To Next Page

To Previous Page

Model 2701 Service Manual Calibration 2-21

8. After the last AC current calibration step, the instrument will prompt you to enter 3Hz

at 1V RMS and 1kHz with the following prompts:

• Low-frequency cal — Set the function generator to output a 1V RMS, 3Hz sine

wave. Use the left and right arrow keys and the range keys to adjust the display to

agree with the generator amplitude you measured previously, then press ENTER.

• Frequency cal — Set the function generator to output a 1V RMS, 1kHz sine wave.

Enter 1.000000kHz at the prompt, then press ENTER.

9. Set the calibration dates, then save calibration to complete the process.

Remote manufacturing calibration

1. Install the shorted Model 7797 calibration board (see “Calibration card preparation”

earlier in this section) in scanner card Slot 1 and select the rear inputs with the INPUTS

switch. Allow three minutes for thermal equilibrium.

2. Press and hold the OPEN key while turning on the power.

3. Enable calibration by sending the :CODE command. For example, the default

command is:

:CAL:PROT:CODE 'KI002701'

4. Initiate calibration by sending the following command:

:CAL:PROT:INIT

5. Calibrate step 0 with the following command:

:CAL:PROT:DC:STEP0

6. Perform the entire remote comprehensive calibration procedure discussed earlier in this

section. (See “Comprehensive calibration” on page 2-5.)

7. Connect the function generator to the Model 2701 INPUT jacks as shown in Figure 2-5.

Select the front input jacks with the INPUTS switch.

8. Set the generator to output a 1V RMS, 3Hz sine wave, then send the following

command:

:CAL:PROT:AC:STEP14 <Cal_voltage>

Here <Cal_voltage> is the actual 3Hz generator signal amplitude you measured

previously.

9. Set the generator to output a 1V RMS, 1kHz sine wave, then send the following

command:

:CAL:PROT:AC:STEP15 1E3

10. Send the following commands to set calibration dates, save calibration, and lock out

calibration:

:CAL:PROT:DATE <year>, <month>, <day>

:CAL:PROT:NDUE <year>, <month>, <day>

:CAL:PROT:SAVE

:CAL:PROT:LOCK

Keithley 2701 Service Manual

Other manuals for Keithley 2701