Burkert 6724 Manuel D'utilisation page 2

english
1 oPerATing insTruCTions
The operating instructions contain important information.
▶ Read the instructions and follow the safety instructions.
▶ Keep the instructions handy.
▶ The liability and warranty are void if the operating instructions
are not followed.
2 inTenDeD use
Type 6724 is used to dose, mix, and distribute liquids and gases.
▶ Do not use the device outside without taking suitable protec-
tive measures.
▶ Do not use rectified AC voltage as the power supply without
smoothing. Note polarity!
▶ Operate only when in perfect condition and pay attention to
correct storage, transportation, installation and operation.
3 bAsiC sAfeTy insTruCTions
WArnInG
Danger – high pressure.
▶ 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 6724 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 main-
tenance 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
Damage to valve by exceeding the permitted temperature.
▶ Do not exceed temperature of 110 °C on the metal body.
Permitted temperatures for diaphragm material FFKM:
Environment: +15...+50 °C
Medium: +15...+50 °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!
Degree of protection: IP40
Protection class: III acc. to IEC 61140 or
NEC Class II Power Supply
4.1.1 Pulse variant
Not suitable for continuous current feed.
CAutIon
Danger due to undefined switch position.
▶ When commissioning or restarting the valve, the valve must
be in the correct switch position.
4.2 electrical Data
See data sheet and labeling on the valve.
5 insTAllATion / DisAssembly
5.1 fluid installation
WArnInG
Risk of injury from high pressure in the equipment.
▶ Before loosening lines or valves, turn off the pressure and
vent the lines.
Installation position: any position, preferably with actuator above.
→ Clean pipelines and flange connections.
→ Install dirt filter in the direction of flow in front of the valve
(recommended mesh size 5 μm).
WArnInG
Risk of medium escaping if seal is seated incorrectly.
▶ Make sure that the supplied seal fits properly.
▶ Use only connection plate of adequate surface quality and
with a flat surface.
5.2 electrical installation
Electrical power supply: Tolerance ±10 % (incl. residual ripple)
Power consumption: 1 W to 2 W (see data sheet)
If the polarity is not correct, the valve will not function (see
data sheet).
5.3 Disassembly
WArnInG
Risk of injury from hazardous media.
▶ Before loosening lines or valves, flush out hazardous media,
depressurize and drain the lines.
6 oPerATion
Pulse variant: To switch over, change the polarity of the
voltage pulse.
7 mAinTenAnCe
→ Regularly check for leaking medium.
8 mAlfunCTions
If malfunctions occur, check:
• that the fluid connections have been correctly assigned
according to the operating principles,
• whether the operating pressure is within the permitted range,
• the power supply and valve control,
• the electric connections have the correct polarity.
9 TrAnsPorTATion, sTorAge,
DisPosAl
▶ Transport and store Type 6724 in shock-resistant packaging
to protect against moisture and dirt.
▶ Permitted storage temperature: –10...+65 °C.
▶ Dispose of the device and packaging according to the appli-
cable disposal and environmental protection regulations.
Type 6724
→ Drill holes according to
drilling pattern (dimen-
sions see data sheet).
→ Insert the seals into the
valve.
→ Correctly assign fluid
connection configuration.
→ Attach valve with screws.
Tightening torque for
metric screws in a metal
thread: 0.2...0.25 Nm (the
torque may differ for other
materials)
→ Check installation for
leaks.