Bürkert Digital Electropneumatic Positioner for Integrated Mounting on Process Control Valves Type 8694

Compact positioner for integrated mounting on pneumatically controlled process control valves. The set-point value setting default occurs via standard signal 4-20 mA and/or via AS interface. A sensor element with contactless function records the valve spindle position. Simple start-up via automatic TUNE function and setting with the aid of DIP switch: sealing threshold, characteristic selection, inversion of direction, manual/automatic operating state switchover, digital input. Additional options available for parametrising using device DTM. A software interface can be used for the linearisation of the operating characteristic with the aid of a freely programmable characteristic, amongst other things. The status indicator functions using LEDs. An analogue position feedback can be optionally integrated.

Body

PPS, stainless steel

Seal

EPDM

Configuration tool

Bürkert Communicator

Initialisation of positioner

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

Digital

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

Position detection module

Contactless analogue position sensor (wear-free)

Valve spindle

Linear: 3…45 mm

Operating voltage

24 V DC ± 25 %

Residual ripple

Max. 10 %

Power consumption

≤ 3.5 W

Protection class

III according to DIN EN 61140

Multipole variant

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

Cable gland variant

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

Control medium

Neutral gases, air, quality class according to ISO 8573 - 1

Dust content

Class 7 (< 40 µm particle size)

HS Code

8481.80

• Burkert 8694
• Buerkert 8694
• Bürkert 8694
• Type 8694
• Burkert Type 8694