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07 | Keysight | Low Current Semiconductor Measurements Using the B2980A Series Ammeter - Technical Overview
Example 1. Monitoring LED Forward diode current
The following steps outline how to setup and measure the low current I/V characteristics of an LED.
Detailed B2985A front panel setup instructions
Step 1. Press the lower-right [View] key to show the View menus in the function keys below the screen. Next, press the [Meter View]
function key, and then press the [AMPS(I)] assist key at the right of the screen.
(1) Press the
key to show the View function key.
Note: In case of the B2981A/83A the instrument boots-up into this state and these operations are not necessary.
Step 2. Check if the Voltage Source ield is set to 0 V. If not then follow the steps shown below to set the output voltage to zero volts.
(1) If the Voltage Source value is not 0 V, then
perform the following steps.
(2) Rotate
and to move the field pointer onto
the Voltage Source value, and press the knob to
edit the voltage.
1.
Step 3. (1) Press the Voltage Source [On/Off] key to enable the voltage source to output 0 V.
Note: If using the B2981A/83A then set the external voltage source to zero volts.
(2) Press the Ammeter [On/Off] key to connect the ammeter.
(3) A single current measurement is made automatically.
(1) Voltage Source
On
(2) Ammeter On
(3) The first measurement is made automatically.
1.
2.
2.
1.
(continued)
(2) Press
key, then
(3) press
key.
2.
(3) The field pointer changes to green (EDIT mode),
and the status information will change to EDIT
(4) Set the voltage to zero volts by rotating the
and press
to fix the value.
3.
,
.
3.
Status
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