Anritsu ML2430A - Manual (Page 14)

a fuse mounted inside the unit, on the main board. A
grounding terminal is provided on the rear panel to
ground the unit during operation from a DC supply.
Battery Power The ML2430A Series Power Meter can be operated
using the optional internal battery pack. During battery
operation, an icon will be displayed on measurement
screens indicating the state of charge. When the
remaining capacity reaches less than 10%, the icon
will flash, indicating that charging will soon be required.
When running from battery power, an estimate of
typical-use running time remaining can be viewed
using the
System menu (see Chapter 4, Front Panel
Operation). Note that, due to power consumption con-
siderations, GPIB and serial remote operation are not
available when the power meter is running from the
battery.
The AUTO POWER OFF feature is also available
through the
System menu, and can be used to
automatically switch the unit to standby after a speci-
fied period of inactivity to save battery power. The
timer can be set for 10 to 240 minutes, and any key
press will restart the timer. This same feature will auto-
matically switch the unit to standby when the battery is
fully discharged in order to minimize the risk of over-
discharge.
NOTE
The ML2430A Series Power Meter uses a
high-capacity Ni-MH battery (option ML2400A-
11). Over-discharge can result in a permanent
loss of battery capacity of as much as 20%. If
the unit is to be stored for an extended period
(longer than one week), remove the optional
battery pack so as to preclude over-discharge.
For optimum battery life, store the battery pack
at –20 to +50° C (–4 to +122° F) for short periods and
–20 to +35° C (–4 to +95° F) for long term storage.
The ML2430A Series Power Meter will operate from
AC or DC main power with this battery removed. This
battery is not used for the retention of nonvolatile
memory functions. Refer to Section 2-7, Battery
Charging, Removal and Replacement, for further infor-
mation.
2-2 ML2430A OM
POWER REQUIREMENTS INSTALLATION