Keithley 6514 User Manual

19-16 Calibration
Ohms calibration
NOTE Calibration is required only for the 2k Ω , 2M Ω , and the 2G Ω ranges. However, other
ranges may also be calibrated using appropriate calibration resistances if desired.
Volts should be calibrated before ohms.
1. Connect the triax short to the INPUT jack (triax alligator cable with red and black leads
connected together).
2. Select Model 6514 ohms function by pressing the Ω key.
3. Select Model 6514 2kΩ range.
4. Press SHIFT then CAL. At the CAL:RUN prompt, press ENTER. The unit will prompt
as follows:
2KOHM ZERO
NOTE Zero calibration is performed only on the 2k
Ω range.
5. Press ENTER. The unit will prompt for the calibration resistance:
INPUT 2KOHM
6. Press ENTER. The unit will prompt for the actual resistance:
2.000000KOHM
7. Connect the resistance calibrator to the Model 6514 INPUT jack, as shown in Figure
19-5.
8. Select the 1.9kΩ calibrator resistance.
9. Adjust Model 6514 display to agree with the actual calibration resistance, then press
ENTER to complete calibration of the present range.
10. Press EXIT to return to normal display.
11. Repeat steps 3 through 10 for the 2MΩ range using the 1.9MΩ calibrator resistance. (See
Table 19-7.)
RS232
DIGITAL I/O
PREAMP
250V PK
2V
OUTPUT
COMMON CHASSIS
120
FUSE LINE
630mA
LINE RATING
50, 60Hz
60 VA MAX
T
(SB)
100 VAC
120 VAC
315mAT
(SB)
220 VAC
240 VAC
INPUT 250V PK
IEEE-488
(CHANGE IEEE
WITH FRONT PANEL MENU)
TRIGGER LINK
!
!
MADE IN
U.S.A.
V,
GUARD
(PROGRAMMABLE)
OFF
ON
GUARD
(FOLLOWS
INPUT)
(INTERNAL)
INPUT PREAMP
10K
PREAMP
OUT
2V
OUTPUT
COM
Input
Triax-to-BNC Adapter
Model 6514 Electrometer
Resistance Calibrator
BNC-to-dual
Banana Plug
Adapter (Connect
Cable Shield to
Output LO)
Calibrator
Output
Low-noise Coax BNC Cable
Figure 19-5
Connections for
ohms calibration
(2k
Ω and
2M
Ω
ranges)

Keithley 6514 Specifications

General

Brand	Keithley
Model	6514
Category	Measuring Instruments
Language	English