User manual

WFM 90 & WFM 91 User Manual
2–1
Operation Basics: Functional Overview
This section describes the WFM 90 and WFM 91 controls and
connectors. Descriptions of special operating modes begin on page
2–6. A tutorial which guides you through a procedure exercising the
different functions of the instrument begins on page 2–11. Menu
operation is detailed in Using the Menus, starting on page 3–1.
Keypad Controls
The keypad (front panel) is illustrated in Figure 2–1.
Power Switch
ON. The
ON button toggles the instrument power on and off. The
current instrument keypad and menu selections are saved when the
instrument is turned off using this button. The instrument configura-
tion is not saved if the power source is removed before the
instrument is turned off with this button.
Display Mode Selection
WFM. Pressing the
WFM button enters the Waveform display mode.
VECT. Pressing the
VECT button enters the Vector display mode.
AUDIO. Pressing the
AUDIO button enters the Audio display mode.
PIX. Pressing the
PIX button enters the Picture display mode.
WIP. Pressing the
WIP button enters the Waveform-in-Picture
display mode. The previously selected display mode, other than
Picture, is shown in a 1/4-screen-sized window that overlays the
Picture display.