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Model 6485 Instruction Manual
Calibration
16-9
Figure 16-1
Connections for 20
µ
A to 20mA range calibration
2nA-2
µ
A range calibration
1.
Connect the voltage calibrator and the Model 5156 Electrometer Calibration Stan-
dard to the Model 6485 INPUT jack, as shown in
. Initially, make con-
nections to the 1G
Ω
resistance.
2.
Set the calibrator to output volts, and make sure the calibrator output is turned on.
3.
Select the Model 6485 2nA range.
4.
Press MENU, select CAL, then press ENTER. At the CAL: RUN prompt, press
ENTER again. The unit will prompt for the zero calibration point:
2NA ZERO
5.
Set the calibrator voltage to 0V then press ENTER.
6.
The instrument will prompt for the positive full-scale calibration point:
+2NA CAL
7.
Press ENTER. The instrument will prompt for the positive full-scale calibration
current:
+2.000000 NA
8.
Set the calibrator voltage to +2.000000V. Calculate the actual calibration current
from the calibrator voltage and the actual standard resistor value: I = V/R. Adjust
the Model 6485 display to agree with the calculated current, then press ENTER.
9.
The Model 6485 will prompt for the negative full-scale calibration point:
-2NA CAL
10.
Press ENTER. The instrument will prompt for the negative full-scale current:
-2.000000 NA
120
FUSE
LINE
630mA
LINE RATING
50, 60Hz
30 VA
T
(SB)
100 VAC
120 VAC
315mAT
(SB)
220 VAC
240 VAC
!
INPUT
INPUT
CO
M
M
O
N
!
42V PK
220V PK
MADE IN
U.S.A.
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
IEEE-488
CAT
TRIGGER LINK
RS-232
ANALOG OUT
INPUT
Model 6485 Picoammeter
DC Current Calibrator
BNC-to-dual
Banana Plug
Adapter (Connect
Cable Shield to
Output LO)
Low-noise Coax BNC Cable
Содержание 6485
Страница 1: ...Model 6485Picoammeter Instruction Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E ...
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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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