Model 6485 Instruction Manual Calibration 16-11
Figure 16-2
Connections for 2nA to 2
µ
A range calibration
Entering calibration dates and saving calibration
NOTE For temporary calibration without saving new calibration constants, proceed to
“Locking out calibration”.
1. Press MENU, select CAL, then press ENTER to access the calibration menu.
2. Use either RANGE key to display the following:
CAL: SAVE
3. Press ENTER. The unit will prompt for today’s calibration date:
DATE: 11/15/01
4. Use the arrow and RANGE keys to set the date, then press ENTER. The unit will
then prompt for the calibration due date:
NDUE: 11/15/02
5. Set the calibration due date as desired then press ENTER. The unit will prompt you
as follows:
SAVE CAL?YES
6. With the YES prompt displayed press ENTER to save and lock out calibration. The
unit will display:
CAL SAVED
NOTE Calibration will also be locked out once saved.
120
FUSE LINE
630mA
LINE RATING
50, 60Hz
30 VA
T
(SB)
100 VAC
120 VAC
315mAT
(SB)
220 VAC
240 VAC
!
INPUT
INPUT
C
O
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
BNC-to-Triax
Adapter on INPUT
Triax Cable
(Supplied with
Model 5156)
Connect Calibrator to
100MΩ or 1GΩ Resistor
Link Shield and Chassis
Model 6485 Picoammeter
DC Voltage Calibrator
BNC-to-dual
Banana Plug
Adapter
100G
Ω
100M
Ω
10G
Ω
1G
Ω
1nF
100nF
OUTPUT
Connect
Cable
Shield to
Output LO
Low-noise
Coax Cable
Note:
Model 5156 Calibration Standard
!
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