Epson USN 52R Operating Manual page 54

Adjustment of the USN 52R/USN 52L
REJECT Suppression of spurious echoes
With the REJECT function you are able to suppress
unwanted signals, e.g. material noise.
The setting, given in percent, indicates the height that
echoes have to reach in order to be displayed in the
first place.
Operation:
In REJECT set the required percentage value with M.
Attention:
Be careful with this function because flaw echoes can
also be suppressed.
Krautkramer USN 52R/USN 52L
REP-RATE
The number of the ultrasonic signals emitted per sec-
ond is varied using this function. This enables selective
suppression of spurious or interference echoes and
especially phantom echoes which may occur when
testing larger test objects. The function enables two
settings:
• HIGH: Maximum pulse repetition rate
(113 to 905 Hz, depending on the range setting);
default setting.
• LOW: Reduced pulse repetition rate
(56 to 452 Hz, depending on the range setting);
for testing larger test objects or in case any
statistical noise signals occur.
Operation:
In REP-RATE set the required percentage value with
M.
Issue 05, 02/00
Repetition rate
Operation
5-9