Pneumatic Safety; Electrical Safety; Correct Use - STI FasTrak Installation And Maintenance Instruction Manual

•
It is recommended that lid is rest closed in normal operation.

WARNING_
Always observe the specifications and special requirements for your positioner stipulated in the applicable certificate.

3.6 Pneumatic safety

•
Observe the accident prevention rules of the H&S organizations.
•
Observe the safety instructions for the pneumatic actuator used.

NOTE_
• Take suitable precautions to ensure that even in case of malfunctions the positioner's max. admissible
operating pressure is not exceeded. Otherwise, the positioner and/or the actuator may be damaged.
•
The positioner must be supplied with instrument air free from oil, water and dust according to ISO 8573-1,
Class 3.
o Purity: max. particle size 5 µm, max. particle density 5 mg/m3.
o Oil content: max. concentration 1 mg/m3.
o Pressure dew point: maximum value 10 K below operating temperature.
o Before using these products with fluids other than air or for non-industrial applications, consult STI.
3
Before connecting the air pipes blow them out to remove dust, splinters and other particles.

3.7 Electrical safety


WARNING_
•
Observe the common safety regulations and the accident prevention rules of the H&S organizations.
•
Observe the common standards and safety regulations for the installation and operation of electrical systems.
•
When connecting the device, observe all electrical specifications in these operating instructions or in the
drawing.
•
For the electrical installation of explosion-protected devices, observe all standards, regulations and directives
governing explosion protection and applicable for the construction and use of explosion-protected systems, the
directives for explosion protection (EN 60079), and the special requirements and specifications for your
devices. In particular make sure that:
o Used in situations that comply with the certification conditions stated in this handbook.
o Maintained only by qualified personnel with adequate training on hazardous area instrumentation.
o This product is not intended for use in life support systems.
o The use of a ground strap between the FT positioner housing and a suitable earthed point is necessary.
o The supply circuit must be protected to prevent current exceeding the fixed limit.
o The equipment must be provided with cable entries and filler plugs certified according to the required
certification.

3.8 Correct use

The FT positioner is an electro-pneumatic positioner for pneumatic final control elements. It is designed for being
attached to linear and rotary actuators following the instructions in this manual. The positioner may be used only for
the applications listed in these operating instructions. Any other use is considered as incorrect.
The signal current circuit and the input and output circuitry must meet the explosion protection requirements stipulated
in the certificates

DANGER_
Only those persons familiar with the installation, commissioning, operation and maintenance of the FT positioner or
similar instruments who have the required qualification and have read and understood the operating instructions are
authorized to work on the positioner.
These people must be sufficiently trained and experienced and know the relevant standards and regulations to be able
to judge their assigned tasks and recognize potential hazards. Only people who are qualified or have been trained
adequately and who have the required certificates are authorized to work on explosion-protected devices.
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STI S.r.l. – Via Dei Caravaggi 24040 Levate (BG) – ITALY
Manual 4028 – rev.06 11/2018 – FT
INSTRUCTION MANUAL
FasTrak
®
www.imi-critical.com
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