Proface PS4800 - 19 Panel PC" - Manual (Page 152)

Maintenance
152
During operation, surface temperatures of the heat sink may reach 70
°C (158 °F).
Cleaning Solutions
Lithium Battery
The Industrial Personal Computer contains one battery, which is needed for backing
up:
z the real-time clock (RTC)
z CMOS data for BIOS settings
NOTE: The following characteristics, features and limits only apply to this accessory
and can deviate from those specified for the entire device. For the device where this
accessory is installed, refer to the data provided specifically for the device.
Replacing the Lithium Battery
WARNING
RISK OF BURN
Do not touch the surface of the heat sink during operation.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
CAUTION
HARMFUL CLEANING SOLUTIONS
z Do not clean the unit or any component of the unit with paint thinner, organic
solvents, or strong acids.
z Use only a mild soap or detergent that will not harm the polycarbonate material
of the screen.
Failure to follow these instructions can result in injury or equipment damage.
Features Values
Capacity 950 mAh
Voltage 3 V
Self Discharge at 23
°C (73.4 °F)
< 1% per year
Storage Time Maximum 3 years at 30
°C (86 °F)
Environmental Characteristics
Storage Temperature – 20...+60
°C (– 4...140 °F)
Relative Humidity 0...95% non-condensing
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Read and understand the safety information in the Regular Cleaning and
Maintenance section (see page 151) before attempting this procedure.
Failure to follow these instructions will result in death or serious injury.