Setra System Model 370 - Manual (Page 32)

I.6 SELF DIAGNOSTICS
The Model 370 has a built-in self diagnostic procedure. This procedure
prompts an operator to verify that the gauge is fully operational, (but does not
verify proper calibration), by checking the keyboard, the keyboard decoder, the
display, and a checksum test on internal memory.
1. Press CONV until the gauge is displaying pressure units (make sure it is
not displaying in "ft" or "meters").
2. Press the "-" key.
3. Enter "8888". This is the Diagnostic access code.
4. Press SETUP. The display will read "d-noS".
5. Press SETUP. The display should read "do CLr".
6. Press CLEAR. The display should read "do CON".
7. Press CONV. The display should read "do FP".
8. Press F(p). The display should read "do 3".
9. Press "3". The display should read "do 4".
10. Press "4". The display should read "do 8".
11. Press "8". The display should read "bUSY".
12. Wait until the display reads "PASS".
13. Press SETUP. All segments of the display should be lit.
14. Press SETUP and wait a few seconds. The gauge should perform its power-
up internal self test and return to normal display mode.
In the unlikely event that an error message appears, repeat the test procedure
to determine that the proper key was pressed for each prompt. To restart the
test procedure after an error message has been displayed, power to the gauge
must be turned off and back on. If the last diagnostics routine performed was
not completed successfully, the gauge will automatically return to the "d-noS"
prompt, and the above procedure should be executed starting at Step 5.
If a problem persists, contact a Setra Applications Engineer for assistance.
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