Test Products International 460 - Manual (Page 23)

NOTE: There may be no change to the screen after the last operation. This
is normal.
4. Press SAVE again, then select the menu item RECALL, then SCREEN 1, then ENTER.
5. You should now see your saved waveforms with the label RECALLED SCREEN 1,
immediately below the waveforms.
NOTE: The next screen save using the same screen number (e.g. Screen 1), will
overwrite the previous (Screen 1) save.
6. Select the on-screen EXIT to leave the Save program, then press SCOPE to reset the
scope parameters
Using the 10:1 Probe
The TPI Scope Plus 460 is also available with selectable attenuation probes (e.g. P/N SP60B).
These are usually in the form of a probe body with a 3-position switch, 1-meter co-axial lead ter-
minating at the meter end with a BNC connector with an adapter for the 460 socket. This set-up
contains its own ground lead exiting from the probe body, and is supplied with a number of dif-
ferent probe tips.
Attenuation selection is X1, X10, and a ground reference position. Use of the 10:1 probe extends
the bandwidth to 100 MHz when used in the X10 position.
To use the 10:1 probe with the 460, press the SCOPE button, then the F1 key when the SCOPE
INPUTS / PROBES SELECT menu boxes are present on the screen.
With the 10:1 Adapter in the CH A socket, use the Up / Down keys to highlight 10:1 on the SEL A
side of the displayed Probe Selection menu box. Then select ENTER
When using the 10:1 probe on different dual oscilloscope channels, or from instrument to instru-
ment, always perform the adjustment procedure which follows.
CAUTION: Do not use the 10:1 probe for resistance measurements.
10:1 Probe Compensation Adjustment
The following adjustment procedure will ensure that the displayed waveforms will be matched to
the correct division on the display.
There are two methods to compensate the 10:1 Probe. The first and recommended way is to
460 User s Guide Advanced Functions
C4-3