S
ETUP
640m Installation Safety Instructions
14
640
M
I
NSTALLATION
G
UIDE
Electrical
Considerations
•
Avoid using this product during electrical storms.
•
Avoid locations near electrical appliances or other devices that cause
excessive voltage fluctuations or emit electrical noise (for example, air
conditioners, electric motors, neon signs, high-frequency or magnetic security
devices, or computer equipment).
•
Disconnect the device from its POS terminal before cleaning.
Contactless
Considerations
Avoid having metallic objects in the proximity of a contactless antenna. If you need
to mount the terminal to vertical or inclined surfaces, use a flat, non-metallic
mounting plate.
CAUTION
Never
i
mmerse the device in water.
CAUTION
Using an enclosed metal frame or mount may negatively affect contactless
performance.
