NCR RealScan 7872 Installation/Owner Guide
08/04
497-0415291 Release F
20 of 44
Access the Calibration Switch
The Calibration Switch is located below the Top Plate.
1.
Remove the Top Plate to gain access to the Calibration Switch Cover.
2.
Remove the screw that secures the Calibration Switch Cover.
3.
Also remove the seal if one is present.
4.
Rotate the Calibration Switch Cover to gain access to the Calibration Switch.
17903
Calibrate the Scale
The scale firmware controls calibration. It waits for you to respond to the prompt before
going to the next step. When you have placed the weight on the Top Plate and pressed
the Scale Zero button, the firmware sounds a single tone and changes the prompt for the
next weight. You can end the procedure before you have completed the calibration
function by turning the unit off. However, if you do this, you must still calibrate the
scale before placing it into service
Note:
The pound and kilogram weights used for calibration are not equivalent values.
They are the actual weights the firmware needs to perform the calibration.
1.
Install the Top Plate.
2.
Apply power to the RealScan 7872.
3.
Press and hold the Scale Zero button to display the Cal and Par values. Record these
values.
4.
Raise the front edge of the Top Plate just enough to access the Calibration Switch.
Press the Calibration Switch, then lower the front of the Top Plate into position. The
display should indicate no weight on the scale:
Ready C 0.00 lb
(0.000 kg).
5.
Change the weight on the Top Plate in the sequence shown in the following chart
when directed to do so by the display or voice messages.
Display
Add Weight
Remove Weight
Ready C-2.5 kg (05 lb.)
2.50 kg (5.00 lb.)
Ready C-05 kg (15 lb.)
2.50 kg (10.00 lb.)
Ready C-10 kg (30 lb.)
5.00 kg (15.00 lb.)
Ready C-00 kg (00 lb.)
10.00 kg (30.00 lb.)
Ready 0.000 kg (0.00 lb.)
