16-10
Calibration
Model 6485 Instruction Manual
11.
Set the calibrator output voltage to –2.000000V, then calculate the calibration cur-
rent from the calibrator voltage and standard resistor value: I = V/R. Adjust the
Model 6485 display to agree with the calculated current, then press ENTER to
complete calibration of the present range.
12.
Press EXIT to return to normal display.
13.
Repeat steps 3 through 12 for the 20nA through 2
µ
A ranges using
as a
guide. Be sure to make connections to the correct standard resistor and set the cali-
brator voltages to the correct values.
Table 16-5
2nA to 2
µ
A range calibration summary
Model 6485 Range
Calibrator Voltages
Standard Resistors
1
Calibration Currents
2
2nA
0V
+2.000000V
-2.000000V
1G
Ω
1G
Ω
1G
Ω
0nA
+2nA
-2nA
20nA
0V
+2.000000V
-2.000000V
100M
Ω
100M
Ω
100M
Ω
0nA
+20nA
-20nA
200nA
0V
+20.00000V
-20.00000V
100M
Ω
100M
Ω
100M
Ω
0nA
+200nA
-200nA
2
µ
A
0V
+200.0000V
-200.0000V
100M
Ω
100M
Ω
100M
Ω
0
µ
A
+2µ
A
-2
µ
A
1
Nominal resistance values.
2
Nominal currents. Calculate actual currents from calibrator voltage and actual standard resistor value: I = V/R. Calibrate zero,
positive full-scale, and negative full-scale for each range.
Содержание 6485
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Страница 44: ...1 20 Getting Started Model 6485 Picoammeter Instruction Manual ...
Страница 66: ...3 6 Measurements Model 6485 Picoammeter Instruction Manual ...
Страница 138: ...9 20 Remote Operation Model 6485 Picoammeter Instruction Manual ...
Страница 159: ...11 CommonCommands ...
Страница 164: ...11 6 Common Commands Model 6485 Picoammeter Instruction Manual ...
Страница 165: ...12 SCPISignalOriented MeasurementCommands ...
Страница 190: ...14 12 SCPI Reference Tables Model 6485 Picoammeter Instruction Manual ...
Страница 214: ...16 14 Calibration Model 6485 Instruction Manual ...
Страница 219: ...A Specifications ...
Страница 221: ...B StatusandErrorMessages ...
Страница 227: ...C GeneralMeasurement Considerations ...
Страница 233: ...D DDCEmulationCommands ...
Страница 247: ...E ExamplePrograms ...
Страница 250: ...E 4 Example Programs Model 6485 Picoammeter Instruction Manual ...
Страница 251: ...F IEEE 488BusOverview ...
Страница 266: ...F 16 IEEE 488 Bus Overview Model 6485 Picoammeter Instruction Manual ...
Страница 267: ...G IEEE 488andSCPI ConformanceInformation ...
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