Salter Brecknell 7821 - Manual (Page 12)

Model 7821 Bench Scale User’s Manual 12
7. Press the UNITS key to perform the ROM
test…
PASS or FAIL is displayed. If the test
fails, contact your local Weigh-Tronix
distributor for service.
8. Press the ZERO key to scroll to the I/O
test…
I/O is displayed. This stands for the
Input/Output test.
9. With a loopback connector in place, press
the UNITS key to perform the I/O test…
PASS or FAIL is displayed. If the test
fails, check your connections and/or
contact your local Weigh-Tronix distribu-
tor for service.
10. Press the ZERO key…
HRESA is displayed. This stands for the
high resolution test with AZT enabled.
11. Press the UNITS key to perform this test…
The display shows the weight on the
scale at a resolution of 100,000 counts.
12. Press the UNITS key to stop the test…
HRESA is displayed.
13. Press the ZERO key…
HRESN is displayed. This stands for the
high resolution test without AZT enabled.
14. Press the UNITS key to perform this test…
The display shows the weight on the
scale at a resolution of 100,000 counts.
15. Press UNITS key to stop the test…
HRESN is displayed.