Table 2-3 Dc Volts Calibration Summary; Table 2-4 Ohms Calibration Summary - Keithley 2700 Service Manual

3. Perform the steps listed in
tion step:
• Set the calibrator to the indicated value, and make sure it is in OPERATE.
• Press the ENTER key to calibrate that step.
• Wait until the Model 2700 finishes each step. (The unit will display the
CALIBRATING message while calibrating.)
NOTE If your calibrator cannot output the values recommended in
right arrow keys, and the up and down range keys to set the Model 2700 display value
to match the calibrator output voltage.
Table 2-3
DC volts calibration summary
Calibration step Calibrator voltage
+10V +10.00000V
-10V -10.00000V
100V +100.0000V
Resistance calibration
Completing the 100V DC calibration step ends the DC voltage calibration procedure. The
Model 2700 will then prompt you to connect 1kΩ. Follow these steps for resistance calibration:
1. Set the calibrator output for resistance, and turn on external sense.
Use external sense (4-wire Ω) when calibrating all resistance ranges. Be sure that
NOTE
the calibrator external sense mode is turned on.
2. Perform the calibration steps summarized in
• Set the calibrator to the indicated value, and place the unit in operate. (If the cali-
brator cannot output the exact resistance value, use the Model 2700 left and right
arrow keys and the range keys to adjust the Model 2700 display to agree with the
actual calibrator resistance.)
• Press the ENTER key to calibrate each point.
• Wait for the Model 2700 to complete each step before continuing.
Table 2-4
Ohms calibration summary
Calibration step Calibrator resistance*
1kΩ 1kΩ
10kΩ 10kΩ
100kΩ 100kΩ
1MΩ 1MΩ
*Nominal resistance. Adjust Model 2700 calibration parameter to agree with actual value.
Table 2-3 to complete DC volts calibration. For each calibra-
Allowable range
+9V to +11V
-9V to -11V
+90V to +110V
Table 2-4. For each step:
Allowable range
0.9kΩ to 1.1kΩ
9kΩ to 11kΩ
90kΩ to 110kΩ
0.9MΩ to 1.1MΩ
Calibration 2-9
Table 2-3, use the left and