Model 6487 Reference Manual
Calibration
16-9
Figure 16-1
Connections for 20µA to 20mA range calibration
2nA-2
μ
A range calibration
1.
Connect the voltage calibrator and the Model 5156 Electrometer Calibration
Standard to the Model 6487 INPUT jack (
). Initially, make connections
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 6487 2nA range.
Table 16-5
20µA to 20mA range calibration summary
Model 6487 Range
Calibrator Currents*
20
μ
A
0
μ
A
+20.00000
μ
A
-20.00000
μ
A
200
μ
A
0
μ
A
+200.0000
μ
A
-200.0000
μ
A
2mA
0mA
+2.000000mA
-2.000000mA
20mA
0mA
+20.00000mA
-20.00000mA
* Calibrate zero, positive full-scale, and negative full-scale
for each range. Triax shielding cap used for zero calibra-
tion point for all ranges. See procedure.
120
LINE RATING
50, 60Hz
50 VA MAX
INPUT
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
IEEE-488
CAT
I
TRIGGER LINK
RS-232
MADE IN
U.S.A.
ANALOG OUT
DIGITAL I/O
505V
MAX
V-SOURCE OUTPUT
505V PK TO CHASSIS
LO
HI INTERLOCK
!
!
FUSE
LINE
400mAT
(SB)
100 VAC
120 VAC
200mAT
(SB)
220 VAC
240 VAC
505V PK
505V PK
505V PK
Dual banana-
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. Connec
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hiel
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T
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C
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I
N
PUT
Model 64
8
7 Picoamme
t
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DC Cu
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Calib
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Coax Cable
