Siemens LU01 Benutzerhandbuch

Page 56

SITRANS LU01 – INSTRUCTION MANUAL

7ML19985BE02

The value altered when an Offset Calibration is performed.

Alternatively, if the amount of Offset Correction required is known, enter the amount to be 
added to the Reading before display. 

The value adjusted based on the Sound Velocity at 20 °C (P654) vs. Temperature (P664) 

characteristics of air.

Alternatively, enter the current sound velocity (if known), or perform a Sound Velocity 
Calibration (P651). The units used are m/s if P005 = 1, 2, or 3, or ft/s if P005 = 4 or 5.

This value is used to automatically calculate Sound Velocity (P653).

After performing a Sound Velocity Calibration, check this value to verify the acoustic 
beam atmosphere is air (344.1 m/s or 1129 ft/s).

Alternatively, if the acoustic beam atmosphere sound velocity at 20°C (68 °F) is known, 
and the sound velocity vs. temperature characteristics are similar to that of air, enter the 
sound velocity. 

The units used are m/s if P005 = 1, 2, or 3, or ft/s if P005 = 4 or 5.

Range: -999 to 9999

•

P650 Offset Calibration

Range: 50.01 to 2001 m/s (164.1 to 6563 ft/s)

•

P651 Sound Velocity Calibration

•

P654 Velocity at 20°C

Range: 50.01 to 2001 m/s (164.1 to 6563 ft/s)

•

P005 Units

•

P651 Sound Velocity Calibration

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P653 Velocity