9
Storage
Safety
Storage
When an extended storage period is expected, observe the following precautions:
❑ If at all possible, store the positioner in factory-shipped condition, that is, in the
original shipping container.
❑ Choose a storage location that satisfies the following requirements:
❑ A location that is not exposed to rain or water.
❑ A location subject to a minimum of vibration or impact.
❑ The following temperature and humidity range is recommended. Ordinary
temperature and humidity (25 °C, 65%) are preferable.
❑ Temperature: –40 to 85 °C
❑ Humidity: 5 to 100% RH (at 40 °C)
❑ The performance of the positioner can be impaired if stored in an area
exposed to direct rain and water. To avoid damage to the positioner, install it
immediately after removal from the shipping container. Follow wiring
instructions in this manual.
Choosing the Installation Location
Although the advanced valve positioner is designed to operate in a vigorous
environment, to maintain stability and accuracy, the following is recommended:
Ambient Temperature It is preferable not to expose the instrument to extreme temper-
atures or temperature fluctuations. If the instrument is exposed
to radiation heat a thermal protection system and appropriate
ventilation is recommended.
Environmental
Requirements
Do not allow the positioner to be installed in a location that is
exposed to corrosive atmospheric conditions.
When using the positioner in a corrosive environment, ensure
the location is well ventilated. Protect the unit and its wiring
from exposure to rainwater.
Impact and Vibration Install the positioner in a location that is subject to a minimum
amount of impact and vibration.
Use of a Transceiver
Although the positioner is designed to resist influence from high
frequency noise, use of a transceiver in the vicinity of installa-
tion can cause problems. Installing the transmitter in an area
free from high frequency noise (RFI) is recommended.
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