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 20µA 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 0.0000µA, 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.
RS232DIGITAL 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
To Next Page
Loading...
Need help?
General
