Front Panel Manufacturing Calibration; Figure 2-5 Function Generator Connections For Manufacturing Calibration - Keithley 2700 Service Manual

2-20 Calibration

Front panel manufacturing calibration

1.
2.
3.
4.
5.
6.
7.
Figure 2-5
Function generator connections for manufacturing calibration
Model 2700
Model 2700 Multimeter / Data Acquisition System
RATIO CH AVG CONT OCOMP
MATH O U T P U T
Ω2 Ω4
DCV ACV ACI
SHIFT DCI
DELAY HOLD LIMITS ON/OFF TYPE MONITOR
LOCAL
EX TRIG TRIG STORE FILTER REL
RECALL
POWER
SAVE SETUP CONFIG HALT TEST LSYNC
OPEN CLOSE STEP SCAN DIGITS RATE
8.
9.
Install the shorted calibration extender board (see "Extender board 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.
Press in and hold the OPEN key while turning on the power.
Press SHIFT then TEST. then display CALIB: TEST with the up or down range key.
Press ENTER, select RUN, then enter the appropriate calibration code (default:
002700).
Select ALL at the CAL:RUN prompt.
Press ENTER to perform the first manufacturing calibration step.
Perform the entire front panel comprehensive calibration procedure discussed earlier in
this section. (See "Comprehensive calibration" earlier in this section.)
Connect the function generator to the Model 2700 front panel INPUT jacks as shown in
Figure 2-5. Select the front input jacks with the INPUTS switch.
BNC-to-Dual
Banana Plug
Adapter
Integra Series
SENSE
INPUT
Ω 4 WIRE
HI
350V 1000V
!
PEAK PEAK
LO
500V
PERIOD SENSOR
PEAK
INPUTS
FREQ TEMP
RANGE F R
CH-OFF CARD
AUTO
FRONT/REAR
3A 250V
AMPS
RANGE
GPIB RS-232
EXIT ENTER
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.
Set the calibration dates, then save calibration to complete the process.
Function Generator
50Ω
Cable
Function
Output
Note: Output voltage must be accurately measured.
(See text).