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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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Keithley 2500 User Manual

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