![background image](http://html2.mh-extra.com/html/keithley/2182/2182_user-manual_3982763146.webp)
NOTES
1. The fail message (“0”) for a limit test indicates that the reading is outside the
specified limits.
2. With auto clear enabled, the fail message (“0”) is cleared when the instrument
goes back into the idle state. If programmed not to go back into idle, you can
manually clear the fail condition by sending the CLEar[:IMMediate] command.
With auto clear disabled, the fail condition will have to be cleared manually.
3. When not in a continuous measurement mode (waiting for a trigger), you can
change the limits and re-test the last reading. After changing the limits, send
CALCulate3:IMMediate to re-perform the limit tests on the last reading. Note that
sending IMMediate does not initiate (trigger) a reading. It simply repeats the limit
tests on the last reading.
Programming example
The following program fragment performs limit tests on a voltage input to Channel 1:
‘Configure 2182 for one-shot DCV1 measurements:
CALL SEND(7, “*rst”,status%)
‘Put 2182 in a one-shot mode.
‘ Configure limit tests:
CALL SEND(7,“:calc3:lim:upp 0.1”,status%)
‘Set HI1 limit to 0.1.
CALL SEND(7,“:calc3:lim:low -0.1”,status%)
‘Set LO1 limit to -0.1.
CALL SEND(7,“:calc3:lim2:upp 1”,status%)
‘Set HI2 limit to 1.
CALL SEND(7,“:calc3:lim2:low -1”,status%)
‘Set LO2 limit to -1.
CALL SEND(7,“:calc3:lim:stat on”,status%)
‘Enable Limit 1 test.
CALL SEND(7,“:calc3:lim2:stat on”,status%)
‘Enable Limit 2 test.
‘Trigger one reading and display it:
CALL SEND(7,“:read?”,status%)
‘Trigger and request a
‘reading.
reading$ = SPACE$(80)
CALL ENTER(reading$, length%, 7,status%)
‘Address 2182 to talk.
PRINT reading$
‘Display reading on CRT.
‘Check result of Limit 1 test:
CALL SEND(7,“:calc3:lim:fail?”,status%)
‘Request result of
‘Limit 1 test.
reading$ = SPACE$(80)
CALL ENTER(reading$, length%, 7, status%)
‘Address 2182 to talk.
PRINT reading$
‘Display result of
‘Limit 1 test.
‘Check result of Limit 2 test:
CALL SEND (7, “:calc3:lim2:fail?”, status%)
‘Request result of
‘Limit 2 test.
reading$ = SPACE$(80)
CALL ENTER(reading$, length%, 7,status%)
‘Address 2182 to talk.
PRINT reading$
‘Display result of
‘Limit 2 test.
8-6
Limits
Summary of Contents for 2182
Page 1: ...www tek com keithley Model 2182 2182A Nanovoltmeter User s Manual 2182A 900 01 Rev B May 2017...
Page 18: ......
Page 22: ......
Page 23: ...1 Getting Started Getting Started...
Page 41: ...2 VoltageandTemperature Measurements Voltageand Temperature Measurements...
Page 68: ...2 28 Voltage and Temperature Measurements...
Page 69: ...3 Range Digits Rate andFilter Range Digits Rate andFilter...
Page 82: ...3 14 Range Digits Rate and Filter...
Page 83: ...4 Relative mX b and Percent Relative mX b andPercent...
Page 91: ...5 RatioandDelta Ratioand Delta...
Page 117: ...6 Buffer Buffer...
Page 123: ...7 Triggering Triggering...
Page 140: ...7 18 Triggering...
Page 141: ...8 Limits Limits...
Page 149: ...9 SteppingandScanning Steppingand Scanning...
Page 168: ...9 20 Stepping and Scanning...
Page 169: ...10 AnalogOutput Analog Output...
Page 175: ...11 RemoteOperation Remote Operation...
Page 205: ...12 CommonCommands Common Commands...
Page 221: ...13 SCPISignalOriented Measurement Commands SCPISignalOri entedMeasure ment Commands...
Page 225: ...14 SCPIReferenceTables SCPIRefer enceTables...
Page 239: ...15 AdditionalSCPI Commands Additional SCPICom mands...
Page 260: ...15 22 Additional SCPI Commands...
Page 261: ...A Specifications Specifications...
Page 263: ...B Statusand ErrorMessages StatusandError Messages...
Page 268: ...B 6 Status and Error Messages...
Page 269: ...C Measurement Considerations Measurement Consider ations...
Page 278: ...C 10 Measurement Considerations...
Page 279: ...D Model182Emulation Commands Model182 EmulationCom mands...
Page 284: ...D 6 Model 182 Emulation Commands...
Page 285: ...E Example Programs ExamplePro grams...
Page 293: ...F IEEE 488 BusOverview IEEE 488Bus Overview...
Page 307: ...G IEEE 488andSCPI ConformanceInformation IEEE 488and SCPIConform anceInforma tion...
Page 310: ...G 4 IEEE 488 and SCPI Conformance Information...
Page 311: ...H Measurement Queries Measurement Queries...
Page 316: ...H 6 Measurement Queries...
Page 317: ...I Delta PulseDelta and DifferentialConductance Delta Pulse Deltaand Dif ferentialCon ductance...