P-1500/P-1700-manual from PMV 14321-99.6
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PMV Positioner storage and handling procedures
PMV Positioners are precision instruments which should be stored and
handled accordingly to avoid problems or damage.
Appropriate precautions should be taken to protect units while in storage.
Warehouse storage
Stored in original PMV shipping containers, units should be stored in an
environmentally controlled area, i.e. clean, cool (15-26°C, 6~80°F) and dry,
out of direct sunlight or weather exposure.
Field storage
Note: Once air supply to the positioner is connected and turned on, internal
air bleed will prevent the ingress of moisture and protect the unit from
corrosion. It is recommended that the air supply be left on at all times.
• If units are installed immediately, tum, and leave on, the air supply.
• If positioner must be stored outdoors, tighten all covers which may
loosened in shipment, make sure all open enclosure entry points are sealed.
Positioners should be wrapped and sealed air and watertight with desiccant
inside the plastic, units should be securely covered with an opaque cover and
not exposed to direct sunlight, rain or snow.
Potential damage mechanism
When units are stored in hot, humid climates, the daily heating/cooling cycle
will cause air to expand/ contract and be drawn in and out of the positioner
housing.
Dependent on the local temperature variations, humidity, dew points and the
time in storage condensation could occur and accumulate inside causing
erractic operation or failure due to water or corrosion. The potential for
condensation damage is especially high in southern climates and aggravated
if units are exposed to direct sunlight.
For further assistance, please contact your nearest PMV office.
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