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5560A/5550A/5540A
Service Manual
5560A
44. For all A dc steps, calculate the output with the formula below. Use the appropriate conversion to
convert from base units to units for the specific evaluation step.
Calculated Product Output =
45. With the entire table populated, evaluate each step for compliance to limits. If Guardbanding is to
be applied, create a table from the example in this manual, where the acceptance limits are
properly modified by your Guardbanding method.
Product
Step
Range
1
120 µA
0 µA
2
120 µA
-0.0001 µA
3
120 µA
10 µA
4
120 µA
-10 µA
5
120 µA
100 µA
6
120 µA
-100 µA
7
1.2 mA
0 mA
8
1.2 mA
-0.000001 mA Fluke 742A-1k
24
Figure 14. Amps DC with A40B-50A
A40B-50A
INPUT
Table 7. Calibration Steps for Amps DC
Product
Shunt
Output
Fluke 742A-1k
Fluke 742A-1k
Fluke 742A-1k
Fluke 742A-1k
Fluke 742A-1k
Fluke 742A-1k
Fluke 742A-1k
OUTPUT
DMM Reading on Shunt output [V]
Shunt_R [:]
Shunt_R
on Shunt
[Ω]
8588A
DMM
Reading
Calculated
Product
Output
Output
[V]
Limits
±6.0 nA
±6.0 nA
±7.0 nA
±7.0 nA
±16.0 nA
±16.0 nA
±15.0 nA
±15.0 nA
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