Welch Allyn CP 50 Directions For Use Manual page 10

6 Introduction
Power symbols
Connectivity symbols
Shipping, storing, and environment symbols
(LED off) No AC power is present
(LED green) AC power is present, and
battery is charging. (LED amber) AC
power is present, and battery is charging.
Alternating current
Dangerous voltage
Fuse
Protective earth
Equipotential terminal
USB
This end up
Fragile
Temperature limits
CP 50™ and CP 50 Plus™ 12-lead resting electrocardiograph
Battery absent or faulty
Battery is charged to the indicated level
Battery is charging
Battery door
Rechargeable battery
Nonionizing electromagnetic radiation
Lithium ion
Ethernet (RJ-45 )
Keep dry
Humidity limitation
Atmospheric pressure limitation