Burkert 8311 User manual

Instruction Manual
PRESSURECONTROLLER
TYPE 8311
©Bürkert2000 Subject to technical change without notice Ref. 438972

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Pressure Controller type 8311
Table of Contents
1 SAFETY INSTRUCTIONS ....................................................................................... 4
1.1 Utilisation ........................................................................................................ 5
1.2 Precautions at installation and commissioning .......................................... 6
1.3 Conformity to standards ................................................................................ 6
2 DESCRIPTION ......................................................................................................... 8
2.1 Design ............................................................................................................. 8
2.2 Measuring principle ....................................................................................... 8
2.3 Available versions .......................................................................................... 9
2.4 Accessories .................................................................................................... 9
3 TECHNICAL DATA ................................................................................................ 10
4 INSTALLATION ..................................................................................................... 14
4.1 General recommendations .......................................................................... 14
4.2 Mounting on the pipe ................................................................................... 14

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4.3 Electrical connection ................................................................................... 15
4.3.1 Connectors ..........................................................................................15
4.3.2 Version with transistor output (NPN / PNP) .....................................16
4.3.3 Version with relay output .................................................................... 17
5 PROGRAMMING ................................................................................................... 18
5.1 General recommendations .......................................................................... 18
5.2 Functionalities .............................................................................................. 18
5.3 Programming keys ....................................................................................... 19
5.4 Default Configuration ................................................................................... 19
5.5 Normal Mode ................................................................................................20
5.6 Possible switching modes of the 8311 .......................................................21
5.7 Calibration Mode ..........................................................................................22
5.8 Simulation Mode ...........................................................................................25
6 MAINTENANCE ..................................................................................................... 26
6.1 Cleaning ........................................................................................................26
6.2 Error messages ............................................................................................ 26
7 ANNEX...................................................................................................................28
7.1 Examples of Easy Link© with the 8311 ...................................................... 28
7.2 Description of the label of the controller type 8311 .................................. 31
7.3 Description of the label of the pressure cell .............................................. 31

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Pressure Controller type 8311
1 SAFETY INSTRUCTIONS
- Always respect the safety instructions marked by the symbol
opposite as well as those included in the manual.
- Ensure the max. pressure the application can reach is within
the chosen pressure range. It is recommended to equip the
installation with a pressure relief valve.
- The units on the display flash when the max. pressure of the
range is exceeded.
Pressure range (bar) Max. admissible pressure Destruction pressure
0-2 6 7
0-5 12 15
0-10 25 30
0-20 50 60
0-50 120 150

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1.1 Utilisation
- The 8311 controller has only been designed to measure the
relative pressure of a liquid or a gas.
- The measuring element must be solidly screwed onto its support.
There will be no manufacturer warranty for damages caused by
unexpected handling or wrong usage of the device. The warranty on
the device becomes invalid if any modification or change is made on
the device.
The device should only be installed and repaired by specialist
staff.
The user is not allowed to work on the cables inside the
housing.
If any difficulties may occur with the product during installation,
please contact your nearest Bürkert sales office for assistance.

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Pressure Controller type 8311
1.2 Precautions at installation and commissioning
- When the device is powered and the cover is open, protection
against electric shocks is not effective.
- Always ensure the materials in contact with the medium to
measure are chemically compatible.
- To clean the device, only use chemically compatible products.
- Do not insert any object (screwdriver for instance) inside the
sensor body. If the body is dirty, use compressed air to clean it.
When dismounting the controller from the pipe, take all the
necessary precautions linked to the process.
1.3 Conformity to standards
EMC: EN 50 081-1, 50 082-2
Security: EN 61 010-1
Vibration: EN 60068-2-6
Shock: EN 60068-2-27

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Pressure Controller type 8311
2.1 Design
The pressure controller type 8311 is made up of an electronic module
and a measuring element. It may switch a solenoid valve, activate an
alarm or establish a control loop.
The switching point can be adjusted by means of the three keys
located under the display. The adjustment can optionally be carried
out by means of a 4-20 mA loop via an external controller.
The controller housing can be turned by 180°.
The controller type 8311 can be inserted in a Bürkert fitting type S005
or S001, before being mounted on any type of pipe.
The electrical connection is carried out via a 2508 (DIN 43 650)
connector and/or an M12 multipin connector.
2.2 Measuring principle
The controller type 8311 uses a piezo-resistive ceramic cell.
2 DESCRIPTION

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2.3 Available versions
Order number table of the controllers type 8311 for the 0-10 bar pressure range
Supply Input Output Connection Order number
voltage G1/2NPT1/2RC1/2
12-30 VDC --- NPN and PNP M12 connector 439 932 439 940 439 936
12-30 VDC --- Relay M12 and DIN 43650 connectors 439 935 439 943 439 939
12-30 VDC --- NPN DIN 43650 connector on request
12-30 VDC --- PNP DIN 43650 connector on request
12-30 VDC 4...20 mA ext. setpoint Relay M12 and DIN 43650 connectors on request
ASI --- Relay and ASI M12 and DIN 43650 connectors on request
Order number
M12 female connector, 5 pins, to be wired 917 116
M12 connector, 5 pins, moulded on a shielded cable (2 m) 438 680
Order number table of the accessories
2.4 Accessories
Order number table of the controllers type 8311 for the 0-2 bar, 0-5 bar, 0-20 bar and 0-50 bar pressure ranges : on request

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Pressure Controller type 8311
General features
Pipe diameter any type of pipe with a DN greater than 15 and a 1/2 ‘’ threaded connection
piece (G, NPT or Rc)
Medium temperature -20 °C to +100 °C (- 4 °F to +212 °F) , +100 °C ( +212 °F ) with a max. ambient
temperature of +40 °C (+104 °F)
Measuring range 0-10 bar for the standard versions
0-2, 0-5 bar, 0-20 bar and 0-50 bar on request
Accuracy ±1.5% of the full scale
Repeatability
- typical 0.25%
- max. 1%
Measuring element ceramic cell (Al2O3)
Electrical features
Installation class
(overvoltage class) 2
Power supply 12-30 VDC
Max current consumption 750 mA (with load) (PNP version)
80 mA (without load) (Relay version)
Protection against
polarity reversal yes
Transistor output NPN and/or PNP, open collector, 5-30 VDC, 700 mA max.
or
Relay output 250 VAC, 3 A or 30 VDC, 3 A ; programmable
External setpoint input 4-20 mA (on request)
3 TECHNICAL DATA