Masoneilan SVI II AP Digital Positioner Quick Start Guide
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SVI II AP Maintenance
The SVI II AP was designed based on a modular concept. All components are interchangeable
allowing for easy, quick component swapping.
The only maintenance procedures recommended for the SVI II AP are:
Remove and install the cover
Remove and install the I/P module
Remove and install the pneumatic relay
Upgrade to display cover
Do not remove the instrument cover or connect to
an electrical circuit in a Hazardous Area unless the
power is disconnected.
If natural gas is supplied, natural gas may escape
from the SVI II AP on removal of the cover or
components.
Repair
Replacement of the Pneumatic Relay, I/P and cover (with or without display) are the only field re-
pairs permitted.
Only qualified service personnel are permitted to make repairs.
Only factory-supplied parts are permitted. This includes not only the major assemblies but also
mounting screws and O rings. No substitutions with non-Masoneilan parts are permitted.
Detailed replacement procedures are described in the Instruction Manual. The following summa-
ry assures the integrity of the SVI II AP.
Tools Needed for Cover Replacement
5 mm hex key for the cover
3 mm hex key for the lanyard
WARNING
4. Maintenance