Intelligent PID adjusting apparatus

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Intelligent PID control instrument used with all kinds of sensors, transmitters, realize the tempera…

Intelligent PID control instrument used with all kinds of sensors, transmitters, realize the temperature, pressure, liquid level, capacity, strength and other physical quantity measurement display, intelligent PID adjusting device with various and electromagnetic actuator for electric heating equipment, electric, pneumatic valve and PID regulation and control, alarm control, data acquisition, recording.

A, intelligent PID adjusting instrument function characteristics:

1. Universal input function;
2. Automatic calibration and manual calibration function;
3. Manual/auto undisturbed switching function;
4. Can choose to adapt to the heating or cooling is/reaction;
5. Control output signal amplitude limit:
(1) using fuzzy control theory and the way of the combination of traditional PID control, the control process is fast response, small overshoot and high steady precision, the advantages of the great pure delay object of the conventional PID control has obvious control effect.
(2) strengthen the function of 30 period of program control.

Second, the intelligent PID control instrument specifications:

1. The basic error: 0.5% FS or 0.2% FS + 1 word;
2. Points distinguishes the force: 1/20000, 14 A/D converter;
3. The display mode: double row four LED digital tube display.
4. The sampling period: 0.5 S;
5. Alarm output: two limit alarm, the upper limit and lower limit alarm way as the measured value and the deviation alarm, AC220V / 3 a relay contact output capacity;
6. Control the output:
(1) relay contact output;
2 solid state relay output pulse voltage (DC12V / 30 ma);
(3) single-phase/three-phase thyristor zero trigger;
(4) single-phase/three-phase thyristor phase shift trigger;
5] analog 4 ~ 20 ma, 0 ~ 10 ma, 1 ~ 5 v, 0 ~ 5 v output control.
Output: 7. Communication interface way - isolated bi-directional serial communication interface RS485 / RS422 / RS232 / Modem;
8. Set baud rate - 300 ~ 300 BPS internal freedom;
9. Feed output: DC24V / 30 ma.
10. Electricity source, switching power supply of 85 ~ 265 vac power consumption below 4 w.