burkert 8635定位器宝帝8635 The SideControl Positioner Type 8635 is an electropneumatic positioner for pneumatically actuated process valves with linear or partturn actuators. burkert 8635定位器宝帝8635 It is excuted in two conductor technology.  Signal processing, control and actuation of the internal positioning system are accomplished with microprocessor-controlled electronics.  The software function Autotune implemented therein enables automatic adaptation of the positioner to the control valve in use

特点：

1. Electropneumatic positioner for pneumatically actuated process valves
2. ATEX approval II 2 (1) G Ex ia IIC T6 Gb 

参数：

burkert 8635 Body material Aluminium, hard anodized and plastic coated
Other external parts Stainless steel V4A
burkert 8635 Seal material NBR, Neoprene
burkert 8635 Control medium
 Processing
 Dust content
 Particle density
 Pressure dew point
 Oil concentration

burkert 8635 neutral gases
burkert 8635 DIN ISO 8573-1
Class 5 (≤ 40 μm particle size)
Class 5 (≤ 10 mg/m³)
min. 10° under min. operating conditions
Class 3 (≤ 1 mg/m³)
burkert 8635 Control air
burkert 8635 temperature
-25 ... +60 °C1)
burkert 8635 Ambient temperature -25 ... +60 °C1)
burkert 8635 Supply pressure 1.4 ... 6 bar3)
Air fl ow capacity2)
 Control valve
55 l/min at 1.4 bar3)

170 l/min at 6 bar3) for pressurizing and venting
burkert 8635 Intrinsic air
consumption
0 l/min
burkert 8635 Positioning range
 Linear actuator
 Part-turn actuator
3 ... 130 mm
0 ... 120°
Position sensor

system
burkert 8635 High-resolution, conductive plastic, rotary potentiometer
burkert 8635 Operation Operating keys and plain-text display
burkert 8635 Electrical connection 2 x M20 x 1.5-bushing
burkert 8635 Clamping range 6 ... 12 mm
burkert 8635 Screw terminals for 0.14 ... 1.5 mm²