Hioki 3390 - Viewing Efficiency and Loss Measurement Values; Displaying Efficiency and Loss

4.7 Viewing Efficiency and Loss Measurement Values
77
4
Chapter 4 Viewing Measurement Values
This instrument uses active power and motor power values to calculate and display efficiency (η [%]) and
loss [W]. For example, inverter input-output efficiency and internal loss, and motor input-output efficient
and loss, as well as total efficiency, can be calculated by a single instrument.
4.7 Viewing Efficiency and Loss Measure-
ment Values
4.7.1 Displaying Efficiency and Loss
• Motor power (Pm) measurement requires the Model 9791 Motor Testing Option or the 9793
Motor Testing & D/A Output Option.
• Measurement values may be scattered when measuring severely fluctuating or transient
loads.
• On wiring systems with different power ranges, calculations use the data from the highest
power range.
• On wiring system with different sync sources, calculations use the most recent data at calcu-
lation time.
Press and then to select the [Efficiency] page.
Efficiency
Loss
• The display range for Efficiency (η [%]) is 0.00% to 200.00%.
• The display range for Loss [W] is 0 to
±120% of the power range.