
4 Operability
Field Xpert
14
Hauser
4.1.2
Charging the Field Xpert battery
Caution!
• Always connect the Field Xpert to the USB interface before you plug in the charger.
A failure to do so may cause damage to the device.
1 Charge the Field Xpert batteries
–
The batteries can be charged directly or through the USB interface, see Fig. 4-2
–
When charging for the first time through the USB interface do not connect to the computer:
Fig. 4-2: Charging using a charger or USB interface box
2 Wait until the batteries have been fully charged (indicated by a constant red Charge LED).
4.1.3
Switching on and off
The on/off button switches both the Field Xpert and the backlight on and off. The length of time
the button is pressed determines the function. The Field Xpert remembers the last backlight setting
when it is switched off.
Field Xpert
• Switch the Field Xpert on by briefly pressing the on/off button (< 3 seconds)
• Switch the Field Xpert off by briefly pressing the on/off button (< 3 seconds)
Backlight
• Switch on the Field Xpert backlight by pressing the on/off button until the display lights
• Switch off the Field Xpert backlight by pressing the on/off button until the display darkens
4.1.4
Battery life
The battery life of a Field Xpert depends greatly on how it is used.
• The Ex version (ATEX) of Field Xpert has an average battery life of 12 to 39 hours.
• The non-Ex version of Field Xpert has an average battery life of 9 to 27 hours
The actual life depends upon the type of Bluetooth, WLAN and infrared usage as well as the
intensity of data transmission and the screen brightness.
If the battery becomes completely exhausted, any unsaved data will be lost.
1
Charger
3
Charge LED
2
USB interface
F5
F1
F2
F3
F4
OK
Field Xpert
F5
F1
F2
F3
F4
OK
Field Xpert
1
1
2
3
3