NCI 7821, User Manual

Page: 11 / 28

Model 7821 Bench Scale User’s Manual
11
Follow these steps to access the tests in the
DIAG menu.
1. From normal weighing mode, move Switch 1
to the MENU Mode or OPEN position. (See
Figure 1).
Display shows DIAG .
2. Press the UNITS key…
DISP is displayed. This stands for
display.
3. Press the UNITS key to perform the display
test described earlier…
Display test is performed and the display
shows
DISP after the test is completed.
4. Press the ZERO key…
RA is displayed. This stands for the RAM
test.
5. Press the UNITS key to perform the RAM
test…
PASS or FAIL is displayed briefly, then
DISP . If the test fails, contact your local
Weigh-Tronix distributor for service.
6. Press the ZERO key to scroll to the ROM
test…
RO is displayed. This stands for the
ROM test.
Press the ZERO key to
scroll through lists of
selections.
Press the UNITS key
to make a selection.
If you want to skip a
test, press the
ZERO
key to scroll to the
next test.
DIAG will flash every
10 seconds during the
high resolution test to
remind you that you
are doing a test and
not seeing normal
weight readings.
Step-by-Step
Instructions for
DIAG Mode