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18-12
Performance Verification
Amps measurement accuracy
Follow the steps below to verify that Model 6514 amps function measurement accuracy is
within specified limits. The test involves applying accurate DC currents and then verifying that
Model 6514 current readings are within required limits.
20µA-20mA range accuracy
1.
Connect the current calibrator to Model 6514 INPUT jack, as shown in Figure 18-2. Use
the appropriate triax-to-BNC, low-noise coaxial cable, and BNC-to-dual banana plug
adapters where shown.
2.
Select Model 6514 DC amps function with the I key, and set the calibrator to output DC
current.
3.
Set Model 6514 to the 20
µ
A range using the up or down RANGE key.
4.
With zero check enabled, zero correct Model 6514, then disable zero check.
5.
Set the calibrator current to 0.0000
µ
A, and make sure the output is turned on.
6.
Enable Model 6514 REL mode. Leave REL enabled for the remainder of the test.
7.
Verify current measurement accuracy for each of the currents listed in Table 18-3. For
each test point:
•
Select the correct Model 6514 measurement range.
•
Set the calibrator current to the indicated value.
•
Verify that Model 6514 current reading is within the limits given in the table.
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
Triax-to-BNC Adapter
Model 6514 Electrometer
DC Current Calibrator
BNC-to-dual
Banana Plug
Adapter (Connect
Cable Shield to
Output LO)
Low-noise Coax BNC Cable
Figure 18-2
Connections for
20µA-20mA
range verification
Summary of Contents for 6514
Page 203: ...14 CommonCommands...
Page 207: ...15 SCPISignalOriented MeasurementCommands...
Page 235: ...18 PerformanceVerification...
Page 254: ...19 Calibration...
Page 274: ...20 RoutineMaintenance...
Page 278: ...A Specifications...
Page 282: ...B StatusandErrorMessages...
Page 288: ...C GeneralMeasurement Considerations...
Page 294: ...D DDCEmulationCommands...
Page 299: ...E ExamplePrograms...
Page 306: ...F IEEE 488BusOverview...
Page 320: ...G IEEE 488andSCPI ConformanceInformation...
Page 324: ...H CalibrationOptions...