Buerkert Type 8791 SideCONTROL digital electropneumatic positioner (310305)

Name: Buerkert Type 8791 SideCONTROL digital electropneumatic positioner (310305)
Brand: Bürkert
SKU: N-BUR.310305
Price: 815.40 EUR
Availability: InStock

Item No.: N-BUR.310305

HAN: 310305

815,40 €

excl. 19% VAT (Paket)

Available

Delivery time: 1 - 5 Workdays Other countries

Product Information

Dimensions and Weight
Item information	Value
Category:	Type 8791 Positioner SideCONTROL BASIC
Function:	Positioner
Valve diameter:	2,2 mm
Installation type:	NAMUR / IEC 534 - 6 / VDI/VDE 3845
Position sensor type:	Internal rotative
Communication interface protocol:	AS-i
Electrical connection type:	Plug-in connector
Displacement transducer signal:	Potentiometer
QNn value (gas):	100 l/min
Approval type:	ATEX, IECEx
Pneumatic function:	single- and double-acting
Control interface:	DIP switch
Item weight:	1,65 kg

Product Description

SideCONTROL digital electropneumatic positioner

The robust and compact positioner is designed for mounting on linear and quarter-turn actuators with standardisation according to IEC 65034-6-1 or VDI/VDE 3845 (IEC 60534-6-2). The variant with remote position sensor can also be used for closed-loop control of Buerkert process control valves. The set-point value setting default for the SideCONTROL digital electropneumatic positioner occurs via standard signals 4 to 20 mA and/or via bus as an option. A digital input and optional analogue feedback are also available. The valve opening is qualitatively signalled via a mechanical display element and the device status, via 3 coloured LEDs. All operating elements are located inside the housing. Start-up is performed automatically and the following functions are enabled directly on the device via DIP switch: sealing threshold, inversion of set point signal direction, characteristic selection, manual/automatic operating state switchover. Additional options for configuration and parametrising, such as the linearization of the operating characteristic with the aid of a freely programmable correction characteristic, are available using communication software. The pneumatic actuating system can be used equally for single-acting and double-acting actuators. It is characterised by a defined safety response in the event of the failure of the electrical or pneumatic auxiliary power and possesses an enormous air capacity range at pressure supplies up to 7 bar.

Technical data

Device & function (7)

Type	8791
Product sub-group	Positioner / Process Controller
Function	Positioner
Manual override	No
Suitable for actuator sizes	125, 130, 175, 225 mm
Control interface	DIP switch
Installation type	NAMUR / IEC 534 - 6 / VDI/VDE 3845

Pneumatics & performance (5)

Pneumatic function 1 double-acting	Yes
Pneumatic function 1 single-acting	Yes
Valve orifice size	2,2 mm
QNn value (gas)	100 l/min
Actuating system with booster function	No

Position transmitter (2)

Position sensor type	Internal rotative
Position sensor signal	Potentiometer

Pneumatic connections (10)

Port connection 1 type	Internal thread
Port connection 1 thread type	G
Port connection 1 thread marking	1/4
Port connection 2 type	Internal thread
Port connection 2 thread type	G
Port connection 2 thread marking	1/4
Port connection 3 type	Internal thread
Port connection 3 pre-mounted	Blind plug
Port connection 3 thread type	G
Port connection 3 thread marking	1/4

Electrical data (11)

Electrical connection type	Plug-in connector
Electrical connection type	male
Electrical connection material	Stainless steel
Voltage min / nominal voltage	29,5 V
Voltage max / nominal voltage	31,6 V
Supply voltage system-internal	No
Supply voltage via BUS	Yes
Supply voltage via isolated barrier	No
Galvanically separated actuator supply	No
AC voltage	No
DC voltage	Yes

Signals & communication (7)

Input 1 type digital	serial (bus)
Input 2 type digital transistor connection NPN	No
Input 2 type digital transistor connection PNP	No
Output 1 type digital	Serial (bus)
Output 2 digital transistor connection NPN	No
Output 2 digital transistor connection PNP	No
Communication interface protocol	AS-i

Temperature & protection (3)

Environment temperature min	0 °C
Environment temperature max	60 °C
Degree of protection IP (max. with suitable connection)	IP65/67

Approvals (2)

Approval type	ATEX, IECEx
Certification type	Ex ec ic IIC T4 Gc, II 3 G Ex ec ic IIC T4 Gc, II 3 D Ex tc IIIC T135°C Dc, Ex tc IIIC T135°C Dc

Shipping & customs (4)

Weight	1,645 kg
Customs tariff number	90328900
Country of origin	Germany
Export	Not subject to export licensing

Product benefits

Compact and robust design
Easy start-up using X.TUNE function
Integrated diagnostic functions for valve monitoring
Dynamic actuating system with no air consumption in controlled state
IO-Link port class A & B, AS-Interface or Buerkert-Systembus (büS)

Your Benefits With Us

Worldwide shipping of all valves and flow meters
Large stock levels for many products – current lead time available on request
Spare parts and service kits available
Fast shipping via UPS (parcel) or freight forwarder (pallets), express delivery available on request
Extensive hands-on application know-how
Personal advice on selecting the right component
Resellers receive volume-based discounts on request
Large companies, public authorities and government agencies can order on account (request via our contact form)

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Question about item

Manufacturer according to GPSR
Christian Bürkert GmbH & Co. KG, Christian-Bürkert-Straße 13-17, 74653 Ingelfingen, Baden-Württemberg, Deutschland, [email protected]

Buerkert Type 8791 SideCONTROL digital electropneumatic positioner (310305)

Dimensions and Weight