5.2 Improper use
Any improper use of the components is not admissible.
Improper use of the product includes:
5
SAFETY NOTES
5.3 Installation
Installation must be performed following the recommendations contained in the valves technical tables.
5.1 Intended use
Atos proportional valves are intended for integration in industrial systems and machines or for the assembly with other components to form a
machine or a system. They may only be operated under the environmental and operating conditions described in the valves technical tables.
WARNING: hot surface
The valve considerably heats up during operation. Allow the valve to cool down sufficiently before touching it.
During operation, touch the valve solenoid only by using protective gloves. Please also observe ISO 13732-1 and EN 982.
WARNING: fixing bolts
For the valve mounting, use only class 12.9 bolts, with dimensions and length reported in the valves technical tables.
Observe the specified tightening torque.
Using inappropriate fixing bolts or insufficient tightening torque, can cause the valve to loosen with consequent leakage of fluid
under pressure which may cause personal injury and property damage.
CAUTION: pressurized systems
When working at hydraulic systems with stored energy (accumulator or cylinders working under gravity), proportional valves may
even be pressurized after the hydraulic power supply has been switched off.
During assembly and disassembly works, serious injury may be caused by a powerful leaking of hydraulic fluid jet.
Ensure that the whole hydraulic system is depressurized and the electrical control is de-energized.
CAUTION: missing equipotential bonding
Electrostatic phenomena, an incorrect earthing or missing equipotential bonding may lead to malfunctions or uncontrolled move-
ments at the machine and thus cause injuries.
Provide for correct earthing or proper equipotential bonding.
CAUTION: penetrating water and humidity
In case of use in humid or wet environments, water or humidity may penetrate at electrical connectors or into the valve electronics.
This may lead to malfunctions at the valve and to unexpected movements in the hydraulic system which may result in personal
injury and damage to property:
• only use the proportional valve within the intended IP protection class
• ensure that all seals and caps of the plug-in connections are tight and intact
NOTICE
High-pressure water jets could damage the valve seals.
Do not use a high-pressure washer for the valve cleaning.
CAUTION
Use of the valve outside the approved temperature range may lead to functional failures like overheating of the valve solenoid/driver.
Only use the valve within the specified ambient and fluid temperature range.
For safety-relevant applications, use only safety proportional valves /U or /K, indentified by the Safety Certified logo
The superior control logic in connection with the proportional valve, is responsible for the control of the machine's motion
sequence and also for its safety-related monitoring.
WARNING: non-compliance with functional safety
NOTICE: disconnection and connection of plug-in connectors
Do not plug-in or disconnect the electric connector as long as the voltage supply is ON.
NOTICE: impact
Impact or shock may damage the valves. Never use the valves as step.
NOTICE: dirt and foreign particles
Penetrating dirt and foreign particles lead to wear and malfunctions of the valves.
During assembly, be careful to prevent foreign particles such as metal chips getting into the valve or into the hydraulic system
Do not use linting fabric for the valve cleaning.
• use in explosive environments
• incorrect storage
• incorrect transport
• lack of cleanliness during storage and installation
• incorrect installation
• use of inappropriate or non-admissible fluids
• operation outside the specified performance limits
• operation outside the approved temperature range
Atos spa does not assume any liability for damage caused by improper use. The user assumes all risks involved with improper use.
In case of mechanical or electric failures, risk of death or persons injury could occur.
Functional safety prescriptions according to EN ISO 13849 must be observed in the hydraulic circuit.
Environmental protection
Hydraulic fluids are harmful to the environment.
Leaking hydraulic fluid may leads to environmental pollution.
In case of fluid leakage immediately act to contain the problem.
Dispose of the hydraulic fluid in accordance with the currently applicable national regulations in your country.
Atos components do not contain substances hazardous for the environment.
The materials contained in Atos components are mainly: Copper, Steel, Aluminium, Electronic components, Rubber
Due to the high content of reusable metals, the main components of Atos can be completely recycled after disassembling of the
relevant parts.
