Burkert 8311 User manual

Instruction manual
PRESSURE TRANSMITTER
8311
© Bürkert 2003–2022 Subject to technical change without notice
00559850_2206/03

ENGLISH ENGLISH
Pressure transmitter 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 Ordering table of accessories and spare parts........................................................... 9
2.4 Description of the device label ................................................................................... 9
3 TECHNICAL DATA �������������������������������������������������������������������������������������������������������������� 10
4 INSTALLATION ������������������������������������������������������������������������������������������������������������������� 13
4.1 General recommendations....................................................................................... 13
4.2 Mounting on the pipe............................................................................................... 13
4.3 Electrical connection................................................................................................ 14
4.3.1 Cable plugs ............................................................................................................. 14

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4.3.2 Version with 2 transistor outputs and 1 current output ............................................. 15
4.3.3 Version with the current output ................................................................................ 16
5 PROGRAMMING���������������������������������������������������������������������������������������������������������������� 17
5.1 General recommendations....................................................................................... 17
5.2 Functionalities.......................................................................................................... 17
5.3 Display and programming keys................................................................................ 19
5.4 Normal mode .......................................................................................................... 20
5.5 Calibration mode ..................................................................................................... 21
5.6 Default settings of the Calibration mode................................................................... 30
5.7 Test Mode ............................................................................................................... 31
5.8 Default settings of the Test mode............................................................................. 33
5.9 Customer settings ................................................................................................... 33
5.10 Authorized values for the programmable parameters ............................................... 35
6 MAINTENANCE������������������������������������������������������������������������������������������������������������������ 37
6.1 Cleaning .................................................................................................................. 37
6.2 Error messages ....................................................................................................... 37
6.3 A problem?.............................................................................................................. 38
7 CONNECTION EXAMPLES������������������������������������������������������������������������������������������������ 39

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Pressure transmitter 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 4 7
0...5 10 12
0...10 20 25
0...20 40 50
0...50 100 120
- ThedisplaywithintheNormalmodeasheswhenthepressure
is outside the measuring range.

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1.1 Utilisation
- The 8311 transmitter has only been designed to measure the rela-
tive 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.
When using an absolute pressure unit (mmHg, atm, MH2O), be
awarethattheairpressuredisplacement(about1013mbar)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 modication or change is made on
the device.
The device should only be installed and repaired by specialist
sta.Ifanydicultiesmayoccurwiththedeviceduringinstalla-
tion,pleasecontactyournearestBürkertsalesoceforassis-
tance.

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Pressure transmitter 8311
1.2 Precautions at installation and commissioning
- When the device is powered and the cover is open, protection
against electric shocks is not eective.
- 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 transmitter from the pipe, take all the
necessary 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 certicate 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.
1 SAFETY INSTRUCTIONS

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The device conforms to Article4, Paragraph1 of the Pressure Equip-
ment Directive 2014/68/EU under the following conditions:
- Device used on a pipe (PS=maximum admissible pressure;
DN=nominal diameter of the pipe)
Type of uid Conditions
Fluid group1, Article4, Paragraph1.c.i DN≤25
Fluid group2, Article4, Paragraph1.c.i DN≤32
or PSxDN≤1000
Fluid group1, Article4, Paragraph1.c.ii DN≤25
or PSxDN≤2000
Fluid group2, Article4, Paragraph1.c.ii
DN≤200
or PS≤10
or PSNxDN≤5000
- Device used on a vessel (PS=maximum admissible pressure)
Type of uid Conditions
Fluid group1, Article4, Paragraph1.a.i PS≤200bar
Fluid group2, Article4, Paragraph1.a.i PS≤1000bar
Fluid group1, Article4, Paragraph1.a.ii PS≤500bar
Fluid group2, Article4, Paragraph1.a.ii PS≤1000bar

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Pressure transmitter 8311
2 DESCRIPTION
2.1 Design
The pressure transmitter 8311-2 wires 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 adjustments can be carried out by means of the three keys lo-
cated under the display.
The transmitter housing can be turned by 180°.
The transmitter 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 connec-
tor and/or a steerable M12 multipin connector.
2.2 Measuring principle
The transmitter 8311 uses a piezo-resistive ceramic cell.
The cell and the electronic board are calibrated together ex
works; do not use one of these elements with another transmitter.

