13.2 Input Specifications/Output Specifications/Measurement Specifications
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Chapter 13 Specifications
(8) Instantaneous flicker value (Pinst)
Measurement method As per IEC61000-4-15
User-selectable from 230 V lamp/120 V lamp (
when Pst and Plt are selected for flicker measure-
ment)
Displayed item Instantaneous flicker value
Measurement range, resolution 99.999, 0.001
Measurement accuracy -
Event threshold N/A
(9) Frequency 200 ms (Freq)
Measurement method Reciprocal method
Calculated as the reciprocal of the accumulated whole-cycle time during approx. 200 ms period of
10, 12, or 80 U1 (reference channel) cycles.
Displayed item Frequency 200 ms
Measurement range When the measurement frequency is set to 50 Hz/60 Hz: 70.000 Hz
When the measurement frequency is set to 400 Hz : 440.00 Hz
Measurement accuracy When the measurement frequency is set to 50 Hz/60 Hz: ±0.020 Hz or less
When the measurement frequency is set to 400 Hz : ±
0.20 Hz or less (with input voltage of
4% f.s. to 110% f.s.)
Event threshold Specified as deviation from 0.1 Hz to 9.9 Hz in 0.1 Hz increments
Event IN Start of approx. 200 ms aggregation in which ±threshold was exceeded
Event OUT Start of approx. 200 ms aggregation in which reading returned to ±(threshold - 0.1 Hz)
Note: Equivalent to 0.1 Hz frequency hysteresis.
Multiple-phase system treatment None
Saved waveforms Event waveforms
(10) 10-sec frequency (Freq10s)
Measurement method Reciprocal method
Calculated as the reciprocal of the accumulated whole-cycle time during the specified 10 s period
for U1 (reference channel) as per IEC61000-4-30.
Displayed item 10-sec frequency
Measurement range When the measurement frequency is set to 50 Hz/60 Hz: 70.000 Hz
When the measurement frequency is set to 400 Hz : 440.00 Hz
Measurement accuracy When a signal with a frequency of less than 45.000 Hz is inputted with the measurement frequency
setting of 50 Hz: 0.01 Hz or less
When a signal with a frequency of 45.000 Hz or mor
e is inputted with the measurement frequency
setting of 50 Hz; With the measurement frequency setting of 50 Hz: 0.003 Hz or less
With the meausurement frequency setting of 400 Hz: 0.10 Hz or less
(with input voltage of 10 V to 1660 V)
Event threshold N/A
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