P652 OFFSET CORRECTION
This value is 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.
values: -999 to 9999
P653 VELOCITY
This value is 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 (ft/s if P005 = 4 or 5).
values: 50.01 to 2001 m/s (164.1 to 6563 ft/s)
P654 VELOCITY AT 20 °C
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).
values: 50.01 to 2001 m/s (164.1 to 6563 ft/s)
PARAMETERS
PL-507 123
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