Справочник Пользователя для Siemens SITRANS FUS1010 NEMA-4X/ IP 65
6-1
1010NFM-3J
Section 6
6.
OPERATING SYSTEM 1010 WITH FLOW
TUBES
This extremely versatile in-line transit-time flowmeter system has proven to be a valuable tool for
servicing the following applications listed below. Be aware though that only the models 1010FTN and
1010AN meters are equipped to utilize flow tubes.
servicing the following applications listed below. Be aware though that only the models 1010FTN and
1010AN meters are equipped to utilize flow tubes.
Typical Applications include:
• Controls and Refrigerants
• Fuel Flow Measurement
• Water and Wastewater treatment chemical feed
• Chemical and Pharmaceutical Batching
• Food Processing - Juice, Wine, Beer
• Hydraulic Oil Leak Detection
• Measurement of Additives
• Automobile Assembly and Testing
Typical Industries Serviced include:
• HVAC (Hotels, Airports, Government)
• Power Generation (Nuclear, Fossil, and Hydro)
• Chemical Processing
• Food and Pharmaceutical
• Aircraft Avionics and Ground Support
• Water and Wastewater
• Aerospace
• Automobile Manufacturing
6.1
GENERAL INSTALLATION GUIDELINES
Installing Flow Tubes is a simple operation, but to assure proper installation, refer to both the instruc-
tions in this section and the Installation/Outline drawings that came with your specific Flow Tube. They
both contain important information that you will need for a successful installation.
tions in this section and the Installation/Outline drawings that came with your specific Flow Tube. They
both contain important information that you will need for a successful installation.
6.1.1 LIQUID APPLICABILITY AND COMPATIBILITY
Successful flow measurement using a transit-time Flow Tube depends on the sonic transmit signal
traveling through the liquid and arriving at the receive transducer without excessive attenuation. Most
liquids are excellent sonic conductors, regardless of their electric or optical properties. Although highly
viscous liquids exhibit a greater degree of sonic attenuation, the 992 and 1011 series Flow Tubes
operate successfully with most of these liquids.
traveling through the liquid and arriving at the receive transducer without excessive attenuation. Most
liquids are excellent sonic conductors, regardless of their electric or optical properties. Although highly
viscous liquids exhibit a greater degree of sonic attenuation, the 992 and 1011 series Flow Tubes
operate successfully with most of these liquids.
The usual cause of low liquid sonic conductivity is sonic beam scattering due to liquid non-homogene-
ity. Thus, liquids that contain gas bubbles or suspended solids are considered unsuitable applications.
However, dissolved gasses and organic solids of a moderate viscosity usually do not cause any prob-
lems.
ity. Thus, liquids that contain gas bubbles or suspended solids are considered unsuitable applications.
However, dissolved gasses and organic solids of a moderate viscosity usually do not cause any prob-
lems.
The accuracy of the liquid viscosity entry is important. It governs the degree of Reynolds Number
compensation that the flow computer applies to the final rate output. Therefore, flow data errors could
result if you enter an inaccurate viscosity value. Please note that Siemens may be able to provide the
correct liquid viscosity and data for your application. Siemens flow tubes are constructed from CPVC,
Teflon, (PFA), Kynar (PVDF) or stainless steel. Ensure that the liquid to be measured is compatible
with the flow tube material.
compensation that the flow computer applies to the final rate output. Therefore, flow data errors could
result if you enter an inaccurate viscosity value. Please note that Siemens may be able to provide the
correct liquid viscosity and data for your application. Siemens flow tubes are constructed from CPVC,
Teflon, (PFA), Kynar (PVDF) or stainless steel. Ensure that the liquid to be measured is compatible
with the flow tube material.