Description
Compact Positioner Type 8692
The compact positioner Type 8692 is optimized for integrated mounting on the pneumatic actuators in the process valve series Type 23xx/2103 and is specially designed for the requirements of a hygienic process environment. The
control air channel is integrated in the actuator without external tubing. The easy handling and the selection of additional software functions are done either on a big graphic display with backlight and keypad or over COMMUNICATOR.
The positioner registers the valve position without deterioration through a contact-free, analog position sensor. The control of single or double-acting actuators is done without internal air consumption. With integrated diagnostic functions operation conditions of the control valve can be monitored. Through status signals, valve diagnostic messages are transmitted according to NAMUR NE107 and recorded as history entries.
The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing, in food, beverage and pharmaceutical industries. Combined with Bürkert ELEMENT actuators the unique pilot valve system enables a compressed air recycling that avoids actuator chambers contamination from the environment.
Technical Data
Material
Body PPS, stainless steel
Cover PC
Sealing EPDM
Power supply 24 V DC ± 10 % UL: NEC Class 2
Residual ripple max. 10 %
Setpoint setting 0/4 to 20 mA and 0 to 5/10 V
Output resistance 0/4 to 20 mA: 180 Ω 0 to 5/10 V: 19 k Ω
Control Medium neutral gases, air, quality classes acc. to ISO 8573–1
Dust concentration Class 7 (< 40 µm particle size)
Particle density Class 5 (< 10 mg/m3)
Pressure condensation point Class 3 (<- 20 °C)
Oil concentration Class X (< 25 mg/m3)
Ambient temperature – 10 to 55 °C
Pilot air ports Threaded ports G ⅛ stainless steel
Supply pressure
Low air flow rate 0 to 7 bar1)
High air flow rate 3 to 7 bar
Air input filter Exchangeable (mesh aperture~0.1 mm)
Actuator system Actuator series Type 23xx Actuator series Type 27xx
Low air flow rate: Ø Actuator 70/90 mm
High air flow rate: Ø Actuator 130 mm
High air flow rate: Ø Actuator 175/225 mm
Position detection module Contact-free, wear-free
Stroke range valve spindle 3 to 45 mm
Installation as required, preferably with actuator in upright position
Protection type IP65/IP67 acc. to EN 60529, Type 4X acc. to NEMA 250 standard Protection class 3 acc. to DIN EN 61140
Power consumption < 5 W
Electrical connection
Multipole connection M12, 8-pins or 4-pins
Cable gland 2xM16 × 1.5 (cable-Ø 5 – 10 mm) with connection terminals for cable cross-sections 0.14 – 1.5 mm²
Bus communication PROFIBUS DP-V, DeviceNet, EtherNet/IP, PROFINET, Modbus TCP, büS – Bürkert System Bus (based on CANopen)
Approvals ATEX II Kat 3G/D / IECEx cULus Cert. No. 238179
Ignition protection II 3D Ex tc IIIC T135 °C Dc II 3G Ex nA IIC T4 Gc
Conformity EMC directive 2014/30/EU
1 The supply pressure has to be 0.5 – 1 bar above the minimum required pilot pressure for the valve actuator.
