Rectify; Dual (Pulser-Receiver Separation) - GE USM 36 Series Technical Reference And Operating Manual

Setting the receiver (function group RECEIVER)

RECTIFY

You can use the function RECTIFY to select the rectifi-
cation mode of the echo pulses according to your appli-
cation.
The following settings are possible:
● FULLWAVE
All half-waves are displayed above the base line on
the screen.
● POS HALFWAVE
Only positive half-waves are displayed above the
base line on the screen.
● NEG HALFWAVE
Only negative half-waves are displayed above the
base line on the screen.
● RF (radio frequency)
There is no rectification. Both positive and negative
wave portions are displayed with true amplitude.
– Select the function RECTIFY.
– Select the required setting.
USM 36

DUAL (pulser-receiver separation)

You can use the function DUAL to activate the pulser-
receiver separation (see Chapter 3.3 Connecting a
probe, page 3-9).
● OFF
Single-element operation; the probe connector sock-
ets are connected in parallel.
● ON
Dual mode for using dual-element probes; one probe
connector is connected to the amplifier input, the ini-
tial pulse is applied to the other probe connector.
● THROUGH
Through-transmission mode for using two separate
probes; the receiver is connected to one probe con-
nector and the pulser is connected to the other. As
the sound wave passes through the test object only
once in through-transmission mode, all range and
wall thickness measurement functions are adjusted
accordingly.
– Select the function DUAL.
– Select the required setting.
Issue 2 (12/2013)
5 Operation
5-19