Anritsu ML2430A operation manual Power Requirements, Installation

POWER REQUIREMENTS INSTALLATION

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.

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