Fluke 74X Series, Руководство по калибровке

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74X Series
Calibration Manual
18
DC Volts Source
Proceed as follows to verify the DC-Volts Source function:
1. Connect the UUT to the HP3458A as shown in Figure 6.
2. Set the 3458A to measure dc-volts.
3. Set the UUT to the DC-Volts Source function at -10 mV.
4. Observe that the reading on the 3458A is within the range shown under the
appropriate column in Table 8.
5. Continue through the test points, verifying compliance to specifications.
6. When you are finished, press the
c
button on the UUT twice to set the Source
function to off. This saves battery life.
Ω
SENSE INPUT
HI
LO
GUARD
HI
LO
HP3458A
TC
mA mA V V
RTD
RTD
SOURCE 300V
MAX
30V
MAX
30V
MAX
30V
MAX
MEAS
CAT
FLUKE 74X
gb07f.eps
Figure 6. DC Volts Source Verification Connections
Table 8. DC Volts Source Verification Points
UUT
Range
UUT
Output
Minimum
1Year
Maximum
1Year
Minimum
2Year
Maximum
2Year
110 mV -10 mV -10.0065 -9.9935 -10.0070 -9.9930
110 mV 100 mV 99.9845 100.0155 99.9795 100.0205
1.1 V 0.12 V 0.119933 0.120067 0.119927 0.120073
1.1 V 1 V 0.999845 1.000155 0.999795 1.000205
15 V 1.2 V 1.19913 1.20087 1.19907 1.20093
15 V 14 V 13.99785 14.00215 13.99715 14.00285