26
Keysight E1412A 6 1/2 Digit Multimeter Service Guide
Verification Tests
Performance Verification
DC Gain Verification
[1] For 2-wire ohms these errors assume you are using CALC:NULL:OFFS to null the effect of test lead resistance.
See the 2-Wire Ohms Measurement Connections in Chapter 1 and the section titled "NULL (Relative) Function"
in Chapter 2 of the Keysight E1412A User’s Manual. Add an additional 200 m
of error to the specification value
in the table if you do not null the lead resistance (e.g., 24 hour error for 100 mV range would be ± 206 μV).
[2] Use shielded twisted pair PTFE insulated cables to reduce settling and noise errors.
Q = Quick performance verification test points.
Table 4-3
DC Gain Verification Tests
INPUT FROM
CALIBRATOR
FUNCTION
QUICK
VERIFICATION
Keysight
E1412A
Range
Error from nominal (volts and current) Error
from actual (4-W and 2-W ohms)
24 hour [1]
90 day [1]
1 year [1]
100 mV
DC Volt see
Figure 4-2 for
test setup
100 mV
± 6 μV
± 7.5 μV
± 8.5 μV
1 V
1 V
± 26 μV
± 37 μV
± 47 μV
10 V
Q
10 V
± 190 μV
± 250 μV
± 400 μV
-10 V
10 V
± 190 μV
± 250 μV
± 400 μV
100 V
Q
100 V
± 2.6 mV
± 4.1 mV
± 5.1 mV
300 V
300 V
± 11.4 mV
± 19.5 mV
± 22.5 mV
100
4-wire Ohms
and 2-wire
Ohms see
Figure 4-2
(4-W) and
Figure 4-3
(2-W) for test
setups
100
± 6 m
± 12 m
± 14 m
1 k
Q
1 k
± 25 m
± 90 m
± 110 m
10 k
10 k
± 250 m
± 900 m
± 1.1
100 k
[2]
100 k
± 2.5
± 9
± 11
1 M
[2]
1 M
± 30
± 90
± 110
10 M
[2]
Q
10 M
± 1.6 k
± 3.6 k
± 5.5 k
100 M
[2]
100 M
± 810 k
± 810 k
± 810 k
10 mA
DC Current see
Figure 4-4 for
test setup
10 mA
± 1.5 μA
± 7 μA
± 9 μA
100 mA
Q
100 mA
± 14 μA
± 55 μA
± 75 μA
1 A
1 A
± 1.06 mA
± 1.4 mA
± 1.6 mA
2 A
3 A
± 14.6 mA
± 15 mA
± 15 mA
Summary of Contents for E1412A
Page 1: ...Keysight E1412A 6 1 2 Digit Multimeter Service Manual 75000 Series C ...
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Page 6: ...vi ...
Page 12: ...xii Keysight E1412A 6 1 2 Digit Multimeter Service Guide ...
Page 74: ...68 Keysight E1412A 6 1 2 Digit Multimeter Service Guide Adjustments CALibration ...
Page 80: ...74 E1412A 6 1 2 Digit Multimeter Service Guide Backdating ...
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