Burkert 8311 User manual
Operating Instructions
PRESSURE CONTROLLER
8311
© Bürkert 2000–2022 Subject to technical change without notice
00559848_2206_Ind_F
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Pressure controller 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 and directives...................................................................... 6
1.4 Conformity to the pressure equipment directive ......................................................... 6
2 DESCRIPTION���������������������������������������������������������������������������������������������������������������������� 8
2.1 Design....................................................................................................................... 8
2.2 Measuring principle ................................................................................................... 8
2.3 Available versions ...................................................................................................... 9
2.4 Accessories............................................................................................................... 9
2.5 Description of the label of the controller 8311 ............................................................ 9
3 TECHNICAL DATA �������������������������������������������������������������������������������������������������������������� 10
4 INSTALLATION ������������������������������������������������������������������������������������������������������������������� 12
4.1 General recommendations....................................................................................... 12
4.2 Mounting on the pipe............................................................................................... 12
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4.3 Electrical connection................................................................................................ 13
4.3.1 Cable plugs ............................................................................................................. 13
4.3.2 Version with transistor output (NPN / PNP) .............................................................. 14
4.3.3 Version with relay output.......................................................................................... 15
5 PROGRAMMING���������������������������������������������������������������������������������������������������������������� 16
5.1 General recommendations....................................................................................... 16
5.2 Functionalities.......................................................................................................... 16
5.3 Programming keys................................................................................................... 17
5.4 Default conguration................................................................................................ 17
5.5 Normal mode .......................................................................................................... 18
5.6 Possible switching modes of the 8311..................................................................... 19
5.7 Calibration mode ..................................................................................................... 20
5.8 Simulation mode...................................................................................................... 23
6 MAINTENANCE������������������������������������������������������������������������������������������������������������������ 24
6.1 Cleaning .................................................................................................................. 24
6.2 Error messages ....................................................................................................... 25
7 ANNEX�������������������������������������������������������������������������������������������������������������������������������� 26
7.1 Examples of connections with the 8311................................................................... 26
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Pressure controller 83111 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.
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
- Theunitsonthedisplayashwhenthemax.pressureofthe
range is exceeded.
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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 following units are available to display the measured pressure:
bar, kPa, psi, mPa, Torr, mmHg, atm, MWS, mbar.
When using an absolute pressure unit (Torr, mmHg, atm, MWS),
beawarethattheairpressuredisplacement(about1013mbar)is
not taken into account by the device.
- 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 modication or change is made on
the device.
The device should only be installed and repaired by specialist
sta.Theuserisnotallowedtoworkonthecablesinsidethe
housing.Ifanydicultiesmayoccurwiththedeviceduring
installation,pleasecontactyournearestBürkertsalesocefor
assistance.
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Pressure controller 8311
1.2 Precautions at installation and commissioning
- When the device is powered and the cover is open, protection
against electric shocks is not eective.
- Always ensure the materials in contact with the medium to mea-
sure 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 ne-
cessary precautions linked to the process.
1.3 Conformity to standards and directives
The applied standards, which verify conformity with the EU direc-
tives, can be found on the EU-type examination certicate and/or the
EU declaration of conformity (if applicable).
1.4 Conformity to the pressure equipment directive
- Make sure the device materials are compatible with the uid.
- Make sure the pipe DN and the PN are adapted for the device.
The device conforms to Article4, Paragraph1 of the Pressure Equip-
ment Directive 2014/68/EU under the following conditions:
1 SAFETY INSTRUCTIONS
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- Device used on a pipe (PS=maximum admissible pressure;
DN=nominal diameter of the pipe)
Type of uid Conditions
Fluid group1, Article4, Paragraph1.c.i DN≤25
Fluid group2, Article4, Paragraph1.c.i DN≤32
or PSxDN≤1000
Fluid group1, Article4, Paragraph1.c.ii DN≤25
or PSxDN≤2000
Fluid group2, Article4, Paragraph1.c.ii
DN≤200
or PS≤10
or PSNxDN≤5000
- Device used on a vessel (PS=maximum admissible pressure)
Type of uid Conditions
Fluid group1, Article4, Paragraph1.a.i PS≤200bar
Fluid group2, Article4, Paragraph1.a.i PS≤1000bar
Fluid group1, Article4, Paragraph1.a.ii PS≤500bar
Fluid group2, Article4, Paragraph1.a.ii PS≤1000bar
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Pressure controller 83112 DESCRIPTION
2.1 Design
The pressure controller 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 controller housing can be turned by 180°.
The controller 8311 can be inserted in a tting before being mounted
on any type of pipe.
The electrical connection is carried out via an EN175301-803
connector and/or a steerable M12 multipin connector.
2.2 Measuring principle
The controller 8311 uses a piezo-resistive ceramic cell.
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2.3 Available versions
2.4 Accessories
Accessory Article number
5-pin M12 cable plug, to be wired 917116
5-pin M12 cable plug, moulded on a shielded cable (2m) 438680
EN175301-803 cable plug (type2518) with cable gland 572264
EN175301-803 cable plug (type2509) with NPT1/2" reduction 162673
Supply voltage Output Electrical connection Article number
G1/2 NPT1/2 Rc1/2
12...30VDC NPN and PNP M12 connector 439932 439940 439936
12...30VDC Relay M12 and EN175301-803 connectors 439935 439943 439939
2.5 Description of the label of the controller 8311
1. Measured quantity and type of controller
2. Power supply
3. Output features
4. Pressure range
5. Serial number
6. Protection class: protective insulation
7. Manufacturing code
8. Article number
9. Sensor material
PRESSURE 8311
CERAMIC 12-30VDC
REL : 230VAC/3A
0-10 bar
S-N:1110
439935 W45LL
Made in France
1
2
3
5
789 6
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Pressure controller 8311
General features
Pipe diameter Any type of pipe with a 1/2" threaded connection piece (G, NPT or Rc)
Medium temperature −20°C...+100°C, +100°C with a max. ambient temperature of +40°C
Measuring range 0...10bar, standard
0...2bar, 0...5bar, 0...20bar and 0...50bar on request
Accuracy ±1.5% of the full scale (full scale = max. value of the measuring range)
Repeatability
- typical 0.25%
- max. 1%
Measuring element Ceramic cell
Protection rating IP65 connectors being plugged-in and tightened
Electrical features
Installation class
(overvoltage class) 2
Power supply 12...30VDC
Current consumption
Version with PNP output Max. 750mA + consumption of the load, if the PNP output is connected
Max. 50mA + consumption of the load, if the PNP output is not connected
Version with relay output Max. 80mA, without load
Protection against
polarity reversal Yes
Transistor output NPN and PNP, open collector, 700mA max., NPN output: 0.2...30VDC and PNP output:
supply voltage (see example in the Annex)
or
Relay output 250VAC, max. 3A or 30VDC, max. 3A; programmable
3 TECHNICAL DATA
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