Anritsu ML2400A Series - Front Panel Controls

4-2 ML2400A OM
FRONT PANEL CONTROLS OPERATION
Cal / Zero
Sensor
Channel
Trigger System
Figure 4-1. ML2400A Se ries Front Panel Controls
Nu meric Key pad
Pro vides the means for en ter ing
nu meric data in the ap pro pri ate
menus as re quired for sys tem
con fig u ra tion or cal i bra tion. A
flash ing cur sor in di cates when
num bers can be en tered us ing
the nu meric key pad.
Power On /Off
Switches the power me ter from STANDBY to ON, or ON to
STANDBY. Note that when ever AC power is ap plied, the power
me ter de faults to the ON state. Sub se quently, the in stru ment can
be switched be tween the ON state and the STANDBY state us -
ing this front panel Power On /Off key.
When Ex ter nal or In ter nal (bat tery) DC power is first ap plied to
the in stru ment (no AC pres ent) the power me ter de faults to the
STANDBY state. It can then be switched to the ON state us ing
the front panel Power On /Off key.
Clear Key
The clear (CLR) key per forms var i ous func tions de pend ing on when it is
pressed. For ex am ple, when ed it ing an en try in a menu, press ing the CLR key
clears the dig its. If in a menu screen, press ing the CLR key re turns to the pre vi -
ous menu level.
If the lim its FAIL in di ca tor HOLD au di ble alarm is sound ing, press ing the CLR
key stops the alarm. The FAIL in di ca tion is not af fected by the clear key, and
can only be cleared by turn ing fail hold off.
If the GPIB box is on the screen and the sys tem is not in a menu screen, and
the sys tem is in lo cal mode (menus avail able), and no GPIB op er a tions are
pend ing, then press ing the CLR key clears the GPIB box off the screen.
In CDMA mode with Peak or Crest dis played, the CLR key clears the Peak and
Crest for both dis play chan nels
Graphic LCD with Back light
The LCD dis play set tings are con fig ured in the
Sys tem menus. The back light can be turned on or
off, or time de layed, as re quired to suit am bi ent
con di tions and bat tery drain. The back light is con -
trolled through the
Sys tem menus when op er at -
ing from the in ter nal bat tery.
Soft Keys
Soft keys se lect submenus, tog gle se lec tions,
con trol cur sor po si tion, and al low data en try. A
flash ing cur sor in di cates when num bers can be
en tered us ing the nu meric key pad. Re fer to the
fol low ing sec tions of this chap ter for de tailed in -
for ma tion on us ing the soft keys.
Menu Keys
When pressed, the first level sub menus
ap pear on the dis play di rectly above the
soft key for that menu func tion. Re fer to
the fol low ing sec tions of this chapter for
de tailed in for ma tion on us ing the menu
keys.