Keithley 2500

7-8 Relative, Math, Ratio, and Delta Models 2500 and 2502 User’s Manual
Math function programming example
Table 7-5 summarizes commands that program the following math function parameters:
• Channel 2 math function: MX + B
• Channel 2 MX + B slope (M): 10
• Channel 2 MX + B offset (B): 5
RATIO and DELTA
RATIO functions
The Model 2500 has built-in RATIO functions to calculate the following:
• MSR1/MSR2
• MSR2/MSR1
MSR1/MSR2
This function computes the ratio between the channel 1 measurement function (MSR1)
and the channel 2 measurement function (MSR2):
RATIO = MSR1/MSR2
where: MSR1 = channel 1 measurement function
MSR2 = channel 2 measurement function
Table 7-5
Math function programming example
Command Description
:CALC2:FORM MXB2
:CALC2:KMAT:MBF 5
:CALC2:KMAT:MMF 10
:CALC2:STAT ON
:OUTP2 ON
:INIT
:CALC2:DATA?
:OUTP2 OFF
Select Ch. 2 MX + B function.
Ch. 2 offset (B) = 5.
Ch. 2 slope (M) =10.
Enable Ch 2. math.
Turn on Ch. 2 output.
Trigger math reading.
Request Ch. 2 MX + B result.
Output 2 off.
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