Emerson 475, User Manual

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Learning the Basics
2-14
Power Status
The Power Status setting lets you specify power management options when the 475
Field Communicator is on battery power. The standby timer puts the 475 Field
Communicator in standby and the auto-off timer shuts down the 475 Field
Communicator after the specified values of inactivity. To specify values for the standby
or auto-off timer, select the time intervals from the drop-down lists. If set to short
intervals, these timers will save battery power.
The Maximize Power Savings option conserves additional battery power by letting the
475 Field Communicator enter standby or shut down when communicating with a
device. To enable Maximize Power Savings, tap the checkbox. If this option is
disabled, the 475 Field Communicator will not enter standby or shut down when
communicating with a device.
After you select the appropriate power management settings, tap OK to apply the
settings for this session only, SET DEFAULT to retain the settings upon startup, or
CANCEL to exit without changes.
Retrain The Battery
The Retrain The Battery setting lets you fully discharge the battery so it can be
charged to its full capacity. Perform this operation if you notice a significant decrease in
charge life or performance.
CAUTION
It should not be necessary to perform this operation on a regular basis. Doing so may
damage the Li-Ion battery.
Ensure the power supply/charger is not connected when this operation is performed.
During the operation, the backlight is set to its brightest setting to quickly discharge the
battery. The backlight, standby, and auto-off timers are disabled. If you tap
CANCEL ,
the battery stops discharging and the backlight, standby, and auto-off timers are
re-enabled. The backlight setting is also restored.
After the battery is fully discharged, make sure it is fully recharged before using it
without the power supply/charger. You can use the 475 Field Communicator while the
battery is recharging.
To retrain the battery:
1. Disconnect the power supply/charger, if it is connected to the 475 Field
Communicator.
2. Double-tap Retrain The Battery from the Settings menu.
3. Wait until the 475 Field Communicator shuts down. It may take up to several hours
to discharge the battery, depending on the charge remaining when the operation
began.
4. Connect the power supply/charger to the 475 Field Communicator and fully charge
the battery.
Touch Screen Alignment
The Touch Screen Alignment setting lets you calibrate the touch screen with the
display. Tap the center of the cross hairs firmly and accurately at each location on the
window. The target continues to move until the touch screen is aligned. Touch screen
alignment is retained upon start up.