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2.3 Ordering table of accessories and spare parts
Description Order code
5-pin M12 cable plug, to be wired 917116
5-pin M12 cable plug, moulded on a shielded cable (2m) 438680
EN175301-803 cable plug (type 2518) with cable gland 572264
EN175301-803 cable plug (type 2509) with NPT 1/2" reduction 162673
FKM gasket 438177
EPDM gasket 440693
2.4 Description of the device label
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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Pressure transmitter 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...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 IP65, connector being plugged-in and tightened (and a cable with a 6...7mm ø with an
EN175301-803-connector)
Electrical features
Installation class
(overvoltage class) 2
Power supply (V+) 12...30VDC
Max current consumption 30mA (+700mA max. per transistor output used)
3 TECHNICAL DATA

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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 modied by means of straps, open collector, max. 700mA,
NPN output: V+ minus 0.5VDC/ 0VDC and PNP output: 0.5VDC/ 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 lter 0 (default setting)
Max. line impedance Rload, depends on the supply voltage (V+), the loads (RL) on the 2 transistor outputs and
I1and I2 currents
R
load =
V+ - 10 - R
L
(I
1
+ I
2
)
0,022
8311 V+
I1
I2
0,022 AR
load
RL
RL

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Pressure transmitter 83113 TECHNICAL DATA
Protection against
short-circuits Yes, for transistor outputs
Type of cable recommended Shielded, wire section: 0.14...0.5mm2
Electrical connection
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 2518 supplied)
Materials
Housing Polycarbonate, ber 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)
Environment
Ambient temperature 0°C...+60°C, max.+40°C if the uid temperature is near +100°C
Relative humidity <80%, non condensated

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Pressure transmitter 83114 INSTALLATION
4.1 General recommendations
Always check the chemical compatibility of the materials the trans-
mitter is made of with the products it may be in contact with, for
instance: alcohols, 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 oce.
4.2 Mounting on the pipe
The pressure transmitter 8311 can be inserted in a tting before being
mounted on any type of pipe.
During mounting, follow the instructions given with the tting.
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
Do not unscrew the
metallic part from
the pipe when read-
justing the housing.
ENTER O
U
T0....9

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4.3 Electrical connection
Always ensure the power supply is switched o 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 (ltered and regulated).
- Install a properly dimensioned fuse for the power supply.
- Connect the shielding to the earth, at both ends of the cable,
using a connection as short as possible.
4.3.1 Cable plugs
12
2518 cable plug (supplied)
- Unscrew the pressure screw[1] and remove the
pressure ring[2] and the seal[3].
- Remove contact holder[5] from the cover[4].
- Insert the cable into pressure screw[1], through
the pressure ring[2], through the seal[3] and
nally through the cover[4].
- Connect the wires on the contact holder[5].
- Position the contact holder[5] in steps of 90° then
put it back into cover[4], pulling gently on the cable
so that the wires do not clutter the housing.
- Tighten the pressure screw[1] (1.5...2Nm).
- Place the seal[6] between the connector and the
xed connector on the device and then plug the
type 2518 connector into the xed connector.
-
Insert and tighten the central screw[7] (0.5...0.6Nm)
to ensure tightness and correct electrical contact.
Multipin M12 cable plug
(not supplied)
- Loosen threaded ring[1]
- Remove part[2] from the cable plug
- Wire acc. to pin assignment (see 4.3.2).
1
2
3
4
5
6
7

