FD TMS, Инструкция по установке и эксплуатации

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6
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Install
A stable flow field is the premise of the accurate measurement of the thermal instrument. Therfore,
please note following points when installing the instrument.
6.1 Installation direction
●Horizontal installation
The process pressure must not exceed 2MPa when installing
●Vertical installation
The process pressure must not exceed 2MPa when installing
6.2 Pipe requirements
If the Interference sources (i.e. bends, reduce, valves, T tubes, ect.) exist on the instrument intake
pipe, measures must be taken to minimize their impacts on measurement performance
The following diagrams describe the recommended minimum straightway lengths of some types of
pipe.
The straightway length should be as long as possible while the room is sufficient. Without the
consideration of other factors, the recommended minimum straightway lengths are:
front straightway length: 20×DN
rare straightway length: 5×DN

The recommended straightway lengths are minimum, increased straightway lengths improve the
instrument performance.

If multiple Interference sources exist in front of instrument, the recommended straightway lengths
are absolute.