Type 8694

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1.

General technical data

1.1. Digital electropneumatic positioner, Type 8694

Product properties

Dimensions

Further information can be found in chapter “4. Dimensions” on page 8.

Material

Body

PPS, stainless steel

Seal

EPDM

Cover

PC

Operation

Operating keys

2

DIP switch

Integrated

Service interface

Connection with PC via USB connection

Configuration tool

Bürkert Communicator

PACTware (only for device versions with AS-Interface or analogue version with serial interface)

Commissioning

Initialisation positioner

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

Manual override of pilot valve

Mechanical

Status display

Display of device and valve status

Multicoloured LEDs

Communication

Fieldbus

AS-Interface

Digital

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

Performance data

Position sensor

Measuring principle

Inductive

Position detection module

Contactless analogue position sensor (wear-free)

Stroke range

Valve spindle

3…45 mm

Electrical data

Operating voltage

24 V DC ± 25 %

UL: NEC Class 2

Residual ripple

Max. 10 %

Power consumption

≤ 3.5 W

Protection class

III according to DIN EN 61140

Electrical connection

Multipole version

M12, 8-pin resp. 4- or 5-pin according to device version

(see “5. Device/Process connections” on page 9)

Cable gland version

M16 x 1.5 (cable Ø 5…10 mm) with terminals for cable cross-sections 0.14…1.5 mm²

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 supply filter

Exchangeable

Mesh size

~0.1 mm

Supply pressure

Low air capacity

0…7 bar 1.)

High air capacity

3…7 bar

Pilot air port

Threaded connection G ⅛, stainless steel