Справочник Пользователя для Siemens SITRANS FUS1010 NEMA-4X/ IP 65

5.3.4

Overview Of System Performance ................................................................ 5-3

5.3.5

Accuracy ........................................................................................................... 5-3

5.3.6

Repeatability .................................................................................................... 5-3

5.3.7

Data Stability .................................................................................................... 5-3

Data Scatter ............................................................................................. 5-3
Data Drift .................................................................................................. 5-4

5.4

Flow Conditions ............................................................................................... 5-4

5.4.1

Low Flow Rates ............................................................................................... 5-4

5.4.2

Flow Data Scatter and Damping .................................................................... 5-4

System 1010 Damping and Slewing Controls ......................................... 5-4
Time Average ........................................................................................... 5-4
SmartSlew ............................................................................................... 5-5

5.4.3

Notes On Liquid Conditions .......................................................................... 5-5

5.4.4

Erroneous Liquid Parameter Specification .................................................. 5-5

5.4.5

Liquid Compatibility ........................................................................................ 5-5

5.4.6

Aeration ............................................................................................................ 5-5

5.4.7

Slurries ............................................................................................................. 5-6

5.4.8

Two-Phase Liquids .......................................................................................... 5-6

5.4.9

Viscous Liquids ............................................................................................... 5-6

5.4.10

Temperature and Pressure Ratings .............................................................. 5-6

5.5

Overview Of System 1010N Memory Resources ......................................... 5-6

5.6

Reference Tables ............................................................................................ 5-7

Sonic Velocity (m/s) For Common Liquids @ 68ºF .................................. 5-7
Sonic Velocity For Pure Water @ Various Temp. (m/s) ........................... 5-8
Vps Values (in/sec) For some Common Metals ...................................... 5-8
Recommended Sonic Coupling Compounds .......................................... 5-9
System 1010 Reynolds Compensation Factor ...................................... 5-10
Terminology Chart ................................................................................... 5-11

5.7

The Nema Dual-Channel Menu Chart ......................................................... 5-13

The Meter Type Menu ............................................................................. 5-13
The Meter Facilities Menu ...................................................................... 5-13
The Clamp-On Meter Menu .................................................................... 5-14

Section 6

6.

Operating System 1010N With Flow Tubes ................................................... 6-1

6.1

General Installation Guidelines ..................................................................... 6-1

6.1.1

Liquid Applicability And Compatibility ............................................................ 6-1

6.1.2

Selecting The Right Flow Tube ..................................................................... 6-2

Flow Tube Pressure And Temperature Ratings ....................................... 6-2
Flow Tube Material, Size & Flow Range Ratings ..................................... 6-2

6.1.3

Flow Tube Mounting Location ....................................................................... 6-2

6.1.4

Flow Data Scatter And Damping .................................................................... 6-3

6.2

Considerations For Critical Applications ...................................................... 6-3

To Obtain Technical Information ............................................................... 6-3

6.3

How To Set Up System 1010N For Flow Tube Operation ........................... 6-4

6.3.1

Overview .......................................................................................................... 6-4

6.3.2

Setup Procedure ............................................................................................. 6-4

6.4

Specifications - CPVC Flow Tube .................................................................. 6-9

6.5

Specifications - KYNAR PVDF Flow Tube .................................................... 6-9

6.6

Specifications - TEFLON PFA Flow Tube ................................................... 6-10

6.7

Specifications - 316 Stainless Steel Flow Tube ......................................... 6-10

 

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