Bürkert Digital Electropneumatic Process Controller for Integrated Mounting on Process Control Valves

The compact process controller device Type 8693 is optimised for integrated mounting on the pneumatic actuators in the Type 23xx/2103 process valve series and is specially designed for the requirements of a hygienic process environment. The actual value of the process factor is directly supplied to the device as 4-20 mA, PT100 or a frequency signal. The process controller calculates the set-point for the subordinated positioner based on the variance comparison. Via the analogue feedback, all analogue values on the control levels can be transferred. The integrated diagnostic functions are used to monitor control valve operating conditions. Valve diagnostic messages via status signals are issued in accordance with NE107 (NAMUR) and recorded as historical entries. The parameterisation of process controller and positioner can be carried out automatically. The easy operation and the selection of additional software functions are carried out either via the large graphic display with backlight and keypad or via COMMUNICATOR. The positioner registers the valve position without deterioration via a contact-free, analogue position sensor. The actuation of single or double-acting actuators is carried out without internal air consumption. Communication interfaces such as PROFIBUS DP-V1, EtherNet/IP, PROFINET, Modbus TCP, büS (based on CANopen) and analogue as well as digital feedback are optionally available.

Body

PPS, stainless steel

Seal

EPDM

Cover

PC

Display

Graphic display with backlight and intuitive menu navigation

Operating keys

Membrane keypad with 4 keys

Service interface

Connection to PC via USB büS interface set

Configuration tool

Bürkert Communicator PACTware (only for device variants with PROFIBUS or analogue variant with serial interface)

Initialisation of positioner/process

Automatically by P.TUNE function (self-optimisation of PID parameter)

Manual operation of pilot valve

In manual mode via push-button on control panel

Fieldbus

EtherNet/IP, PROFINET, Modbus TCP, PROFIBUS DP-V1

Digital

Bürkert system bus (büS) (based on CANopen)

Measurement principle

Linear: inductive Rotary: magnetic

Position detection module

Contactless analogue position sensor (wear-free)

Valve spindle

Linear: 3...45 mm Rotary: 30...180°

Operating voltage

24 V DC ± 10 % UL: NEC Class 2

Residual ripple

10 %, no technical DC voltage

Power consumption

≤ 5 W

Protection class

III according to DIN EN 61140 (VDE 0140 - 1)

Digital input

1 digital input, 0...5 V = log „0", 10...30 V = log „1"

Digital output

2 digital outputs (optional), galvanically isolated

Current limit per digital output

100 mA, in case of overload, the output is switched off and cyclically switched on again to check for still existing overload.

Analogue output

1 output (optional) 0/4...20 mA, 0...5/10 V

Set-point value setting default

0/4...20 mA 0...5/10 V

Input resistance

0/4...20 mA, 180 Ω 0...5/10 V, 19 kΩ

Frequency setting

17 kΩ input resistance, 0...1000 Hz

Pt 100 setting

20...+ 220 °C, resolution < 0.1 °C

HS Code

9032.89

• Burkert 8693
• Buerkert 8693
• Bürkert 8693
• Type 8693
• Burkert Type 8693