Keithley 2002, Руководство по калибровке

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Calibration
2-20
30. Press the Model 2002 ENTER key. The instrument will
display the following while calibrating:
Low-Level Cal - Step 13 of 13
31. After step 13 is completed, the instrument will display
the following message to indicate that calibration has
been completed:
CALIBRATION COMPLETE
Step 10: Enter calibration dates
1. Press ENTER. The instrument will prompt you to enter
the calibration date:
CAL DATE: 01/01/94
2. Use the cursor and range keys to set the date as desired,
then press ENTER. Press ENTER a second time to con-
firm your date selection.
3. The Model 2002 will then prompt you to enter the cali-
bration due date:
NEXT CAL 01/01/95
4. Use the cursor keys to set the date as desired, then press
ENTER. Press ENTER again to confirm your date.
Step 11: Save calibration constants
1. The Model 2002 will then display the following mes-
sage:
CALIBRATION SUCCESS
2. If you wish to save the new calibration constants, press
ENTER. If, on the other hand, you wish to restore pre-
vious calibration constants, cycle power.
Figure 2-5
Synthesizer connections
2002 MULTIMETER
Model 2002
BNC-to-Dual
Banana Plug
Adapter
50
Ω
BNC Coaxial Cable
Model 3930A or 3940 Synthesizer
Function
Output
3930A MULTIFUNCTION SYNTHESIZER
3. Press EXIT as necessary to return to normal display.
NOTE
Calibration will be locked out automati-
cally when the calibration procedure is
completed.
2.10.4 IEEE-488 bus low-level calibration
procedure
Follow the steps below to perform low-level calibration over
the IEEE-488 bus. Table 2-6 summarizes calibration com-
mands for the procedure.
Procedure
Step 1: Prepare the Model 2002 for calibration
1. Connect the Model 2002 to the IEEE-488 bus of the
computer using a shielded IEEE-488 cable such as the
Keithley Model 7007.
2. Make sure the primary address of the Model 2002 is the
same as the address specified in the program you will be
using to send commands.
3. Turn off the power if the instrument is presently turned
on.
4. Press and hold the recessed CAL switch while turning
on the power. (Holding in the CAL switch while turning
on the power enables low-level calibration.)
5. Allow the Model 2002 to warm up for at least four hours
before performing calibration.
6. Send the following command over the bus to the instru-
ment to initiate calibration:
:CAL:PROT:INIT