Epson USN 52L, USN 52R manual MTL VEL Setting the sound velocity, Delay Setting the delay

Adjustment of the USN 52R/USN 52L Operation

HNote:

The setting is limited by the set sound velocity.

The measurement units for all settings – mm or inches

– can be selected in the second operating level.

MTL VEL Setting the sound velocity

In this function you enter the test object’s sound veloc- ity as a reference value. You have two possibilities:

Coarse: switch between the two preset values, e.g. 3353 m/s or 5918 m/s.

Fine: set a value between 1000 m/s and 9999 m/s. The name of the function appears in small letters (mtl vel)

HNote:

You can select the two values for the coarse setting in the second operating level.

Operation:

–Press M to change the displayed value. The set value is displayed in the MTL VEL function.

–Coarse/Fine change-over: Simultaneously press N and O in MTL VEL.

DELAY Setting the delay

In this function the timing of the sweep start is ad- justed.

Operation:

–Set a value between -20 µs and 999 µs (range dependent) in steps of 0.008 µs with M.

–Reset delay to 0.000 µs: simultaneously press N and Oin DELAY.

HNote:

In order to take the probe delay into account, you must calibrate the probe zero point with ZERO in the function group S-CAL.

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-5