View source for FMB640 General description

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{{FMB640 Package contents}}

==Basic characteristics==

{{FMB640_Basic_characteristics}}


{{FMB640 Hardware features}}


{{FMB640 Interface features}}


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==Technical information about internal battery==

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== Battery tests ==
The amount of time the device will work from internal battery depends on the battery health, how often the device saves/sends information to the server, external peripherals connected to the device and the results may also differ depending on firmware used.

For general comparison purpose, and to see what results can be achieved, you can refer to the following internal test results in different modes and sending frequencies:
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<table class="nd-othertables" style="width: 100%;">
 <tr>
        <th style="width: 10%; text-align:center; vertical-align:middle; color: black">Mode:</th>
        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Min Period (data saving frequency)</th>
        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Send Period (data sending frequency)</th>
        <th style="width: 15%; text-align:center; vertical-align:middle; color: black">Starting Voltage</th>
        <th style="width: 15%; text-align:center; vertical-align:middle; color: black">Cut off Voltage</th>
        <th style="width: 20%; text-align:center; vertical-align:middle; color: black">Time achieved</th>
    </tr>
        <tr>
        <td style="vertical-align:middle">Operating</td>
        <td>  10 seconds</td>
        <td>  60 seconds</td>
        <td>10,1V</td>
        <td>8,3V</td>
        <td>471 min (7 hours 51 minutes)</td>
    </tr>
        <tr>
        <td style="vertical-align:middle">Operating</td>
        <td>60 seconds</td>
        <td>60 seconds</td>
        <td>10,2V</td>
        <td>8,3V</td>
        <td>546 min (9 hours 16 minutes)</td>
    </tr>
        <tr>
        <td style="vertical-align:middle">Deep Sleep</td>
        <td>12 hours</td>
        <td>12 hours</td>
        <td>10,0V</td>
        <td>8,2V</td>
        <td>15120 min (252 hours 0 minutes)</td>
    </tr>
        <tr>
        <td style="vertical-align:middle">Online Deep Sleep</td>
        <td>12 hours</td>
        <td>12 hours</td>
        <td>10,2V</td>
        <td>8,6V</td>
        <td>6480 min (108 hours 0 minutes)</td>
    </tr>
</tr></table>
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