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STI S.r.l. – Via Dei Caravaggi 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 4028 – rev.06 11/2018 – FT - 9 -
In order to keep the device in a safe condition and ensure safe operation, please carefully read and follow the
instructions given in the sections marked with the respective symbols.
The device must be shut down and secured reliably against unintentional restart if it must be assumed that safe
operation is no longer ensured. Possible reasons for this assumption can be:
• visible damage of the device;
• failure of the electrical function;
• exposure to a storage temperature of more than 85°C for a long time period;
• exposure to considerable strain or wear during transport.
Only the manufacturer is authorized to repair the device.
If the device is damaged or faulty do not continue use.
WARNING_
For display version do not hit the display, do not use cleaning solvent for cleaning it and do not use cutting tools
because display is composed by a sensitive diaphragm.
3.1 Device safety instructions
Observe the accident prevention rules of the H&S organizations. The non-observation of the following safety
instructions and of the instruction manuals can result in serious injury. Installation must be carried by our qualified
person.
3.2 Installation
• The electrical connections must be done according to the diagram and label.
• To achieve optimum performance from the FT Positioner, it is recommended that shielded cables be used when
installing the positioner.
• The use of a ground strap between the FT positioner housing and a suitable earthed point is necessary.
• When changing electrical connections inside the FT positioner housing, observe ESD handling precautions.
The use of a conductive, earthed, wrist strap is recommended.
• The pneumatic connections must be done according to the diagram and label, is not allow the FT Positioner
supply pressure to exceed 10 bar.
• The supply circuit must be protected to prevent the voltage or current exceeding the stated limits.
• The equipment must be provided with cable entries and filler plugs certified according to the required
certification.
• The actuator must be installed and used according to the design specification.
• The fluid must be chemically compatible with the gaskets and lubricant used in the installation.
• When FT positioner is installed in a hazardous area, ensure that electrical barriers are used between the FT
positioner and the electrical power sources.
• To prevent injuries always ensure that the air supply is removed from the FT positioner before the Mode
Selection Plate is changed.
• Only trained personnel should permitted to alter the software control parameters stored within the FT positioner
electronics. Incorrect settings may lead to personnel injury and or property damage.
3.3 Maintenance
Before making changes to the pneumatic configuration make sure that the compressed air supply is isolated from the
FT positioner and to avoid unpredictable movement of the actuator always remove the electrical power to the FT
positioner electronics before changing electrical connections.
• Must be done by qualified person.
• Cleaning must be done with a humid cloth (also for display version).
• Use instrument air. Clean and dry. Free of oil and dust according to ISO 8573-1.
Product Disposal
The disposal of this product should be carried out in a way that conforms to the 2007 Weee Directive, and any other
locally applicable directions an regulations.
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