13
Front Panel (cont)
D
O
Places the Calibrator in the operate mode and
lights the indicator on the key.
E
Z
Opens and closes a connection between the
NORMAL LO terminal and earth ground.
When the indicator is lit, the connection is
closed.
F
a
Activates or deactivates an oscilloscope
calibration option if one is installed. An
indicator on the key indicates when the option
is activated.
G
B
Opens and closes an internal connection
between the internal NORMAL LO signal
ground and the internal guard shield. When
the indicator is lit, the connection is open.
H
P
Recalls the previous set of menu choices.
Each press of this key backs up one level of
the menu tree.
I
Softkeys
Softkeys are identified by labels on the Control
Display directly above each key.