NF FRA51602, Instruction Manual

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8.5 Performance test
8-7
FRA 51602
8.5.3 Oscillator AC amplitude accuracy
This instrument : Set the frequency to 1 kHz.
Measuring instrument : Set the digital multimeter to AC voltage mode (true RMS).
Connections : Connect the
OUTPUT OSC
connector of this instrument to the digital
multimeter with a coaxial cable.
Measurement method : Set the AC amplitude of this instrument to 100 mVpk, 1 Vpk, and 10
Vpk, and read the AC voltage from the multimeter.
The amplitude accuracy is calculated from the measured AC voltage with
the formula shown below.
01 . 3
(Vpk) amplitude AC Set
(Vrms) voltage AC M easured
log 20
(dB) accuracy Amplitude
10
  
Judgement
AC amplitude
setting
Measured AC
voltage
Amplitude accuracy Passing range
100 mVpk _ _ _. _ mVrms _ _._ _ dB -0.30 to +0.30 dB
1 Vpk _. _ _ _ Vrms _ _._ _ dB -0.30 to +0.30 dB
10 Vpk _ _. _ _ Vrms _ _._ _ dB -0.30 to +0.30 dB
FRA 51602
OSC CH1 CH2
Digital multimeter
BNC-BNC
coaxial cable
BNC-banana
adapter