Voltage Drop across a Diode
© National Instruments Corporation
The DMM can excite a device under test and read the resulting voltage drop
which is useful for testing diodes.
Figure 13. NI 4050 Signal Connections for Diode Measurements
N
A
T
I
O
N
A
L
I
N
S
T
R
U
M
E
N
TS
HI
V
250V
Input
Max
LO
!
HI
250V
mA /
Max
200mA
4W
Max
Sense
LO
AUX I/O
5V
Max
Figure 14. NI 4060/4070 Signal Connections for Diode Measurements
250 V
MAX.
N
A
I
N
S
NI PXI-4070
6½-Digit FlexDMM
300 V
+
MAX
CAT II
–
1 A
250 V
MAX
300 V
MAX
CAT II
AUX I/O
5V
MAX
21
NI Digital Multimeters Getting Started Guide
HI
+
–
LO
T
I
O
N
A
L
T
R
U
M
E
N
TS
HI
+
INPUT
VΩ
–
LO
AMPS
HI
SENSE
Ω 4W
LO