Current Measurements; Figure 3-4 Connections For Current Measurements - Keithley 2000-Scan Instruction Manual

Current measurements

Although the Model 2000-SCAN is not intended for direct current measurements, on-card
shunt resistors can be installed for channels 1 and 6 to allow for indirect current measurements.
Figure 3-4
manual for specific information on recommended shunt resistors and their installation.
Figure 3-4
Connections for current
measurements
The current through each shunt resistor can be calculated as follows:
Where: I = current being determined
Instead of manually calculating current, set up a Model 2000/2001/2002 mX + b math
calculation function. (Here, m = 1/R and b = 0.). The multimeter will then display the actual
current value. Refer to the multimeter Manuals for details on using math functions.
shows the typical configuration for current measurements. Refer to
2000-SCAN
HI Out A
LO
DMM Rear Panel
(Model 2001/2002)
A. Test Configuration
V
DMM
2000-SCAN
B. Simplified Equivalent Circuit
V = voltage measured by multimeter
R = shunt resistance value
User-installed
Shunts
CH 1
A
A
CH 6
DUTs (2)
User-installed
Shunt
A
DUT
Operation 3-19
Section 2 of this