Siemens HydroRanger 200, Инструкция по эксплуатации

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Page 210 HydroRanger 200 – INSTRUCTION MANUAL 7ML19985FC03
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P837 Auto False-Echo Suppression
Use P837 and P838 together, to set HydroRanger 200 (all models) to ignore false echoes.
Use P838 to set the Auto TVT distance first.
If HydroRanger 200 (all models) displays a full level, or if the reading fluctuates between a
false high level and a correct level, set P837 to elevate the TVT in this region and to de-
sensitize the receiver from any ‘base noise’ caused by internal transducer reflections,
nozzle echoes, or other vessel false echoes. Set P838 and then P837 (detailed instructions
follow P838).
Notes:
• This function works best when the vessel is empty or nearly empty: use it only if
there is a minimum distance of 2 meters from the transducer face to the material.
• Set P837 and P838 during start up, if possible.
• If the vessel contains an agitator, the agitator should be running.
Values
0 * Off
1
Use ’learned’ TVT. (See ’learned TVT curve’ in Display
after Auto False Echo Suppression on page 211.)
2 Learn
Display before Auto False Echo Suppression
(or when P837 = 0)
default TVT
P839
Hover Level
false
echo
true
echo
Distance (meters)
Le
ve
l (db
)