StoneL publication 105431revC
7 PI 70 en Prism PI | 9
3 Maintenance, repair and installation
3.1 Maintenance and repair
No routine maintenance of Prism units is required when installed in environments for which they are designed. If installed in severe environments,
pneumatic components may require replacement at more frequent intervals for maximum performance. Repair of Prism units must be done by
StoneL or by qualied personnel that are knowledgeable about the installation of electromechanical equipment in hazardous areas. All parts
needed for repair must be purchased through a StoneL authorized distributor to maintain warranty and to ensure the safety and compliance of
the equipment.
3.2 Installation
Attention: If required, the Prism housing can be grounded
to earth potential by the internal lug. (See Assembly
drawing 1.6 item 5 on page4)
Attention: In order to maintain enclosure type and IP
ratings, cover shall be tightened by hand until it stops on
the surface of the base not to exceed 10 ft. lbs (13.5Nm).
Do not use any tool to tighten the cover.
Attention: If the unit is used in a manner not specied by
StoneL, the protection provided by it may be impaired.
WARNING
Solenoid power supplied must be limited with a fuse or circuit
breaker rated to 2 Amps maximum.
Field wiring
• It is the responsibility of the installer, or end user, to install this
product in accordance with the National Electrical Code (NFPA 70)
or any other national or regional code dening proper practices.
• This product comes shipped with conduit covers in an eort to
protect the internal components from debris during shipment and
handling. It is the responsibility of the receiving and/or installing
personnel to provide appropriate permanent sealing devices to
prevent the intrusion of debris or moisture when stored or installed
outdoors.
Caution: To maintain safety, only power supplies that
provide Double/Reinforced insulation, such as those with
PELV/SELV outputs, shall be used. (As applicable)
3.3 Special conditions of use
For units with quick connect receptacles, when installed in Division 2 areas, an appropriate FM approved mating cord must be used in
conjunction with tamper proof guard at the mating point that requires a tool to remove, rendering the connection not normally arcing.