma again, and the light flashes 3-5, then the feedback 50% adjustment is completed. 4. Input the current of 16madc at the input end, confirm that the valve position is 75% at the initial stable state, press the 16.0ma key, the LED flickers for 3-5 times, and the feedback shows that 16.0ma is about 75%. After the lamp flashes, press 16.0ma again to complete the lamp flashing 3-5, and then feedback 75% adjustment is completed. 5. Input 20mADC current into the input terminal, confirm that the valve position is 100% when the initial stable, press the 20.0ma key, the LED flashes 3-5 times, and the feedback shows that 20.0ma is about 100%. After the lamp flashes, press 20.0ma again, and the lamp flashes 3-5, then feedback 100% adjustment is completed. Enter the central control automatic control mode. 6. For example, when the return stroke is 4mA, 8Ma, 12mA, 16mA, 20mA, when the valve position at each point is stable, if there is deviation, it can be adjusted according to the corresponding point.
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