Test Products International 460 - Manual (Page 15)

Chapter 3
Operation
This chapter provides a general overview of the tpi Scope Plus 460 from an operations point of
view. The keys and adapter connectors will first be identified followed by a pictorial description
of the key and screen menu functions.
Principal Connectors and keys
Figure 3-1 shows the general layout of the front panel and side connectors. Many of the func-
tions are straight forward and identified in the illustration. The numbered items in the diagram
need additional explanation and are detailed below:
1. Ch A
This key controls the display of oscilloscope Channel A. The first screen requires
the user to first identify the nature of the display, e.g., AC Volts, DC Volts,
Frequency, etc. Then, after pressing ENTER, the Channel A trace is displayed as
well as the correct alphanumerics.
2. Ch B
This key controls the display of oscilloscope Channel B. The first screen requires
the user to first identify the nature of the display, This list is different from
Channel A and includes specialized measuring scales such as
o C, o F and Psi, etc.
After selecting the scale, press ENTER , and the Channel B trace is displayed.
3. S TIME nS
This rocker switch controls the oscilloscope timebase. Pressing the left side
decreases the sweep rate in 1, 2, 5, increments down to 2-seconds per division.
Pressing the right side speeds the sweep rate in increments up to 50-nano
seconds per division. Sweep Rate is displayed above the TRIGGER label at the
base of the screen
4. mV / V
This vertically orientated rocker switch controls the vertical sensitivity for the A
Channel oscilloscope. The scale is in 1, 2, 5, increments from 50mV to 200V
per vertical division. The readout is at the extreme left of the display just above
the A MOVE label.
5 mV / V
This rocker switch is identical to Callout #4 except applicable to Channel B. The
readout is at the extreme right of the display just above the B MOVE label.
6. Cursor Mode measurement
This is the V,
T measurement button. Pressing this button changes the
460 User s Guide Operation
C3-1