Dalian plans to arrange 205 urban infrastructure projects this year, with a total planned investment of 357.3 billion yuan, of which the real estate industry plans to invest 122.1 billion yuan. At the same time, the government will invest in building more than 28,000 sets of security housing. It is understood that the total output value of the Dalian construction industry increased from 70.46 billion yuan in 2008 to 168.2 billion yuan in 2011, and the paid local tax increased from 3.242 billion yuan to 5.513 billion yuan, a year-on-year increase of 35.39%, accounting for 10.88% of the city's total land tax, was Liaoning The provincial government conferred the title of 'Strong City in Construction Industry'.
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a) Sensor stays away from mechanical vibration source, for example, pump. Use flexible pipe to connect meter with pipeline if inevitable. The housing of meter must be standalone, out of touch with any other device. There must be 3 times the size of sensor between 2 sensors if there are many flow meters on the same pipeline, to avoid resonance.
b) Do not install sensor on pipeline that easily expands with hot and contracts with cold, especially near expansion joint, which leads to a worse stability.
c) Sensor stays away from industrial electromagnetic field, such as large generator and transformer, better 5m at least. Such device influences the performance of drive coil and pickoffs. Make sure magnetic field intensity less than 400A/m.
d) Sensor shall be installed on lower pipeline, to be easily full of fluid.
e) Make sure Ex-mark meet application requirements if in hazardous area.
f) Build a sunshade if the meter is under direct solar radiation. g) Keep the meter from corrosive liquid.
Release date:2012/3/27 10:10:52