Dc Current Calibration; Connections For Dc And Ac Amps Calibration; Dc Current Calibration Summary - Keithley 2015 Service Manual

2-12 Calibration

DC current calibration

After the 1M Ω resistance point has been calibrated, the unit will prompt you for 10mA. Fol-
low these steps for DC current calibration:
1.
Figure 2-3

Connections for DC and AC amps calibration

Model 2015
REM STEP SCAN CH1 CH2 CH3 CH4 CH5 CH6 CH7
TALK
LSTN
SRQ
SHIFT
TIMER HOLD TRIG FAST MED SLOW REL FILT AUTO ERR
MATH T H D dBm dB CONT
Ω2 Ω4
SHIFT DCV ACV ACI
DCI
DELAY HOLD LIMITS ON/OFF TEST CAL
LOCAL
EX TRIG TRIG STORE FILTER REL
RECALL
POWER
SAVE SETUP CONFIG HALT GPIB RS232
SOURCE MEAS
STEP SCAN DIGITS RATE
THD
2.
NOTE
Table 2-5

DC current calibration summary

Calibration step
10mA
100mA
1A
Connect the calibrator to the AMPS and INPUT LO terminals of the Model 2015 as
shown in Figure 2-3.
SENSE
INPUT
Ω 4 WIRE
HI
CH8 CH9 CH10 MATH
REAR
4W
350V 1000V
BUFFER
STAT !
PEAK PEAK
2015 THD MULTIMETER
LO
500V
PERIOD TCOUPL
PEAK
INPUTS
FREQ
TEMP
RANGE F R
AUTO
FRONT/REAR
3A 250V
AMPS
RANGE
EXIT ENTER
Calibrate each current step summarized in Table 2-5. For each step:
• Set the calibrator to the indicated DC current, and make sure the unit is in operate.
• Make sure the Model 2015 display indicates the correct calibration current.
• Press ENTER to complete each step.
• Allow the Model 2015 to finish each step.
If you are performing DC-only calibration, proceed to Setting calibration dates.
Calibrator
current
10.00000mA
100.0000mA
1.000000A
Input
LO
Output HI
Amps
Output
Note: Be sure calibrator is set for
LO
normal current output.
Allowable range
9mA to 11mA
90mA to 110mA
0.9A to 1.1A
Current Calibrator