Volts Calibration; Figure 19-1 Connections For Volts Calibration - Keithley 6514 Instruction Manual

19-8 Calibration
3.
4.
Input bias current calibration
1.
2.
3.
4.

Volts calibration

1.
Figure 19-1
Connections for
volts calibration
Input
INPUT 250V PK
INPUT
OFF ON
V, GUARD
(PROGRAMMABLE)
2.
3.
4.
5.
6.
7.
Connect the triax short (triax cable with red and black alligator clips connected together)
to the rear panel INPUT jack.
Press ENTER to complete offset voltage calibration.
From the calibration menu, use the down RANGE key to display the following:
CAL: IOFFSET
Press ENTER. The instrument will prompt for an open input:
INPUT CAP
Connect the triax shielding cap to the rear panel INPUT jack.
Press ENTER to complete input bias current calibration.
Connect the voltage calibrator to Model 6514 INPUT jack, as shown in Figure 19-1. Be
sure to use the low-noise coaxial cable and appropriate adapters as shown.
Low-noise Coax BNC Cable
Triax-to-BNC Adapter
MADE IN
!
U.S.A.
IEEE-488
PREAMP 2V COMMON CHASSIS (CHANGE IEEE
WITH FRONT PANEL MENU)
250V PK OUTPUT
DIGITAL I/O TRIGGER LINK RS232
LINE RATING
50, 60Hz
PREAMP !
60 VA MAX
PREAMP
OUT
10K FUSE LINE
2V
GUARD 630mA T 100 VAC
OUTPUT
(FOLLOWS
(SB) 120 VAC
INPUT)
COM
315mAT 220 VAC
(INTERNAL) 240 VAC
(SB)
Model 6514 Electrometer
Select Model 6514 volts function by pressing the V key, and set the calibrator to output
DC volts.
Select Model 6514 2V range and make sure the calibrator output is turned on.
Press SHIFT then CAL to access the calibration menu. The unit will display the
following:
CAL:RUN
Press ENTER. The unit will prompt for the zero calibration point:
2V ZERO
Connect a triax short to the INPUT jack, and then press ENTER.
The unit will prompt for the +2V cal point:
+2V CAL
Calibrator
Output
BNC-to-dual
Banana Plug
Adapter (Connect
Cable Shield to
Output LO)
DC Voltage Calibrator