Epson USN 52L Damping Electrical damping of the probe, RECTIF. Setting the rectification mode

Adjustment of the USN 52R/USN 52L Operation

DAMPING Electrical damping of the probe

You can use the function DAMPING to connect various resistors in parallel to the probe in order to achieve an optimum matching of the probe’s electrical impedance to the instrument.

–Select a low value with broadband probes, or if you wish to improve the near resolution.

–Select a high value if you are using narrow-band probes, or if you need a high sound intensity.

Operation:

Set the required value in DAMPING using M.

RECTIF. Setting the rectification mode

In the RECTIF. function you select the rectification mode of the echo pulses according to the application. You have the following possibilities:

•FULL (full-wave): All half-waves above the base line are displayed

•RF (radio-frequency display): All signals are displayed in their original form.

HNote:

The RF display mode is only adjustable if the function INTENSITY (display brightness) is set to LOW and the range does not exceed 196 mm (with 5920 mm).

•NEG HALF (negative half-wave): Only negative half- waves are displayed.

•POS HALF (positive half-wave): Only positive half- waves are displayed.

Operation:

– Select the required setting in RECTIF. with M.

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-7