Technical Data - Burkert 6712 Manuel D'utilisation

english
1 operATing insTruCTions
The operating instructions contain important information.
▶ Read the instructions carefully and follow the safety instructions in
particular.
▶ Keep the instructions in a location where they are available to every user.
▶ The liability and warranty for Type 6712 are void if the operating
instructions are not followed.
2 inTended use
The solenoid valve Type 6712 is designed for analytical, medical and
laboratory applications. It is predominantly used to dose and fill liquids and
gases.
▶ Do not use Type 6712 outside without taking suitable protective
measures.
▶ Do not use rectified AC voltage as the power supply without smoothing.
▶ Operate only when in perfect condition and pay attention to correct
storage, transportation, installation and operation.
3 bAsiC sAfeTy insTruCTions
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▶ Before loosening lines or valves, turn off the pressure and vent the lines.
Risk of burns/risk of fire if used continuously through hot device
surface.
▶ Keep Type 6712 away from highly flammable substances and media and
do not touch with bare hands.
▶ Do not obstruct the heat release required for operation. Leaking
medium when the diaphragm is worn.
▶ Regularly check for leaking medium.
▶ If the media is hazardous, protect the environment from danger To
prevent injury, ensure the following:
▶ Secure equipment/device from unintentional actuation.
▶ Do not use in potentially explosive area.
▶ Do not make any internal or external changes.
▶ Only trained technicians may perform installation and maintenance work.
▶ After an interruption in the power supply, ensure that the process is
restarted in a controlled manner.
▶ Observe the general regulations of technology.

4 TeChniCAl dATA

4.1 Operating Conditions
Permitted temperatures for diaphragm material FKM:
environment: +15 ... +55 °C
medium: +15 ... +55 °C
Extended
temperature ranges: depending on the materials (see data sheet).
Media: aggressive, neutral, gaseous and liquid media
which do not attack housing and seal materials
(see Chemical Resistance Chart at
www.burkert.com). Check that resistance is
adequate in individual cases.
Degree of protection: IP40
Protection class: III acc. to IEC 61140 or
NEC Class II Power Supply
4.2 Conformity
Type 6712 conforms with the EC Directives according to the EC
Declaration of Conformity.
4.3 Standards
The applied standards, which verify conformity with the EC Directives,
can be found on the EC-Type Examination Certificate and / or the EC
Declaration of Conformity.
4.4 Electrical Data
see type label.
5 insTAllATion / disAssembly
5.1 Fluid Installation
Risk of injury from high pressure in the equipment.
▶ Before loosening lines or valves, turn off the pressure and vent the
Installation position: any position, preferably with actuator above.
→
→
Risk of medium escaping if seal is seated incorrectly.
▶ Make sure that the supplied seal fits properly.
▶ Use only connection plate of adequate quality and with a flat
Danger – high pressure.
Fig. 1:
5.2 Electrical Installation
Electrical power supply:
Maximum residual voltage:
Power consumption:
5.3 Disassembly
Risk of injury from hazardous media.
▶ Before loosening lines or valves, flush out hazardous media,
6 mAinTenAnCe
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7 mAlfunCTions
If malfunctions occur, check
• that the fluid connections have been correctly assigned according to the
• whether the operating pressure is within the permitted range,
• the power supply and valve control
• the electric connections have the correct polarity.
8 TrAnsporTATion, sTorAge, disposAl
• Transport and store Type 6712 in shock-resistant packaging to protect
• Permitted storage temperature: -10 ... +65 °C.
• Permitted transportation temperature: –40 ... +70 °C.
• Dispose of the device and packaging according to the applicable
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lines.
Clean pipelines and flange connections.
Install dirt filter in the direction of flow in front of the valve (mesh
size 5 μm).
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surface.
Manifold
Assembly
(including residual ripple)
1 % of the nominal voltage
0,9 W
Continuous switching behavior – the opening of the valves follows
the power supply voltage. A power reduction is not possible. If the
polarity is not correct, the valve will not function (see data sheet).
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depressurize and drain the lines.
Regularly check for leaking medium.
operating principles,
against moisture and dirt.
disposal and environmental protection regulations.
Type 6712
→
Drill holes according to drilling
pattern (dimensions see data
sheet).
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Correctly assign fluid
connection configuration 1
and 2 on valve and
connection plate.
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Attach valve with screws.
Recommended tightening
torque when using metric
screws 0.11...0.15 Nm
(different value for PT screws).
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Check installation for leaks.
DC, Tolerance ± 10 %