Face Dipstick 2200 Series, Руководство оператора

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Chapter 7 MAINTENANCE
7-8
HOW TO DETERMINE THE CHARGE IN THE HANDLE BATTERY
It is very important to keep the Dipstick
®
Handle Battery fully charged and to always use the
Handle Battery to power the 2277 Tablet. Otherwise, you'll be using the Tablet’s rechargeable
battery every day, and you run the risk of losing power to the 2277 Tablet while collecting data.
If you charge the Handle Battery properly, it will give you many hours of service. If you charge
the Handle Battery every night before using it the next day, you will never run out of battery
power. Do NOT risk having the 2277 Tablet computer shut down during data collection because
it has no power.
You can check the status of the Handle Battery just by looking at the LED Voltmeter, and by
looking at the Tablet computer’s Power Indicator. If the Tablet’s Power Indicator is red, it is
recharging from the Handle Battery and the Tablet thinks the Handle Battery is an AC adapter.
With a fully charged Handle Battery and a fully charged Tablet battery, and with the screen
backlighting at 100%, you can expect to get more than 8 hours of operation. If you use a lower
backlighting level, you can double the length of time. If you will only be measuring for a few
hours, you can use max brightness. But in most cases, you don’t really need max brightness.
Use your head and change the backlighting level to whatever level you need.
The Tablet computer alone, without Handle Battery, will give from 3 to 6 hours of operation.
That's OK if you only need to collect a small amount of data, but you'll be much safer if you use
the Handle Battery. You don’t want to run out of power for your Tablet computer.
IF THE HANDLE BATTERY EVER FAILS
The special Handle Battery Pack provides power for the 2277 Tablet computer. The Handle Battery
Pack contains special batteries that are not readily available and is not user-serviceable. If anything
goes wrong with the Handle Battery, E-mail or call us.
BACKUP BATTERY:
Unlike the HP720 computer, the 2277 Tablet computer does not need a backup battery, so you
don’t need to worry about this. The settings on the 2277 Tablet are saved on non-volatile Flash
memory inside the Tablet.
Handle Battery Voltage
14.5V Fully Charged
12V Partial Charge, sufficient to power the Tablet
9V Still useful in powering the Tablet
6V Low Battery
4V Too low to be useful