Frequency Measurement - Fluke 74X Series Calibration Manual

Frequency Measurement

Proceed as follows to verify the Frequency Measurement function:
1. Connect the UUT as shown in Figure 5.
2. Set the UUT to the Frequency Measurement function.
3. Select the <20 Hz range for the first step. Use the ≥20 Hz range thereafter.
4. Set the 5500A to the first test point in Table 7.
5. Observe that the frequency reading on the UUT is within the range shown.
6. Continue through the test points, using the ≥20 Hz range of the UUT.
7. When you are finished, set the 5500A to [STANDBY].
V
RTD
SOURCE
30V
MAX
30V
MAX
Figure 5. Frequency Measurement Verification Connections
Frequency
UUT Range
Input
<20 Hz 10 Hz
>20 Hz 500 Hz
>20 Hz 10 kHz
>20 Hz 50 kHz
mA mA V
RTD
CAT
MEAS
300V
TC
MAX
30V
MAX
FLUKE 74X
Table 7. Frequency Measurement Verification Points
V RMS
150 mV
150 mV
700 mV
1.4 V
Performance Verification Tests
NORMAL AUX SCOPE
V, , A, -SENSE, 200V PK
RTD AUX V
MAX
HI
1000V
20V
RMS RMS
MAX
MAX
TRIG
LO
OUT
1V PK
MAX
20V PK
MAX
TC
20V PK
MAX
FLUKE 5500A CALIBRATOR
Minimum
1 & 2 Year
9.95
499.5
9.995
49.95
gb06f.eps
Maximum
1 & 2 Year
10.05
500.5
10.005
50.05
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