Bürkert 8311 User manual
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
2
3
4
5
6
8
9
10
7
1
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)
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Protection against
voltage peaks yes, for the power supply and the transistor outputs
Protection against
polarity reversal yes, for the power supply and all the outputs
Transistor outputs 2 PNP or 2 NPN, can be modified by means of straps, open collector, max. 700 mA,
NPN output: V+ minus 0.5 VDC / 0 VDC and PNP output: 0.5 VDC / V+
4-20 mA output possible adjustment of the 4 mA between 3,5 and 4,5 mA;
possible adjustment of the 20 mA between 19 and 21 mA
Response time (10% - 90%): 300 ms with filter 0 (default setting)
Max. line impedance Rload, depends on the supply voltage (V+), the loads (RL) on the 2 transistor outputs and
I1 and I2 currents
Rload = V+ - 10 - RL(I1+ I2)
0,022
8311 V+
I1
I2
0,022 A Rload
RL
RL
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Protection against
short-circuits yes, for transistor outputs
Type of cable recommended shielded, wire section between 0.14 and 0.5 mm2
Version with 2 transistor
outputs + 1 current output 5 pin M12 cable plug (not supplied)
Version with 1 current output EN 175301-803 cable plug (type 2508 supplied)
Housing polycarbonate, fiber glass reinforced
Front plate polyester
Parts in contact
with the medium stainless steel 316L (DIN 1.4404), FKM gasket in standard (EPDM as an option),
ceramic cell (Al2O3)
Ambient temperature 0 °C to +60° C, max. +40 °C if the fluid temperature is near +100 °C
Relative humidity < 80%, non condensated
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54 22
SW 27
G1/2'' - NPT1/2'' - Rc1/2''
92
18
54
EN 175301-803
30
61
M12
SW 22
54
SW 27
G1/2'' - NPT1/2'' - Rc1/2''
92
18
61
40
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Always check the chemical compatibility of the materials the transmitter
is made of with the products it may be in contact with, for instance: alco-
hols, strong or concentrated acids, aldehydes, bases, esters, aliphatics,
aromatics, ketones, aromatics or halogenated hydrocarbons, oxidizing
agents and chlorinated products. For more information, please contact
your Bürkert sales office.
The pressure transmitter 8311 can be inserted in a fitting before being
mounted on any type of pipe.
During mounting, follow the instructions given with the fitting.
Always replace the cover in its initial position.
The housing can then be rotated by 180°.
Do not tighten the transmitter
using the housing;
use an appropriate tool.
For a G1/2”-version,
ensure the gasket is in
place
ENTER
O
U
T0....9
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Always ensure the power supply is switched off before working on the
device. All the cable plugs must be plugged out. Use:
- a shielded cable with an operating temperature > +80 °C.
- a high quality voltage supply (filtered and regulated).
1 2
4
3
1
5
2
- To open the plug, unfasten screw [1]
- Remove part [3] from part [2].
- Unscrew cable gland [5].
- Insert cable into part [2] via cable gland.
- Wire part [3] (see 4.3.3).
- Replace part [3] into part [2], by 90°-steps.
- Tighten cable gland [5]. Place gasket [4] between the cable plug and
the fixed connector of the transmitter and plug the 2508 onto the fixed
connector.
- Tighten screw [1] to ensure tightness and correct electrical contact.
- Loosen threaded ring [1]
- Remove part [2] from the cable plug
- Wire acc. to pin assignment (see 4.3.2).
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PNP
0 V
V+ V+
IN
0 V
A
OUT1/OUT2
(*)
NPN
0 V
V+ V+
IN
0 V
A
OUT1/OUT2
(*)
4
5
3
12
0 VDC
V+
(12-30 VDC)
Sensor Sensor
Receiver
Load
Receiver
Load
OUT2 (PNP1) / NPN)
Output
Output
(*) Functional earth
1 brown
2 white
3 blue
4 black
5 grey
The transmitter is fitted with a steerable M12 fixed
connector:
Unfasten counternut. Turn the fixed connector to the
right position, but by max. 360° to avoid twisting of the
cables inside the housing. Fasten counternut using the
appropriate tool while maintening the fixed connector
in the right position.
OUT1 (PNP1) / NPN)
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1) PNP, default; To change the configuration from PNP to NPN, do the following:
- unplug the M12 power supply connector
- unscrew the 4 wires of the transmitter cover
- change the position of the 2 straps
- Replace the cover in its initial orientation then tighten the 4 screws in an alternating pattern
- plug connector M12 back
Always check the wiring of the cable plugs to ensure the good operating
of the device.
0 V
V+ V+
0 V
A
(*)
0 V
V+ V+
0 V
A
(*)
Not connected
1
32
0V
V+
(12-30 VDC)
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Keep in mind that the process may be influenced by all the parameter
settings you make. Fill-in the table on pages 35 -36 with your settings of
the transmitter.
The device has three operating modes:
Display of the measured pressure, the value of the output current and the
values of the min. and max. process pressures.
From the Normal mode, you can access the Calibration and Test modes.
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Access to the programming of all the parameters (unit, transistor outputs,
filter, 4-20 mA output, bargraph, behaviour of the outputs if the pressure
is outside the measuring range and/or when an error is displayed, access
code to the Calibration and Test modes).
From the Calibration mode, you can go back to the Normal Mode.
Reminder:
1 bar = mbar psi atm kPa MPa mH2O mmHg
1000 14.5038 0.98692 100 0.1 10.1972 750.064
1 bar = ft H2O in. H2O in. Hg kp/cm2
33.4553 401.463 29.53 1.01972
Entering a theoretical pressure value to test the configuration program-
med in the Calibration mode. Access to zero point adjustment, K-factor
adjustment, current output adjustment, reset of the Calibration and/or
Test modes. From the Test mode, you can go back to the Normal Mode.
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1
2
To display the measured value and the
configuration (8 characters:
4 numeric et 4 alphanumeric charact.)
To modify the digital value (0…9);
To go back to the previous function.
To select the character;
To go to the next function.
To validate a function;
To validate the entered data.
The LED lights up as soon as a
transistor output is switched and
the icon «1» for OUT1 or «2» for
OUT2 is displayed.
To indicate the feature or the
selected unit.
Bargraph, active at any menu level.
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