User manual

Chapter 3: Getting to Know the 8515
Monitoring the Network Connection
Psion Teklogix 8515 Vehicle-Mount Computer User Manual 29
• Aim at the bar code and press the trigger. The beam expands into a rectangle covering
the bar code to properly scan it. The scan beam and a warning indicator are visible until
a successful decode is achieved or three seconds have elapsed.
3.8 Monitoring the Network Connection
If your computer is equipped with a wireless LAN radio, it will typically associate with the
nearest access point. The radio signal quality meter in the taskbar indicates the relative
strength of the communication link. To access the radio signal icon from the keyboard:
• Tap on the radio icon in the taskbar to display the Wireless Statistics dialog box.
3.9 General Maintenance
3.9.1 Ports
Remember to always install the dust caps on unused ports.
3.9.2 Caring for the Touchscreen
The top of the touchscreen is a thin, flexible polyester plastic sheet with a conductive
coating on the inside. The polyester can be permanently damaged by harsh chemicals and is
susceptible to abrasions and scratches. Using sharp objects on the touchscreen can scratch or
cut the plastic, or crack the internal conductive coating.
If the touchscreen is used in harsh environments, consider applying a disposable screen pro-
tector. These covers reduce the clarity of the display slightly but will dramatically extend the
useful life of the touchscreen. When they become scratched and abraded, they are easily
removed and replaced.
The chemicals listed below must not come into contact with the touchscreen:
• mustard, ketchup,
• sodium hydroxide,
• concentrated caustic solutions,
• benzyl alcohol, and
• concentrated acids.
Note: Moving in and out of the radio coverage area can have varying effects on a
network session. At times, you may need to renew your connection by logging
in again.