Fluke 5500A, Service Manual

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5500A
Service Manual
3-32
Table 3-24. Thermocouple Measuring Accuracy Test
Input Value Nominal Reading
(
°
C)
Actual Reading
(mV) (TC
connector)
Deviation % 90-Day Spec.
(mV or %)
0 V 0.00 0.003 mV
100 mV 10,000.00 0.008%
-100 mV -10,000.00 0.008%
3-39. DC Power Amplitude Accuracy (NORMAL)
The DC Power Amplitude Accuracy (NORMAL) test checks the amplitude accuracy of
the dc volts at the NORMAL terminals in the presence of DC I at the AUX terminals.
Apply a short to the AUX terminals to provide a low-impedance path for current. Table
3-25 shows the test points.
Table 3-25. DC Power Amplitude Accuracy Test (NORMAL)
Nominal Value
(NORMAL)
Nominal Value
(A)
(AUX)
Measured Value
(V)
(NORMAL)
Deviation % 90-Day Spec. (%)
20 mV 2.19 A 0.020%
20 mV 11 A 0.020%
3-40. DC Power Amplitude Accuracy (AUX)
The DC Power Amplitude Accuracy (AUX) test checks the amplitude accuracy of the dc
current output at the AUX terminals in the presence of dc voltage at the NORMAL
terminals. Use the connections shown in Figure 3-2. Table 3-26 shows the test points.
Table 3-26. DC Power Amplitude Accuracy Test (AUX)
Nominal Value
(NORMAL)
Nominal Value
(AUX)
Measured Value (A)
(AUX)
Deviation % 90-Day Spec. (%)
1000 V 100
µ
A 0.06%
1000 V 1 mA 0.015
329 V 2.19 A 0.025
1000 V 11 A 0.041