Fluke 374 FC - Performance Tests

374 FC/375 FC/376 FC and 902 FC
Calibration Manual
8
Performance Tests
Performance tests make sure that the Product operates within the published specifications. Do the performance tests
periodically and after service or repair. If the Product fails any part of the verification test, repair, and/or calibration
adjustments are required. See Calibration Adjustment.
In this section the Product is called the UUT (unit under test). Use these verification performance tests to make sure
the values indicated on the UUT correspond, as closely as possible, with the actual measurement values.
For each test:
1. Set the UUT to the appropriate function.
2. Connect the UUT to the Calibrator.
3. Set the Calibrator output.
4. Compare the results to Table 2. (Where X = not applicable.)
The test passes if the UUT reads between the upper and lower limit.
Table 2. Performance Tests
Function Calibrator Output 374 FC 375 FC 376 FC 902 FC
Meter Reading Limit
Lower Limit Upper limit

VAC
20 V, 20 Hz
√ √ √
X 19.2 20.8
10 V, 50 Hz
√ √ √ √
9.4 10.7
500 V, 50 Hz
√ √ √ √
492.0 508.0
1000 V, 5 0 Hz
√ √ √ X
980 1020
10 V, 400 Hz
√ √ √ √
9.4 10.7
500 V, 400 Hz
√ √ √ √
492.0 508.0

VDC
-1000
√ √ √
X -1015 -985
-10
√ √ √ √
-10.6 -9.4
10
√ √ √ √
9.4 10.6
500
√ √ √ √
494.5 505.5
1000
√ √ √
X 985 1015

mVDC
50 mV X
√ √
X 49.0 mV 51.0 mV
500 mV X
√ √
X 494.5 mV 505.5 mV
-500 mV X
√ √
X -505.5 mV -494.5 mV

Ohms
0 Ω
√ √ √ √
-0.5 Ω 0.5 Ω
10 Ω
√ √ √ √
9.4 Ω 10.6 Ω
300 Ω
√ √ √ √
296.5 Ω 303.5 Ω
3000 Ω
√ √ √ √
2965 Ω 3035 Ω
30 kΩ X
√ √ √
29.65 kΩ 30.35 kΩ
R

Capacitance
5 μF
√ √ √ √
4.6 μF 5.5 μF
90 μF
√ √ √ √
88.7 μF 91.3 μF
500 μF
√ √ √ √
491 mF 509 μF

AAC
with 50 turns coil
2 A, 50 Hz
√ √ √ √
97.5 102.5
12 A, 50 Hz
√ √ √ √
587.5 612.5
19.5 A, 50 Hz X X
√
X 955 995