Testing Diodes; Connections; Range; Figure 2-11 Diode Testing - Keithley 2010 User Manual

Testing diodes

With a Model 2010, you can measure the forward voltage drop of general-purpose diodes and
the zener voltage of zener diodes. To test diodes, press SHIFT then
range, connect the diode, and take a reading from the display.
NOTE

Connections

Connect the diode leads to the INPUT HI and INPUT LO terminals on the Model 2010. The
test current flows from the INPUT HI terminal as shown in
Figure 2-11
Diode testing

Range

You can set the test current range from the front panel. The choices are 1mA, 100µA, and
10µA. The factory test current setting is 1mA. To set the test current, perform the following
steps:
1.
2.
The diode test measures voltages up to 10V for the 1mA test current, 5V for 100µA, and 10V
for the 10µA range. If a reading is more than 10V, the Model 2010 displays the "OVERFLOW"
status message.
Diode test has a non-selectable reading rate of MEDium (1 PLC).
Model 2010
REM STEP SCAN CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH CH9 CH1 MATH
TALK 8 0 REAR
LSTN
SRQ
SHIFT 4W
TIMER HOLD TRIG FAST MED SLOW REL FILT AUTO ERR BUFFER STAT
2001 MULTIMETER
Model 2010
REM STEP SCAN CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH CH9 CH1 MATH
TALK 8 0 REAR
LSTN
SRQ
SHIFT
4W
TIMER HOLD TRIG FAST MED SLOW REL FILT AUTO ERR BUFFER STAT
2001 MULTIMETER
Note: Source current flows from the
INPUT HI to INPUT LO terminals.
Press SHIFT and then
Use the L and M keys to scroll through the three test current selections.
Figure
General-Purpose
.
Basic Measurements
, set the test current
2-11.
Diode
Zener
Diode
2-37