Keithley SourceMeter 2400, Service Manual, Page: 23 / 137

2400-902-01 (G - Feb 2006)
1-11 Model 2400 Series User’s Manual
Performance Verification
Output current accuracy
Follow the steps below to verify that Model 2400 output current accuracy is within specified
limits. The test involves setting the output current to each full-range value and measuring the
currents with a precision digital multimeter.
1. With the power off, connect the digital multimeter to the Model 2400 INPUT/OUTPUT
jacks, as shown in Figure 1-2.
2. Select the multimeter DC current measuring function.
3. Press the Model 2400 SOURCE I key to source current, and make sure the source out-
put is turned on.
2400 SourceMeter
250V
PEAK
5V
PEAK
HI
LO
OUTPUT
250V
PEAK
250V
PEAK
EDIT
TOGGLE
POWER
RANGE
INPUT/
OUTPUT
4-WIRE
SENSE
DISPLAY
ON/OFF
TERMINALS
FRONT/
REAR
AUTO
RANGE
EXIT ENTER CONFIG MENU
SWEEP
TRIG REL
LOCAL FILTER LIMIT
DIGITS SPEED
V
Ω
MEAS
I
FCTN
V I
SOURCE
2 3 0 1
6 7 8 9
4
+/-
5
STORE RECALL
EDIT
Digital Multimeter
Input LO
Amps
Model 2400
Figure 1-2
Current verification connections