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WOW
FLUTTER METER SECTION
SPECIFICATIONS
Measuring center frequency
Within 3 kHz+ 300 Hz (JIS, NAB, CCIR)
Within 3.15 kHz+ 300 Hz (DIN)
Input level
0.5 mV~100
mV, 5 mV ~ 30 mV, two ranges
Input impedance
300 kN+ 20%, unbalanced
Wow flutter measurement range
0.003 ~ 10% (5 mV ~ 30 V range)
0.01~10%
(0.5
mV~ 100 mV range)
Display system
RMS value (JIS)
Mean value (NAB)
Peak value (CCIR, DIN)
Display accuracy
+5%
of full scale (at 4 Hz)
Frequency
Weighted
response
characteristics
In accordance with JIS, NAB, CCIR/DIN
(at 0.2 ~ 200 Hz)
Wow
characteristics
0.5~6 Hz (~3 dB+1 dB) (JIS/NAB)
0.3~6 Hz (—3 dB+1
dB) (CCIR/DIN)
Flutter
characteristics
6~ 200 Hz (— 3 dB+ 1dB)
Unweighted
characteristics
Roll off
0.5~ 200 Hz (-3 dB+ 1 dB) (JIS/NAB)
0.3 ~ 200 Hz (—3 dB+ 1dB) (CCIR/DIN)
Less than 0.5 Hz; more than
—6 dB/oct (JIS/NAB)
More than 200 Hz; more than
— 15 dB/oct (JIS/NAB)
Less than 0.3 Hz; more than
— 6 dB/oct (CCIR/DIN)
More than 200 Hz; more than — 15 dB/oct (CCIR/DIN)
Maximum
input voltage
Input monitor
FREQUENCY COUNTER SECTION
100 V (DC +AC
peak)
Level monitor lamp ON at more than 0.5 mV/5 mV of input
Measuring frequency range
Input level
0.01 ~ 55.00 kHz (gate time: 0.1 s)
0.010~9.999 kHz (gate time: 1 s)
100 mVrms ~ 30 Vrms
Input impedance
300 kQ+ 20%
(unbalanced)
Counting capacity
Decimal system, 4-digit LED memory display
Reference
Reference time
time
frequency
10.080 MHz (built-in crystal)
AC power frequency (AC line power)
Reference time
frequency
accuracy
+5x 10° (0~ 40°C) (built-in crystal)
Refer to AC power supply accuracy. (AC line power)
Gate time
1s,0.15s
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