Bürkert 8311 Manuale utente
Instruction manual
© Bürkert 2003 Subject to technical change without notice
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1.1 Utilisation..................................................................................................................................................................................................5
1.2 Precautionsatinstallationandcommissioning.........................................................................................................6
1.3 Conformitytostandards..............................................................................................................................................................6
2.1 Design.........................................................................................................................................................................................................7
2.2 Measuringprinciple.........................................................................................................................................................................7
2.3 Availableversions..............................................................................................................................................................................8
2.4 Orderingtableofaccessoriesandspareparts.........................................................................................................9
2.5 Descriptionoftheproductlabel............................................................................................................................................9
4.1 Generalrecommendations.....................................................................................................................................................14
4.2 Mountingonthepipe..................................................................................................................................................................14
4.3 Electricalconnection...................................................................................................................................................................15
4.3.1 Cableplugs...........................................................................................................................................................................15
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4.3.2 Versionwith2transistoroutputsand1currentoutput...................................................................16
4.3.3 Versionwiththecurrentoutput............................................................................................................................17
5.1 Generalrecommendations.....................................................................................................................................................18
5.2 Functionalities...................................................................................................................................................................................18
5.3 Displayandprogrammingkeys...........................................................................................................................................20
5.4 Normalmode......................................................................................................................................................................................21
5.5 Calibrationmode.............................................................................................................................................................................22
5.6 DefaultsettingsoftheCalibrationmode....................................................................................................................31
5.7 TestMode.............................................................................................................................................................................................32
5.8 DefaultsettingsoftheTestmode.....................................................................................................................................34
5.9 Customersettings..........................................................................................................................................................................34
5.10Authorizedvaluesfortheprogrammableparameters......................................................................................36
6.1 Cleaning.................................................................................................................................................................................................38
6.2 Errormessages................................................................................................................................................................................38
6.3 Aproblem?...........................................................................................................................................................................................39
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0-2 4 7
0-5 10 12
0-10 20 25
0-20 40 50
0-50 100 120
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- The 8311 transmitter 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,
mbar, psi, atm, kPa, MPa, MH2O, mmHg.
- The measuring element must be solidly screwed onto its support.
There will be no manufacturer warranty for damages caused by unexpec-
ted handling or wrong usage of the device. The warranty on the device
becomes invalid if any modification or change is made on the device.
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- 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.
- EMC: EN 50 081-1, 61 000-6-2
- Security: EN 61 010-1
- Vibration: EN 60068-2-6
- Shock: EN 60068-2-27
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The pressure transmitter 8311-2 wires is made up of an electronic mo-
dule and a measuring element. It may switch a solenoid valve, activate an
alarm or establish a control loop.
The adjustments can be carried out by means of the three keys located
under the display.
The transmitter housing can be turned by 180°.
The transmitter 8311 can be inserted in a fitting 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.
The transmitter 8311 uses a piezo-resistive ceramic cell.
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12-30 VDC 0-2 bar 4-20 mA + 2xPNP (NPN) 1) M12 connector 444507 444762 551739
12-30 VDC 0-2 bar 4-20 mA EN 175301-803 connector 444635 444640 444768
12-30 VDC 0-5 bar 4-20 mA + 2xPNP (NPN) 1) M12 connector 444506 444763 551740
12-30 VDC 0-5 bar 4-20 mA EN 175301-803 connector 444636 444641 444769
12-30 VDC 0-10 bar 4-20 mA + 2xPNP (NPN) 1) M12 connector 444503 444764 551741
12-30 VDC 0-10 bar 4-20 mA EN 175301-803 connector 550338 444642 444770
12-30 VDC 0-20 bar 4-20 mA + 2xPNP (NPN) 1) M12 connector 444504 444765 551742
12-30 VDC 0-20 bar 4-20 mA EN 175301-803 connector 550339 444760 551737
12-30 VDC 0-50 bar 4-20 mA + 2xPNP (NPN) 1) M12 connector 444505 444767 551743
12-30 VDC 0-50 bar 4-20 mA EN 175301-803 connector 444637 444761 551738
1) 2xPNP by default, can be modified into NPN via straps on the electronic board
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5-pin M12 cable plug, to be wired
5 pin M12 cable plug, moulded on a shielded cable (2 m)
EN175301-803 cable plug (type 2508) with cable gland
EN175301-803 cable plug (type 2509) with NPT 1/2’’ reduction
FKM gasket
EPDM gasket
PRESS: 8311 4-20 mA
CERAMIC 12-30VDC
2xNPN(PNP) 30V/0,7A
0-50 bar
S-N:00033
551743A W43LG
Made in France
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1. Measured quantity and type of transmitter
2. Current output
3. Power supply
4. Transistor output data
5. Pressure range
6. Protection class: protective insulation
7. Manufacturer code
8. Serial number
9. Order code
10. Sensor material
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Pipe diameter any type of pipe with a 1/2‘’ threaded connection piece (G, NPT or Rc)
Medium temperature -20 °C to +100 °C, +100 °C with a max. ambient temperature of +40 °C
Measuring range 0-2 bar, 0-5 bar, 0-10 bar, 0-20 bar or 0-50 bar
Accuracy, typical
- if 0 °C < T < 70 °C ±1% of the full scale (full scale = max. value of the measuring range)
- if -20 °C < T < 0 °C or
70 °C < T < 100 °C ±1% ±0.03% of the full scale /°C (full scale = max. value of the measuring range)
Repeatability, typical 0.06%
Min.resolution 1,33 mbar (0-2 bar cell), 3,33 mbar (0-5 bar cell), 5 mbar (0-10 bar cell)
10 mbar (0-20 bar cell), 25 mbar (0-50 bar cell)
Measuring element ceramic cell
Protection rating
of the housing IP 65, connector being plugged-in and tightened (and a cable with a 6-7 mm ø with an
EN 175301-803-connector)
Installation class
(overvoltage class) 2
Power supply (V+) 12-30 VDC
Max current consumption 30 mA (+700 mA max. per transistor output used)
Altri manuali per 8311
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