Zephyr ION Podręcznik Użytkownika Pobierz pdf (Strona 13)

BioHarness BT User Guide

Page 13 of 25

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9700.0132 © Zephyr™ Technology 2013 2013-01-21

3. Logging Mode

The default device configuration is that it both transmits and logs data internally, and can record up to 24

hours of data. For details on how to configure logging modes in the device, refer to the OmniSense

Configuration and Download Tools document included on the OmniSense CD.

All data is time-stamped using an internal clock in the BioHarness Module. The internal clock is not used

to timestamp transmitted data.

This device clock will reset to 1/1/2000 12:00a.m. in three cases:

 The batteries of the device become discharged – the device has been previously left logging or

transmitting until automatic shutdown occurs, and then left further period until the clock itself

completely discharges the battery, though this may take a number of weeks.

 The Firmware has been upgraded

 The device has been left unused for a number of months

If any of these scenarios has happened, or there is any doubt that the device internal clock does not show

current time, then the device clock should be re-synchronized.

If the device clock is not re-synchronized, then it will log data, but the data entries will be time-stamped

sequentially from 1/1/2000 12:00:00

In addition, when the system is delivered to a customer, device clocks are likely to be synchronized to time

zone at the point of manufacture, and should be resynchronized to local time.

3.1 Device Clock Synchronization

Device clock synchronization happens automatically:

 When the device is connected to a PC and added into the system database, in the OmniSense

Live module (see the OmniSense Live User Guide). This is part of the system set up process, but

the device internal clock will not be synchronized if a configuration file is used to load devices into

the system database, as the device need not be connected to a PC.

 When the device is connected to a PC and the Log Import Utility is opened in the OmniSense

Analysis Module (see OmniSense Analysis User Guide)

Device clocks can also be synchronized manually at ant time using the BioHarness BT Configuration Tool,

installed at C:\Program Files\Zephyr\OmniSense\Tools when the OmniSense Application software is

installed.

Zephyr ION Podręcznik Użytkownika Strona 13