Field Xpert
4 Operability
Hauser
15
4.1.5
Long-term data storage
Field Xpert is like any other computer in that important data must be stored regularly to the device
memory or the SD card. Unsaved data is also retained, provided the battery is still charged. If the
device is switched off for long periods, unsaved data will be retained for:
• approx. 69 days for the Ex version
• approx. 48 days for the Non-Ex version
If the battery does become exhausted, any unsaved data will be lost. After recharging and switching
on, Windows Mobile restarts in a predetermined sequence. All data and/or programs stored on the
SD card or to the device memory remain accessible.
4.1.6
Backlight for display
The use of the backlight will shorten the operating time of the battery considerably. Therefore, it is
recommended that the backlight is set up to switch off after a short period of idleness (to switch it
back on again, press any key or tap on the display) and that the brightness is not at the to the highest
setting. You can make the necessary settings in the Start menu under
Setting => System =>
Backlight,
see Chapter 5.4.1.
4.1.7
Bluetooth transmission range
The Field Xpert is equipped with a Class 2 Bluetooth adapter, which limits the range to maximum
10 meters. The range can be reduced by interference from other nearby devices transmitting in the
2.4 Ghz ISM band. Sources of interference may include cordless telephones, wireless networking
devices and also microwave ovens. In certain circumstances, reception interference may cause a
Bluetooth connection to be terminated completely, making it necessary to reconnect to the HART
or FOUNDATION fieldbus network.
4.1.8
USB interface box
The optional USB interface box allows Field Xpert to be connected to a computer via its USB port.
Fig. 4-3: USB interface box
1
Connection to charger
3
USB interface to computer
2
USB interface to Field Xpert
4
Connection to Laptop/PC
F5
F1
F2
F3
F4
OK
Field Xpert
1
2
3
4
