Front Panel Math Functions - Keithley 2500 User Manual

7-6 Relative, Math, Ratio, and Delta

Front panel math functions

Using
1. Press CONFIG then MSR1 or MSR2 to select channel 1 or channel 2 respectively.
2. Using the EDIT keys, place the cursor on the desired function, then press ENTER.
3. From normal display, press the MSR1 or MSR2 key to display the function reading.
4. To cancel the function and return to normal current measurement display, repeat steps
1 and 2, but select I in the configuration menu.
Table 7-3
Measurement function configuration menu
Configuration menu item
CONFIG MSR1
CONFIG MSR1 BUTTON
I
I/V
V/I
MX + B_UNIT
P
P→
CONFIG MSR2
CONFIG MSR2 BUTTON
I
I/V
V/I
MX + B_UNIT
P
P→
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Table 7-3 as a guide, configure measurement math functions as follows:
Models 2500 and 2502 User's Manual
Description
Configure channel 1 measurement.
Current measurement.
Conductance (I/V) measurement (Ch. 1I / Ch. 1V).
Resistance (V/I) measurement (Ch. 1V / Ch. 1I).
MX + B measurement.
Electrical power (V × I) measurement
(Ch. 1V × Ch. 1I).
Optical power [(I
measured
Configure channel 2 measurement.
Current measurement.
Conductance (I/V) measurement (Ch. 2I / Ch. 2V).
Resistance (V/I) measurement (Ch. 2V / Ch. 2I).
MX + B measurement.
Electrical power (V × I) measurement
(Ch. 2V × Ch. 2I).
Optical power [(I
measured
– I )/Responsivity].
dark current
– I )/Responsivity].
dark current