20
7800 Family User Instructions
RAM (RA)
– Performs a non-destructive test of RAM in the processor. Displays
PASS
or
FAIL
.
ROM (RO)
– Performs a checksum of all locations 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
connector. 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.
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
or
).
DIAG
is displayed.
2.
Press the
TEST
key …
DISP
is displayed. This stands for display.
3.
Press the
TEST
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
TEST
key to perform the RAM test …
PASS
or
FAIL
is displayed briefly; then
RA
.
If you encounter any failure in these tests, contact your local Avery Weigh-Tronix
dealer.
Press the
ZERO
key to scroll through lists of selections.
Содержание 7820-50
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