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How Does Electro-Pneumatic Positioner Work?
Electric-pneumatic valve locator is a device that receives DCcurrent signal...
The ALP210 series valve uses the microcontroller electronic control unit, the PID exact algorithm of the pneumatic instrument.With keys, LCD dot array screen display, HART communication an
| Model ALP210(angular trip and straight trip are universal) | X | -X | X |
| Have 4–20m A control with no 4–20m A feedback signals | 0 | ||
| Have 4–20m A control and 4–20m A feedback signals | 1 | ||
| Have HART com munication function | 2 | ||
| Have4-20m A control and 4-20m A feedback signal with HART communication function |
3 | ||
| With FF bus | 4 | ||
| With a PROFIBUS bus | 5 | ||
| Spring-action | S | ||
| Double-acting | D | ||
| Electrical interface NPT1/2, gas source interface NPT1/4 (standard) | N | ||
| Electrical interface M20x1.5, gas source interface RC1/4 (national Standard) | M |
Technical Parameter
| Project | Model | |||
| ALP2100 | ALP2101 | ALP2102 | ALP2103 | |
| Input signal | 4-20mADC Split range 4-12mA 12-20mA | |||
| Pressure | 0.14-0.6MPa (1.4-6Bar) | |||
| Out signal | Without Feedback | 4-20mADC | HART communication | 4-20mA+HART |
| Equivalant resistance | 425Ω@20mADC 625Ω@20mADC | |||
| Control accuracy | 0.50% | |||
| Linearity | ±0.5% | |||
| Sensitivity | ±0.2% | |||
| Air consumption | ＜2L/M @0.14MPa | |||
| Ambient temperature | Temperature：-25℃ — +60℃ Humidity：≤90% | |||
| Antiknock characteristic | ≤2g（5-200Hz） | |||
| Intrinsic safety parameters | Ui=28VDC Ii=93mA Pi=0.65W Ci=1nF Li=0.2mH | |||
| Protection level | IP66 | |||
| Input origin range | 4-12mADC | |||
| Output origin range | 12-20mADC | |||
| Input signal | 4-20mADC/20-4mADC | |||
| Output signal | 4-20mADC/20-4mADC | |||
| Cut-off restriction | Origin:0-10% destination:90%-110% | |||
| Stroke adjustment | Origin:0-30% destination:70%-100% | |||
| Stroke time range | （0-200）S | |||
| Output characteristics | Linearity 1:25 1:50 | |||
| Tolerance zone | 0.1%-10% | |||
| PID parameters | Can be set | |||
| Power supply interface size | NPT1/2 or M20X1.5 | |||
| Air source interface size | NPT1/4 or RC1/4 | |||
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