NF FRA5022, Инструкция по эксплуатации

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7.7 Performance Testing
FRA5022
7-4
7.7.1 Frequency Accuracy Test
Connection: OUTPUT OSCILLATOR
→
Frequency counter input
Settings: After initializing the settings, press the ON AC/DC key with Frequency
100kHz and Amplitude 1Vrms/open.
Measurement: Measure the frequency with the frequency counter.
Evaluation: Correct if
±
50ppm (99.9950kHz to 100.0050kHz)
7.7.2 Oscillator AC Amplitude Accuracy Test
Connection: OUTPUT OSCILLATOR
→
AC voltmeter input
Settings: After initialization the settings, set frequency and AC amplitude Vrms/open
according to the following table.
Press the ON AC/DC key to reflect the changes in output.
Measurement: Measure the output voltage with the AC voltmeter.
Evaluation: Correct if within the bellow specification range.
AC amplitude
setting
Specification (1kHz)
±
(2% of set value +7mVrms)
Specification (100kHz)
±
(4% of set value +21mVrms)
7.07Vrms 6.9216 - 7.2184 Vrms 6.7662 - 7.3738 Vrms
3.0Vrms 2.933 - 3.067 Vrms 2.859 - 3.141 Vrms
1.5Vrms 1.463 - 1.537 Vrms 1.419 - 1.581 Vrms
0.7Vrms 0.679 - 0.721 Vrms 0.651 - 0.749 Vrms
0.3Vrms 0.287 - 0.313 Vrms 0.267 - 0.333 Vrms
0.15Vrms 0.140 - 0.160 Vrms 0.123 - 0.177 Vrms
0Vrms 0.000 - 0.007 Vrms 0.000 - 0.021 Vrms
7.7.3 Oscillator DC Bias Accuracy Test
Connection: OUTPUT OSCILLATOR
→
DC voltmeter input
Settings: After initialization the settings, set AC amplitude to 0 Vrms and DC bias
(V/open) according to the following table.
Press the ON AC/DC key to reflect the changes in output.
Measurement: Measure the voltage with the DC voltmeter.
Evaluation: Correct if within the bellow specification range.
DC bias
setting
SPECIFICATIONS
±
(0.5% of the set absolute value +30mV)
+10V +9.920V - +10.080V
+5V +4.945V - +5.055V
+1V +0.965V - +1.035V
0V
-
0.030V - +0.030V
-
1V
-
1.035V -
-
0.965V
-
5V
-
5.055V -
-
4.945V
-
10V
-
10.080V -
-
9.920V