PID controller(temperature PID controller, pressure PID controller) 

PID controller

INPUT SIGNAL

              analog input: resistancedifferent heat resistance, such as Pt100,Cu100,

Cu50 or remote pressure resistance

              thermocoupledifferent thermocouples, such as B, S, K, E, J, T, WRe

              voltage05V,15V or mV, and so on

              current010mA,420mA or 020mA,and so on

              pulse input: wave spectrumrectangularsinusoidal or triangle

                          voltagemore than 4V(or by user).

                          frequency05KHz

 MEASURE RANGE        19999999 digit

 MEASURE ACCURENCY    0.2%FS±1digit or 0.5%FS±1digit

 RESOLUTION           ±1digit

 TEMPERATURE COMPENTATION     050

 DISPLAY METHOD

19999999 Display measured value    19999999 Display set value

19999999 Display external given value19999999 Display value position feedback value

0100% Display output            Display LED working state

Display LED working state         Display highlighted LED digits.

CONTROL METHOD.

PID control current/voltage output  PID control relay switch output

Position ON/OFF with back-difference.

SWITH OUTPUT  relay positive/inverse turn control outputrelay ON/OFF with back-difference

OUTPUT SIGNAL

Analog output:     010mA(load resistance≤750Ω)

                   420mA(load resistance≤500Ω)

                   05V(output resistance≤250Ω)

                   15V(output resistance≤250Ω)

Switch output:  relay control output(AC220V/3A,DC24V/5A,resistance load)

             relay positive/inverse turn control outputrelay ON/OFF with back-difference

             contact capacity:AC220V/3A; DC24/6A(resistance load)

Controllable silicon control outputSCR (controllable silicon zero contact pulse,400V/0.5A

Solid relay outputSSR(Solid relay control signal)output,624V/30mA

Feed power output:       DC24V, load≤30mA.

Communication output:

             portstandard serial bi-direction communication port:RS-485,RS-232C,RS-422

             baud rate3009600bps internal setting at will

     Analog control output is isolated from transducer output

ALARM METHOD

   Can select relay higher/lower limit alarm output, LED indication

   Can select relay highest limit alarm output, LED indication

   Can select relay lowest limit alarm output, LED indication

   Can select relay within deviation limit alarm output, LED indication

   Can select relay beyond deviation limit alarm output, LED indication

   Can select relay LBA limit alarm output, LED indication

ALARM ACCURACY    ±1digit

COMMUNICATION

   Communication protocol can be two, three or four wire system (such as RS-485, RS-323,RS-422),or can be assigned by user. band rate 3009600bps can be set by internal parameters at will. Interface is isolated from mainframe by photo-electricity to improve system reliability and data security. The maximum communication distance is 1 km.Upper microcomputer can collect various signals and data to from energy managing and controlling system. Using SWP data collector and SWP NUBAN industrial control configuration software, several GN instruments can be on-lin e communicated with one or more microcomputers. The system uses main-subordinate type of communication to from various energy managing and controlling systems. The control loop only needs one two-wire(or three-or four-wire)cable to communicate with upper microcomputer, which can call the device number set by user, call on-line data of instruments at any time, and set internal parameters..

PRINT CONTROL  directly connect with different serial printer, communication method is RS-232

PRINT ACCURACY  the same as the instrument measuring accuracy

SETTING METHOD

         Front panel touch keypad digital setting

         Keep set values permanently if power breaks down

         Lock passwords of parameters set values

PROTECTION METHOD

         Input loop break alarm (relay output, LED indication)

         Alarm when surpass or under range(relay output, LED indication)

         Automatic recovery when under normal voltage

         Automatic recovery when abnormal operating(Watch dog)

OPERATING ENVIRONMENT Ambient Temperature 050

         Relative Humidity≤85 RH

         Power SupplyNormal:  AC220V+10-15%(50Hz±2Hz,linear power supply)

Special:  AC90260VSwitching power supply

          DC24V±2VSwitching power supply

          Avoid heavy corrodent gas

POWER CONSUMPTION

          ≤5W(AC 220V power supply)

          ≤4W(AC90265V Switching power supply)

          ≤4W(DC24V power supply)

CONSTRUCTION    Standard Inserting Type.

WEIGHT    420g(AC power supply)

          260g(Switching power supply)......

PID controller (temperature PID controller, pressure PID controller)