NCR 7882, Installation And Owner'S Manual, Page: 31 / 58

7882 Scanner Installation and Owner Guide
497-0419630 Release D 04/01 31 of 58
Ventilation Requirements
The NCR 7882 Scanner/Scale is designed to operate without an exhaust fan in the
checkstand; however, there must be adequate convection air flow. The ambient
temperature inside the checkstand cannot be higher than 104° F (40° C). Also, the
ambient temperature inside the checkstand cannot be higher than 12.6° F (7° C) above
the ambient temperature outside the checkstand. For example, if the ambient
temperature outside the checkstand is 76° F (24.4° C), the ambient temperature inside
the checkstand cannot be greater than 88.6° F (31.4° C). If the checkstand contains other
heat producing equipment, you may need to use forced air to keep the temperature
within the specified range. However, air coming into or leaving the checkstand
MUST NOT
enter or exit past the 7882 Scanner/Scale.
Electrical Wiring
Feeder wiring and insulated ground from
main service panel to distribution panel
to be run in metal conduit.
The electrical wiring must meet all
electrical codes, laws, and regulations. Note:
Circuit Breakers
NCR circuits should be run in
separate metal Conduits.
Isolated/Insulated
Ground Bus
Isolated Ground Receptacles
Neutral and
Ground Bus
Neutral
Bus
Input
Voltage
Input Voltage L1, L2 Circuit Breakers
U.S., Canada, &
Japan
European
International
100Vac to 120Vac
220Vac
220Vac to 240Vac
100Vac to 120Vac
220Vac
220Vac to 240Vac
Standard single-pole; value
determined by type of device
branch and by electrical code.
European double-pole.
Circuit B: Terminal
Installation Type
NCR circuits must be dedicated to
NCR equipment or other logically
connected electronic equipment
(modems, DAA, bridges, etc.) Note:
Circuit C: Scanner/Scale
Receptacle should be easily
accessible and near the
Scanner/Scale
L2
L3
Distribution Panel
Main Service
Panel
Conduit
Checkstand
Frame
Circuit A: Checkstand
Belt
Motor
Belt Control
Lighting
Misc. Equip.
N
G
L1
R0121