NCR 7870 User Manual
5-16
Chapter 5: Calibration
Securing the Calibration Switch
Most countries require that the Calibration Switch and Scale Board be
secured before a unit can be put into operation.
secured before a unit can be put into operation.
Some states and jurisdictions permit the use of the Audit Trail in place
of the physical seals. Check with your local inspector or governmental
agency about using the Audit Trail.
of the physical seals. Check with your local inspector or governmental
agency about using the Audit Trail.
This procedure begins with the unit already disassembled with Tower
Cabinet in place and access to the Calibration Switch.
Cabinet in place and access to the Calibration Switch.
Prior Steps
Calibration Switch accessible. See Section 2: Accessing the Calibration
Switch.
Switch.
Tools
Needle-nosed Pliers
Lead/Wire Seal
Lead/Wire Seal
P/N: 603-8001097
Lead/Wire Seal Press
P/N: 603-9000157
Film/Paper Seal
Obtain locally – must meet local government
requirements
requirements
Instructions
1.
Install Scale Board Shield.
a)
Position Shield so it encloses edge of Load Cell Shield, if
present.
present.
b)
Insert tabs of Shield into slots.
c)
Place Shield into position and attach thumbscrew. Tighten
with pliers if necessary.
with pliers if necessary.
2.
Attach seal and/or wire tag to control access to Calibration Switch.