15. Press the 'TOL VALUE' softkey. Observe the display and press the TRIGGER key.
The difference (in percent) between the measurement value and the NOMINAL value
established on the Limit Table is displayed as Cp.
16. Press the `MEAS VALUE' softkey, and press the 'return' softkey twice.
17. Press the 'VALUE MONITR' softkey. The marker (▶ ), displayed at the 'STD' softkey
label, indicates the 4278A's monitor function is operating. This monitor function
automatically turns on whenever a compensation data measurement is performed.
In this example, the last compensation measurement was the working standard's
measurement, so the STD monitor is on, and the working standard's measurement
results are displayed on the Monitor Line.
18. Press the `MONITR OFF' softkey to clear the Monitor Line.
19, Press the CLEAR key to clear the Input and Message Lines.
21. Press the 'return' softkey and the NEXT key.
20. To continue with the next practice exercise, leave the 4278A's control settings as
they are now, and proceed.
2-3-5. STORING AND AUTO LOADING CONTROL SETTINGS
To store control settings on a memory card and to show the 4278A's auto loading feature,
perform the following procedure. Confirm that softkey label page 4/4 is displayed in the
lower right-hand corner of the LCD.
1. Insert a memory card into the MEMORY card slot until the card locks in place.
2. Press the 'MEMORY CARD' softkey, the 'STORE' softkey, and the ENTER key.
3. The present control settings will be stored in the memory card and the message
"Storing completed" will be displayed on the Message Line.
4. Press the 'return' softkey, then press the 'KEY LOCK' softkey.
5. Press the 'LOCK' softkey. Confirm that all the front panel keys are disabled, except
for the 'UNLOCK' softkey.
6. Press the 'UNLOCK' softkey.
7. Turn the 4278A off.
8. With the memory card inserted, turn the 4278A on. Observe the display and note
that the message "Auto load completed" is momentarily displayed on the Message
Line. The control settings you stored in the memory card are now established.
2-13
To Next Page
Loading...
