Pneumatic control unit for decentralized automation of ELEMENT process valves

Transcription

1 890 Pneumatic control unit for decentralized automation of ELEMENT process valves Type 890 can be combined with... Compact design Integrated pilot valve with manual override Integrated control air routing Visual position indicator With ATEX II cat. G/D and cat. D/G approval Type 00 Angle seat valve Type 0 Globe valve Type 0 Diaphragm valve The pneumatic control unit Type 890 is designed for decentralized automation of ELE- MENT Type xx pneumatic process valves. Mechanical or inductive limit switches register the position of the valve. The integrated pilot valve controls single or double-acting actuators. The design of the control unit and the actuator enables an internal control air channel without external tubings. Besides the electrical position feedback signal the status of the device is shown directly on the control unit itself. 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. * Supply voltage according to UL NEC Class for versions with culus approval. ) The supply pressure has to be 0, - bar above the minimum required pilot pressure for the valve actuator. Technical Data Material - Body Cover Sealing Operating voltage * Pilot valve Initiator PPS PC EPDM V DC ±0 % residual ripple 0 % DC Consumption W max. V DC, max. A 0 to V DC, max. 00 ma ext. load per initiator According to Fieldbus specifi cation Control medium neutral gases, air, quality classes acc. to ISO 87- Dust concentration Class 7 (<0 μm particle size) Particle density Class (<0 mg/m ) Pressure condensation point Class (<-0 C) Oil concentration Class X (< mg/m ) Supply pressure to 7 bar ) Air input filter Exchangeable Mesh aperture ~0. mm Pilot air ports Threaded ports G /8, stainless steel or push-in connector (tube Ø mm or /" ) Position feedback or x micro switch ( V DC) or x initiator -wires ( V DC) or x initiator NAMUR (8 V DC) (ATEX II G Ex ia IIC T) Stroke range valve spindle Initiator Ambient temperature with pilot valve without pilot valve Installation Protection type 7 to 8 mm to 8 mm -0 to + ºC -0 to +0 C As required, preferably with actuator in upright position IP/IP7 acc. to EN 09, Type X acc. to NEMA 0 standard Protection class acc. to DIN EN 0 Conformity EMC directive 0/0/EU Approvals ATEX II cat. G/D and cat. D/G culus Cert. No. 879 Ignition protection: II D Ex tc IIIC T C Dc II G Ex na IIC T Gc II G Ex ia IIC T* Gb II D Ex ia IIIC T C Db IP Electrical connection Multipole Cable gland M, 8-pole Mx, (cable-ø 0 mm), screw terminals (, mm ) p. /

2 890 Ordering information for decentralized automation of On/Off ELEMENT valve systems A decentralized, automated valve system consists of pneumatic control unit Type 890 and a process valve ELEMENT Type xx. The following information is necessary for the selection of a complete system: Item no. of the desired pneumatic control unit Type 890 (see ordering chart on p. ) Item no. of the selected process valve Type xx (see separate datasheets, Type 00, 0, 0) You order two components and receive a complete assembled and certified valve. Click on the orange box "More info." below... you will come to our website for the resp. product where you can download the datasheet. Example for decentralized automation of On/Off ELEMENT valve systems Pneumatic control unit Type 890 Pneumatic process valves More info. Angle seat valve Type 00 Globe valve Type 0 Diaphragm valve Type 0 On/Off ELEMENT valve system Valve system Type 880-YE-U Valve system Type 880-GC-U Valve system Type 880-DF-U p. /

3 890 Ordering chart pneumatic control unit Type 890 (other versions on request) Pneumatic control unit for decentralized automation of ELEMENT On/Off process valves Type xx End position feedback Item no. Inductive switch V DC PNP Inductive switch NAMUR -wire 8 V DC Ex ia IIC T V DC Electrical connection Control function Pilot air ports threaded ports Standard ATEX II cat. G/D ATEX II cat. G/D M multipole single-acting G / double-acting G / G / Cable gland single-acting G / double-acting G /8 9 9 G / M multipole single-acting G / double-acting G / G /8 9 Cable gland single-acting G /8 7 9 double-acting G /8 9 9 G /8 9 single-acting G /8 double-acting G /8 G /8 M multipole single-acting G /8 7 G /8 7 0 Cable gland single-acting G /8 7 G /8 7 9 without end position feedback Cable gland single-acting G / double-acting G /8 9 Note: All non-atex versions are UL approved. Further versions on request Additional push-in pilot air ports (tube Ø mm / / ) Ordering chart adapter kit (has to be ordered separately) Description Actuator size Control function Item no. Adapter kit ELEMENT Type xx Ø 70/90/0 mm Universal 70 Accessories Description Item no. M socket 8-pin with m cable for power supply and input/output signals 99 7 ASI fl at cable clip with stainless steel socket M (spare part) 799 Silencer G / Silencer, push-in connector 90 p. /

4 890 Materials Transparent cap PC BASIC body PPS Sealing EPDM Cable connection Plug PA M Stainless steel Screws Stainless steel Push-in connector Threaded ports G /8 POM/Stainless steel Stainless steel Dimensions [mm] Mounting on process valve, ELEMENT Type xx p. /

5 890 Connection options Multipole, plug M 8-pins 8 7 Plug configuration V with micro switch Pin no. Configuration External Circuitry top (NO) top (NO) top (NO) bottom (NO) bottom (NO) bottom (NO) 0/ V 0/ V DC ± 0 % Residual ripple 0 % GND 7 Not confi gured 8 Not confi gured Plug configuration with initiator Pin no. Configuration INI OUT Output INI OUT Output INI - (GND) Supply INI + ( V DC) Supply 0 / V DC GND Cable gland M x, (cable-ø 0 mm), screw terminals (, mm ) Port configuration V with micro switch Terminal no. top (NO) bottom (NO) Pin no. Configuration External circuitry top (NO) top (NO) top (NO) bottom (NO) bottom (NO) bottom (NO) 0/ V GND 0/ V DC ± 0 % Residual ripple 0 % Port configuration with initiator Clamp no. Configuration INI - (GND) Supply INI OUT Output INI OUT Output INI + ( V DC) Supply 0 / V DC GND p. /

6 890 Port configuration with -Wire inductive proximity switches NAMUR Terminal No. Clamp no. Configuration INI Top + INI Top - INI Bottom + INI Bottom - External switching Ex protection area / / NAMUR- Sensor non-explosive area R +8, V DC 0 V ) + ) GND Tab. : Pin Assignment with Wire initiator ) (acc. to NAMUR recommendation ) also note the certificate of Fa. Turck KEMA 0 ATEX 090X ) Signal from barriers see PTB 07 ATEX 08 To find your nearest Bürkert facility, click on the orange box In case of special application conditions, please consult for advice Subject to alterations. Christian Bürkert GmbH & Co. KG 708/_EU-en_ p. /