Posiflex DT-308 - Manual (Page 11)

Part 11
USING THE TOUCH TERMINAL
APPLICATION ENVIRONMENT
It is very important to check the following operational guidelines:
Ventilation
This terminal must NOT be operated in an environment with restricted
ventilation. There must be at least 25 mm air clearance around any top or side
ventilation holes with a free flow of air around the unit at ALL times for the
installation.
Operating Environment
The equipment must not be operated or stored in extremes of both temperature
and humidity/moisture. (Operating range 5°C to 40°C and up to 80%
humidity – non condensing, max. wet bulb 26°C)
Power Supply
The operating voltage range of the power adaptor should cover the local power
supply for proper operation. The power cable, the power outlet and any power
fusing arrangements must conform to local safety regulations.
Please never do any connection / disconnection when system is still powered
on. Please always keep the external power adaptor in a free air circulation.
UPS Battery (option)
General care:
The UPS battery is consumable beyond product warranty. Please definitely
observe the alerts in beginning of this manual. If the equipment is to be
powered off for more than few days, please always disconnect the battery
from the system. Reconnect it and turn on the system to recharge the battery
for 1 ~ 2 hours every 3 months for temperature lower than 30°C. Recharge for
1 ~ 2 hours every month for temperature over 30°C. Temperature above 40°C
must be strictly avoided as it could cause termination of battery life and
unexpected result even if the battery is not in work. The UPS battery can
support basically the data preservation and smooth running of the system
during intermittent or few minutes (within 30 min. depending on loading and
battery condition) power failure if the UPS function module option is installed.
Battery replacement:
In the preloaded WEPOS OS for a DT system, there
is a built in utility Posiflex Power Switch Manager
that will indicate the UPS battery status of the
battery. When an installed UPS battery is found to be