Ground connect mode ......................................................... 3-8
Front panel ground connect ......................................... 3-8
Remote command ground connect .............................. 3-8
Basic measurement procedure .................................................. 3-10
Output control ................................................................... 3-10
Basic measurement circuit configuration .......................... 3-10
Front panel measurement procedure ................................. 3-11
Step 1. Select measurement channel and range. ........ 3-11
Step 2. Select source channel and set source level. ... 3-11
Step 3. Turn source outputs on. ................................. 3-12
Step 4. Observe readings on the display. ................... 3-12
Step 5. Turn source output off. .................................. 3-12
Remote command measurement procedure ...................... 3-12
Basic measurement and voltage source commands ... 3-12
Measurement programming example ........................ 3-13
Using the analog outputs (Model 2502 only) ........................... 3-14
4 Photodiode Measurements
Configuring measurements ........................................................ 4-2
Measurement configuration menu ....................................... 4-2
Configuring measurements ................................................. 4-3
Optical power ...................................................................... 4-3
Front panel photodiode measurements ...................................... 4-4
Photodiode measurement circuit configuration .................. 4-4
Front panel photodiode measurement procedure ................ 4-4
Step 1. Configure measurement functions. .................. 4-4
Step 2. Set bias voltage source values. ........................ 4-5
Step 3. Turn source outputs on. ................................... 4-5
Step 4. Observe readings on the display. ..................... 4-5
Step 5. Turn source outputs off. ................................... 4-5
Remote photodiode measurements ............................................ 4-5
Photodiode measurement commands .................................. 4-5
Photodiode measurement programming example ............... 4-7
5 Measurement Concepts
Source-delay-measure cycle ....................................................... 5-2
Overview ............................................................................. 5-2
Triggering ............................................................................ 5-2
Delay phase ......................................................................... 5-3
Measurement time ............................................................... 5-3
Sweep waveforms ...................................................................... 5-4
Staircase sweeps .................................................................. 5-4
Custom sweep ..................................................................... 5-4
SDM cycle during sweeps .................................................. 5-5
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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