Michell Instruments QMA401, Руководство пользователя

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QMA401 User’s Manual
6 97450 Issue 2, March 2018
INSTALLATION
2 INSTALLATION
2.1 Analyzer Storage Instructions
In order for this product to be functional upon installation it should be stored in accordance
with the guidelines below:
• The product must be housed in a sheltered area, out of direct sunlight and
rain.
• The product should be stored to minimize the possibility of sitting in ground
water.
• The temperature within the storage environment should be maintained
between -20 to +60°C (-4 to +140°F).
• The humidity within the storage environment must be non-condensing.
• The storage environment must not expose the analyzer to any corrosive
elements.
• The product may stay assembled with its sample conditioning system (if
supplied).
• All electrical and process connections should remain disconnected and capped.
• All protective coatings should remain in place until installation.
• For prolonged periods of storage, the lid of the packaging crate should be
removed to allow air to circulate.
• Any documentation supplied with the product should be removed from the
packaging crate and stored elsewhere to protect its integrity.
For the period from installation of the product to commissioning start-up, the following
precautions should be followed:
• The product and associated sampling system (if supplied) must remain
isolated from the process gas, and the enclosure should remain closed to
ensure ingress protection is maintained.
• If supplied, the sampling system enclosure heating/thermostat circuit should
be operated if the climatic temperature might fall below +5°C (+41°F).
• At time of start-up the procedures contained in the user manuals for both
analyzer and sampling system must be followed.
If the product was previously in service/operation then the following precautions should be
followed before storage:
• Upon isolation from the gas sample the entire system should be purged with a
dry nitrogen gas before powering down of the analyzer.
• All connections and ports (gas and electrical) to the analyzer or sample system
(if provided) should be capped.
• If the product is not removed from its location, the electrical grounding of the
analyzer should remain in place.
•