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Pressure transmitter 8311
4
5
3
12
0 VDC
V+
(12...30VDC)
PNP
0 V
V+ V+
IN
0 V
A
OUT1/OUT2
(*)
NPN
0 V
V+ V+
IN
0 V
A
OUT1/OUT2
(*)
4 INSTALLATION
4.3.2 Version with 2 transistor outputs and 1 current output
NPN output PNP output
Sensor Sensor Receiver
Load
Receiver
Load
Wiring of M12 xed connector
OUT2 (PNP1) / NPN)
Output
Output
(*) Functional earth
Pin number of the M12 cable available
as an accessory (order code 438680) Wire colour
1 brown
2 white
3 blue
4 black
5green/yellow or
grey
The transmitter is tted with a steerable M12 xed
connector:
Unfasten counternut. Turn the xed connector to
the right position, but by max.360° to avoid twis-
ting of the cables inside the housing. Fasten coun-
ternut using the appropriate tool while maintening
the xed connector in the right position.
OUT1 (PNP1) / NPN)

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1) PNP, default; To change the conguration 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 (Attention:ifoneoutputisconguredasanNPN
outputandtheotherasaPNPoutput,the4...20mAoutputisnomoreutilisable)
- Replace the cover in its initial orientation then tighten the 4 screws in an alternating pattern
- Plug connector M12 back
PNPconguration NPNconguration
Operating safety
Always check the wiring of the cable plugs to ensure the good opera-
ting of the device.
4.3.3 Version with the current output
0 V
V+ V+
0 V
A
(*)
0 V
V+ V+
0 V
A
(*)
4...20mA current output Wiring of EN175301-803 xed connector
or
1
32
0V
V+
(12...30 VDC)
Not connected

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Pressure transmitter 8311
5.1 General recommendations
Keep in mind that the process may be inuenced by all the parame-
ter settings you make. Fill in the table on pages 33/34 with your
settings of the transmitter.
5.2 Functionalities
The device has three operating modes:
NormalMode(seepage20)
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.
The access to the Calibration and the Test modes can be protec-
ted by a 4-digit code, disabled by default; It can be programmed
in the Calibration mode.
5 PROGRAMMING

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CalibrationMode(seepage21)
Access to the programming of all the parameters (unit, transistor
outputs, lter, 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 H2Oin. H2Oin. Hg kp/cm2
33.4553 401.463 29.53 1.01972
TestMode(seepage31)
Entering a theoretical pressure value to test the conguration pro-
grammed in the Calibration mode. Access to zero point adjustment,
K-factor adjustment, current output adjustment, reset of the Calibra-
tion and/or Test modes. From the Test mode, you can go back to the
Normal Mode.

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Pressure transmitter 8311
1
2
5 PROGRAMMING
5.3 Display and programming keys
To display the measured value and the
conguration (8characters:
4numeric and 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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1
Code
OK ?
ENTER
0......9
BAR
1.000
ma
5.41
MIN
0.01
Max
1.80
2
3
> 5 s
0......9
ENTER
+
> 5 s
ENTER
+CODE
0000
ON
OFF
Code
OK ?
ENTER
CODE
0000
ON
OFF
0......9
0......9
*
5.4 Normal mode
Display of the measured
pressure.
N.B.: When the displayed
value ashes, the min. or
max. value of the pressure
range has been exceeded.
Display of the output cur-
rent value (in mA).
To go back to the previous
function.
Alternating display of the
min. and max. pressures
reached in the process
since the last reset.
To go to the next function.
The bargraph is displayed at
any menu level.
(seepage21:Calibrationmode)
(seepage31:TestMode)
Enter the Calibration mode to enable and program the access
CODE to the Calibration and Test menus.
* Press
ENTER
for 5s to reset the min. and max. pressure values.
1
2
3
1
CODE
function
status?
yes
no
yes
no
Press
simul-
taneously
Press
simul-
taneously
CODE
function
status?