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A5E33329501
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Page 247
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Transducer Ringing
If the transducer is mounted too tightly, or if it is mounted so that its side touches
something (such as a vessel wall, or standpipe), its resonance characteristics change
and this can cause problems. Hand tighten only. PTFE tape is not recommended as it
reduces friction resulting in a tighter connection that can lead to ringing.
Normal Ring Down
Poor Ring Down
Ring down times that extend past the near range area can be interpreted by the SITRANS
LUT400 as the material level and are characterized by a steady high level being reported.
Echo Profile Display
To assist in troubleshooting echo profiles, pan and zoom options are available. See
“Requesting an Echo Profile” on page 57.
Trend Display
A trend display is available with pan and zoom options. See “Trends” on page 118.
ring down
time of correct echo
TVT curve
echo profile
ring down
time of correct echo
TVT curve
echo profile
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Страница 12: ...Controllori ad ultrasuoni Manuale d istruzioni 08 2012 SITRANS LUT400 HART SITRANS ...
Страница 25: ...Pagina 6 SITRANS LUT400 HART MANUALE D ISTRUZIONI 7ML19985MV51 mmmmm Note sulla sicurezza Note ...
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Страница 265: ...Pagina 246 SITRANS LUT400 HART MANUALE D ISTRUZIONI 7ML19985MV51 mmmmm Guida alla soluzione dei problemi Note ...
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Страница 289: ...Pagina 270 SITRANS LUT400 HART MANUALE D ISTRUZIONI 7ML19985MV51 mmmmm App B Certificati e assistenza Note ...
Страница 303: ...Note Notes fm Page 2 Thursday October 11 2001 8 48 AM ...
Страница 304: ...IQ300IX fm Page 5 Tuesday October 2 2001 1 43 PM ...
Страница 306: ...Operating Instructions SITRANS LUT400 HART 12 2014 Edition Ultrasonic Controllers ...
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