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18 Model 6514 Quick Results Guide

Math operations

Model 6514 math operations include mX + b and percent.

mX+b

This math operation manipulates normal display readings (X) mathematically according

to the following calculation:

Y = mX+b

where: X is the normal display reading

m and b are user-entered constants for scale factor and offset

Y is the displayed result

To conﬁgure and enable mX + b, press SHIFT and then MX+B to display the present scale

factor. Enter the desired M, B, and UNITS values at the prompts, and press ENTER. The

MATH annunciator will turn on to indicate that mX+b is enabled. Press SHIFT then

MX+B again to disable the function. The MATH annunciator will turn off.

Percent (%)

This math function determines percent deviation from a speciﬁed reference value. The

percent calculation is performed as follows:

Input – Reference

Percent = –––––––––––––––– × 100%

Reference

where: Input is the normal display reading.

Reference is the user entered constant.

Percent is the displayed result.

Table 13

Command sequence for limit test example

Command* Comments

*RST Restore GPIB defaults.

:CALC2:LIM:LOW -1 Set Limit 1 lower limit to -1.

:CALC2:LIM:UPP 1 Set Limit 1upper limit to 1.

:CALC2:LIM:STAT ON Enable Limit 1 test.

:CALC2:LIM2:LOW -0.1 Set Limit 2 lower limit to -0.1.

:CALC2:LIM2:UPP 0.1 Set Limit 2 upper limit to 0.1.

:CALC2:LIM2:STAT ON Enable Limit 2 test.

:READ? Trigger and request a reading.*

:CALC2:LIM:FAIL? Request Limit 1 test result.*

:CALC2:LIM2:FAIL? Request Limit 2 test result.*

*Model 6514 must be addressed to talk after sending :READ?, :CALC2:LIM:FAIL? and

:CALC2:LIM2:FAIL? to acquire test result.

Keithley 6514 Quick Guide

Other manuals for Keithley 6514