Burkert-Type 8791 - Digital electropneumatic Positioner SideControl BASIC

BURKERT – TYPE 8791 Digital Electro Pneumatic SideControl Positioner

จุดเด่นของ Type 8791

Compact and robust design
Easy to start using Tune function
AS-Interface, IO-Link or Bürkert system bus (büS)
Integrated diagnostic functions for valve monitoring
Dynamic positioning system with no air consumption in controlled state

คำอธิบาย

Digital electropneumatic Positioner SideControl

BURKERT – TYPE 8791 is designed to a standardisation acc. to IEC 65034-6-1 or VDI/VDE 3845 (IEC 60534-6-2) for assembly with linear and rotary actuators. In addition, the remote version with the displacement position sensor can be combined with Bürkert process control valves The setpoint setting for the electro-pneumatic digital Positioner SideControl BASIC occurs using a standard signal 4…20mA or by bus as an option. In addition there is a binary input and an optional analogue feedback available. The valve opening is signalled by a mechanical indicator element and the device status is shown on three coloured LEDs. All the operational elements are found in the housing . The start-up happens automatically, and directly at the device the following functions can be activated through DIP switches: – Close tight function – Inversion of the operating direction of the setpoint signal – Characteristic curves selection – Switching between manual and automatic mode.

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General Technical Data | Burkert - Type 8791

Product characteristics			ขนาด
Dimensions	Detailed information can be found in chapter “2. Dimensions” on page 9.
Material
Body	Aluminium plastic-coated
Seal	EPDM, NBR, FKM
Operation
Operating keys	2 keys
DIP switch	Integrated
Service interface	Connected to PC via USB connection
Configuration tool	Burkert Communicator PACTware (only for device versions with AS-Interface)
Commissioning Initialization positioner	Automatic by X.TUNE function (automatic adjustment of the positioner)
Status display
Communication
Fieldbus	AS-Interface
Digital	IO-Link, Bürkert system bus (büS) - based on CANopen
Performance data		Add New
Integrated position sensor (NAMUR)	Conductive plastic rotary potentiometer
External remote position sensor	Linear or rotative
Measuring range for rotary actuator	Rotation angle 30°…180°
Stroke range for linear actuator Valve spindle	3…130 mm, depending on the lever of the attachment kit
Electrical data		Performance data
Operating voltage	24 V DC ± 10 %
Residual ripple	Max. 10 %
Voltage tolerance	< 3.5 W
Protection class	III acc. to DIN EN 61140
Input/Output		24 V DC, 230 V/50 Hz (other voltages on request)
Digital input	1 binary input, 0…5 V = log “0”, 10…30 V = log “1”
Analogue output	1 output (optional) 0/4…20 mA
Process/Port connection & communication	Electrical connection
Multipole version	Screw terminals: M12, 4 pin resp. 8 pin acc. to device version (see connection descrip-tion)
Cable gland version	2x M20 × 1.5 (cable-Ø6…12 mm) on screw terminals (0.14…1.5 mm²)
Remote version	1x M12 × 1.5 (cable-Ø3…6.5 mm)
Pneumatic data		With moulded cable 3 m long, 3 × 0.5 mm2 With moulded cable 3 m long, 3 × 0.5 mWith terminal box
Control medium	Neutral gases, air, quality class acc. to ISO 8573 - 1
Dust content	Class 7 (< 40 µm particle size)
Particle density	Class 5 (< 10 mg/m3)
Pressure dew point	Class 3 (<- 20 °C)
Oil content	Class X (< 25 mg/m3)

*For selecting thecorrect product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.