2103 datasheet(4/29 Pages) BURKERT

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Type 8791

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General technical data

1.1. Positioner SideControl Type 8791

Product properties

Dimensions

Further information can be found in chapter “3. Dimensions” on page 11.

Material

Housing

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

Bürkert Communicator

PACTware (only for device versions with AS-Interface)

Commissioning

Initialisation positioner

Automatic by X.TUNE function (automatic adjustment of positioner)

Status display

Optical position indicator (mechanical)

Integrated (for NAMUR version)

Communication

Fieldbus

AS-Interface

Digital

IO-Link, Bürkert system bus (büS) (based on CANopen)

Performance data

Position sensor

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

3…130 mm, depending on the lever of the attachment kit

Electrical data

Operating voltage

24 V DC ± 25 %

Residual ripple

Max. 10 %

Power consumption

≤ 3.5 W

Protection class

III according to DIN EN 61140

Electrical connection

Multipole version

Screw terminals: M12, 4-pin resp. 8-pin according to device version

(see connection description “4. Device/Process connections” on page 15)

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 Ø 3…6.5 mm)

Pneumatic data

Control medium

Neutral gases, air, quality class according 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)

Air intake filter

Exchangeable

Mesh size

~0.1 mm

Supply pressure

1.4…7 bar 1.)2.)

Pilot air port

Threaded port G ¼

Positioning system

Universal air capacity

Single and double acting

50 l

N/min (at 1.4 bar

2.)

) for aeration and ventilation

150 l

N/min (at 6 bar

2.)

) for aeration and ventilation

Nn= 100 lN/min

Low air capacity

Single-acting

Nn= 7 lN/min (QNn according to definition at pressure drop from 7 to 6 bar absolute)

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