NCR 7882 manual Ventilation Requirements, Electrical Wiring

NCR RealScan 7882 Installation and Owner Guide

Ventilation Requirements

The RealScan 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 RealScan 7882 Scanner/Scale.

Electrical Wiring

Input

Voltage

Neutral and Ground Bus

L3

Main Service

Panel

	Belt Control	Belt
N	Lighting
		Motor
	Misc. Equip.
G

Conduit

Circuit A: Checkstand

Checkstand

Frame

Note: The electrical wiring must meet all electrical codes, laws, and regulations.

Feeder wiring and insulated ground from main service panel to distribution panel to be run in metal conduit.

Isolated/Insulated	Circuit Breakers
Ground Bus	NCR circuits should be run in
	separate metal Conduits.
	Note: NCR circuits must be dedicated to
L1	NCR equipment or other logically
	connected electronic equipment
	(modems, DAA, bridges, etc.)
	Circuit B: Terminal
L2
Neutral	Circuit C: Scanner
	Receptacle should be easily
Bus	accessible and near the scanner
Distribution Panel
	Isolated Ground Receptacles

Installation Type	Input Voltage	L1, L2	Circuit Breakers
U.S., Canada, &	100Vac to 120Vac	100Vac to 120Vac	Standard single-pole; value
Japan
			determined by type of device
International	220Vac to 240Vac	220Vac to 240Vac	branch and by electrical code.
European	220Vac	220Vac	European double-pole.

20254

497-0419630 Release F 09/02 35 of 62