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1、PW206 digital pressure controller1.New FeaturesThis controller has two-layer structure, top for displaying actual pressure and bottom for set pressure. It has top and bottom limit alarms, two sets alarm,outputing by relay contact point . It can output by constant current and voltage,4-20mA or 0-10 V
2、 linear output analog data. It also can connect to the PLC and other controllers directly with automatic panel calibration function which makes the calibration much easier like just pressing some keys. This controller also adopts light and electricity insulation, watch dog, software wave filtering t
3、hese three types anti-interference technology. It ensures the reliability of the system. This controller supplies by switch, so it can work at 120V low voltage conditions.This controller is widely used in the petroleum, chemical fiber, and plastic industry. It can used with the normal controller for
4、 pressure test and control at normal temperature. Based on PW200 series, PW800 series are one new generation of intelligent instruments. Main technical detailsItemDescriptionDisplayTwo-layer structure, top for actual pressure and bottom for set pressureInternal Resolution32000External Resolution0.1
5、MPa,0.02MPa,0.05MPa data save for more than 40 years after disconnectionPower supply220VAC(120V-250V)Range099.99MPaRelay rating250VAC 5AOperating environment-10-55, 99% RHDimension96X96 X 100mmConfigurable output for pressure420mA, 05V, 010V optional2.Configuration and overall dimension PV display :
6、LED large nixie tube for display the current pressure. It will display parameters code name while you change the parameters. SV display: LED small nixie tube for display the top limit pressure(AL1). It will display the current parameter which you are revising.Introduction of keypad CE: zero clearing
7、 button.CAL: calibration button (Automatic calibration button).:Shifting button : Move button:Decreasing value button:Increasing value button Introduction of indication lightAL1top limit alarm indication light AL2-lower limit alarm indication lightCALcalibration indication light (the light will flic
8、ker when performs the automatic calibration).3. Wiring diagram on the display backside.1, 2.AL1 relay output normal open2, 3.AL1 relay output normal close4, 5.AL2 relay output normal open5, 6.AL2 relay output normal close7,8 AC supply input9. Sensor signal positive S+ (blue wire)10. Sensor positive
9、S+ (red wire)11. Sensor signal negative S- (black wire)12. Sensor negative E- (yellow wire)13. Sensor calibration C (green wire)14. Shield15. Output+16. Output-4. Basic operation and operation guide 1.starting up After wiring work is finish, and then connect the display with supply for self-check. D
10、uring the self-check, the PV display will display working position and minimal resolving power. The two front number of SV display will show the actual measurement valve, the back number will show minimal resolving power. The display will go back to working position after self-check automatically. A
11、t the working position, the upper PV display will show actual working pressure, the bottom PV display will show up limit alarm set valve. When the display is showing the following figure: it means measurement range is 50 MPa, division valve is 0.02Mpa.PV50.00SV MPa 5C.22.Change SV set valve(up limit
12、 valve AL1) When the display is at working position, press the shifting button to make SVs last number flicker, then you can change the up limit alarm setting valve by press the move button, increasing valve button, decreasing valve button. Please press shifting button another time to let the new va
13、lve become effective, then you can quit the SV valve setting position back to working position. The factory setting valve of SV is 80% of measurement range.(you can change the AL1 valve after entering the inner parameter revising position.) The display will go back to working position automatically
14、if you not press it in one minute. The SV valve will not become into effective if you not press the shifting button to confirm it.3.Zero clearing When we do heating from normal temperature to two hundred degree, The newly installed sensor will have a effect ion called temperature shadow which means
15、the PV gauge is not zero that time. then you can press CE button to do zero clearing.(please make sure the pressure on the sensor is zero before you press it.)If you do the wrong zero clearing, you can press the CE button for five seconds to get back last valve. 4.System matching pressure calibratio
16、nAt normal situation, the display and its matching sensor are provided to customers in pairs. They have their matching serial number and are already calibrated in the factory. If customers are not using them matchingly, they have to calibrate by themselves. To perform calibration, please do as follow (make sure the pressure on the sensor is zero-the extruder speed is zero): When
