2-2
2.1 Installation Location Selection Criteria
This device has been designed to withstand harsh environmental conditions, but for
maximum performance, select an installation location that conforms to the criteria.
2.1.1 Installation location selection criteria
Install this device in a location that satisfies the conditions below.
• Operating temperature range that conforms to the explosion-protection require-
ments
• Relative humidity of 10 to 90%
• Ambient temperature change rate of not more than ±20°C/hour.
• Magnetic field induction of not more than 400 A/m (and avoid locations near
large-scale transformers, high-frequency (e.g., microwave) furnaces, etc.)
• Do not use a transceiver near the device.
• Vibration of not more than 20 m/s
2
(5 to 400 Hz) (model AVP300/301/302 and
AVP200/201/202 main unit)
• Vibration of not more than 100 m/s
2
(5 to 2000 Hz) (model AVP200/201/202 valve
travel detector section)
Note
The vibration conditions for this device are prescribed in terms of the vibration at the
positioner.
2.1.2 Instrumentation air
Since this device employs a flapper nozzle structure in the electro-pneumatic module,
if the instrumentation air is dirty or contains oil, moisture, or the like, the operation of
the positioner could be impeded, or an unrecoverable failure could be caused. For this
reason, the quality of the instrumentation air to be supplied to the device is defined as
follows (taken from JIS C1805-1 [2001]):
• Solid matter: there must be no particles with a diameter that exceeds 3 μm.
• Oil: there must be less than 1 ppm in terms of mass
• Supply air humidity: dew point temperature must be at least 10°C lower than tem-
perature of the body of the device
Follow the specifications stated above when selecting a compressor and a main-line type
or end-installation type compressed air cleaner (filtration device).
1) Compressed air cleaner for main lines
The specifications above can be satisfied by selecting a main line filter, micro-alescer,
or other compressed air cleaner for main lines produced by SMC Corporation or CKD
Corporation, which are well-known as manufacturers of compressed air cleaners.
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