Keithley 2010 Service Manual

8. Connect the function generator to the Model 2010 INPUT jacks as shown in Figure 2-6.
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
Calibration for firmware revision A13 and lower
Measuring synthesizer signal amplitude
The 3Hz synthesizer signal amplitude must be accurately measured using the digital
multimeter listed in Table 2-13. Proceed as follows:
1. Connect the synthesizer output to the digital multimeter INPUT jacks. (See Figure 2-7
for typical connections.)
2. Turn on the synthesizer and multimeter, and allow a one-hour warm-up period before
measuring.
3. Set the synthesizer to output a 1V RMS sine wave at 3Hz; measure and record the signal
amplitude.
Front panel manufacturing calibration (firmware A13 and lower)
1. Connect the low-thermal short to the rear panel input jacks, and select the rear inputs
with the INPUTS switch. Allow three minutes for thermal equilibrium.
2. Press in and hold the OPEN key while turning on the power.
3. Press SHIFT then CAL, select RUN, then enter the appropriate calibration code (default:
002010).
4. Select ALL at the CAL:RUN prompt.
5. Press ENTER.
6. Perform the entire front panel comprehensive calibration procedure discussed earlier in
this section. (See “Comprehensive calibration” earlier in this section.)
7. Connect the synthesizer to the Model 2010 front panel INPUT jacks as shown in
Figure 2-7. Select the front input jacks with the INPUTS switch.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 synthesizer 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 synthesizer amplitude you measured previously, then press ENTER.
• Frequency cal: Set the synthesizer to output a 1V RMS, 1kHz sine wave. Enter
1.000000kHz at the prompt, then press ENTER.
8. Set the calibration dates, then save calibration to complete the process.
2-24 Calibration

Keithley 2010 Specifications

General

Frequency Range	3 Hz to 300 kHz
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	3 A
DC Current Accuracy	0.05%
AC Current Range	3 A
Resistance Accuracy	0.01%
Interface	GPIB, RS-232
Power Supply	50 Hz or 60 Hz