NCI 7800, User Manual, Page: 15 / 40

Model 7800 Family Weight Classifiers User’s Manual
15
Diagnostics Mode
The Diagnostic (DIAG) Mode menu allows
testing of specific areas of the scale’s function
and viewing of current configuration settings.
Areas to test the scale’s function are:
DISPLAY (DISP) – Shows the version and
revision of the software, followed by a display
segment test.
RAM (RA) – Performs a non-destructive test of
RAM in the processor. Displays PASS or FAIL .
ROM (RO) – Performs a checksum of all loca-
tions of ROM in the processor. Displays PASS or
FAIL .
INPUT/OUTPUT (I/O) – Data is output by the
scale and through the use of a loopback connec-
tor. The data is immediately read back into the
receive channel and verified against what was
sent.
PASS or FAIL is displayed. Requires a
jumper (short) between transmit and receive data
lines.
DIVISION TEST, w/AZT (DIV-A) – Weight data
is normalized to 100,000 counts of displayed
resolution. AZT is enabled.
DIVISION TEST, w/o AZT (DIV-N) – Weight data
is normalized to 100,000 counts of displayed
resolution. AZT is disabled.
Areas to view current configuration settings are:
Filter, Protocol, Baud, Capacity, Type, Units,
Prtout and Gravity Setting.
Diagnotic (DIAG) Mode
Tip: Quickly and easily
gain access to the
Diagnostic mode
directly from the front
panel without opening
the scale or setting
switches as follows:
Press and hold the
TEST key. The display
will flash 78-- , the
program version, and
then “_ _ _ _.” Now
release the
TEST key.
To exit the Diagnostic
mode press the
ZERO
key until DONE is
displayed, then press
the
TEST key to return
to normal weighing
mode.
IMPORTANT: Internal
rocker switches will be
ignored until you exit
this special mode or
power reset the scale.