1-16 Performance Verification
Current measurement accuracy
Follow the steps below to verify that Model 2410 current measurement accuracy
is within
specified limits. The procedure involves applying accurate currents from the Model 2410 current
source and then verifying that Model 2410 current measurements are within required limits.
1. W
ith the power off, connect the digital multimeter to the Model 2410 INPUT/OUTPUT
jacks a
s shown in Figure 1-2.
2. Select the multimeter DC current function.
3. Set the Model 2410 to both source and measure current by pressing the SOURCE I and
MEAS
I keys, and make sure the source output is turned on.
4. Verify measure current accuracy for each of the currents listed in Table 1-5. For each
measurem
ent:
• Select the correct source range.
• Set the Model 2410 source output to the correct value as measured by the digi
tal
m
u
ltimet
er.
• Verify that the Model 2410 current reading is within the limits given in the table.
NOTE It ma
y no
t be possible to set the current source to the specified value. Use the closest
possible setting, and modify reading limits accordingly.
5. Repeat the procedure for negative calibrator currents with the same magnitudes as those
listed in Ta
ble 1-5.
6. Repeat the entire procedure using the rear panel INPUT/OUTPUT jacks. Be sure to
select the rear pan
el jacks with the front panel TERMINALS key.
Table 1-5
Current measurement accuracy limits
Model 2410 source
and measure
range*
Source
current**
Model 2410 current
reading limits
(1 ye
ar, 18°C–28°C)
1µA
10µA
100µA
1mA
20mA
100mA
1A
1.00000µA
10.0000µA
100.000µA
1.00000mA
20.0000mA
100.000mA
1.00000A
0.99941 to 1.00059µA
9.9966 to 10.0034µA
99.969 to 100.031µA
0.99967 to 1.00033mA
19.9918 to 20.0082mA
99.939 to 100.061mA
0.99723 to 1.00277A
** Measure range coupled to source range when simultaneously sourcing
and measuring current.
** As measured by precision digital multimeter. Use closest possible value,
a
nd mod
ify reading limits accordingly if necessary.
2410-902-01.book Page 16 Monday, November 7, 2005 2:49 PM