Hioki PW3337-01 - Page 152

5.3 Measurement specifications
146
Current Waveform Peak Value Measurement Specifications
(Ipk: Displayed as A pk on panel display)
Efficiency Measurement Specifications (η: Displayed as η1 % or η2 % on display panel)
Measurement method Measures the current waveform’s peak value (for both positive and negative polarity)
based on sampled instantaneous current values.
Range configuration
Measurement accuracy ±2.0% f.s. at DC and when 10 Hz ≤ f ≤ 1 kHz (f.s.: current peak range). Provided as ref-
erence value when 0.1 Hz ≤ f < 10 Hz and when in excess of 1 kHz.
Effective measuring range ±5% to ±100% of current peak range (up to ±100 A)
Display range ±0.3% to ±102% of current peak range (values less than ±0.3% are subject to zero-sup-
pression)
Over-range display Displays [o.r] when input exceeds ±102% of the current peak range.
Invalid data display Ipksum is displayed as [- - - - -].
Current range 200 mA 500 mA 1 A 2 A 5 A 10 A 20 A 50 A
Current peak range 1.2000 A 3.0000 A 6.0000 A 12.000 A 30.000 A 60.000 A 120.00 A 300.00 A
Measurement method Calculates the efficiency η [%] from the ratio of active power values for channels and wires.
Wiring modes and calculation
equations
Calculated based on the AC+DC rectifier active power.
Effective measuring range As per the active power effective measurement range.
Display range 0.00[%] to 200.00[%]
Over-range display Displays [o.r] when displaying [o.r] for the active power value being used as either the
numerator or denominator in the equation.
Displays [o.r] when the active power value being used as the denominator in the equation is 0.
Invalid data display Displays [- - - - -] for wiring modes for which efficiency is not measured.
PW3336, PW3336-01, PW3336-02, PW3336-03
Wiring (WIRING) CH1 CH2 Calculation formulas
1P2W×2 1P2W 1P2W
η1=100×|P2|/|P1|
η2=100×|P1|/|P2|
1P3W 1P3W -
3P3W 3P3W -
3P3W2M 3P3W2M -
PW3337, PW3337-01, PW3337-02, PW3337-03
Wiring (WIRING) CH1 CH2 CH3 Calculation formulas
1P2W×3 1P2W 1P2W 1P2W
η1=100×|P3|/|P1|
η2=100×|P1|/|P3|
1P3W&1P2W 1P3W 1P2W
η1=100×|P3|/|Psum|
η2=100×|Psum|/|P3|
3P3W&1P2W 3P3W 1P2W
3P3W2M 3P3W2M -
3V3A 3V3A -
3P3W3M 3P3W3M -
3P4W 3P4W -