Chroma 66203, User Manual

Page: 69 / 146

Operation
4-43
EFF
Figure 4-66 EFFICIENCY Setup Screen
The 66203/66204 Digital Power Meter has EFF function to calculate the efficiency of power
supply or energy converter. The EFF defines the calculation to be A/B or B/A. Please
follow the table below the assign the measurement channel to A or B based on the set wiring
mode.
Following is the procedure to set EFF function:
1. Press
SETUP to select Meas. The Meas indicator is on.
2. Use
↑ , ↓ to select EFF function in the 1
st
display window and press TRIG/ENTER to
confirm it.
3. Use ↑ , ↓ to select a/b or b/a calculation mode in the 2
nd
display window and press
TRIG/ENTER to confirm it.
4. When done, press SETUP to exit the menu.
5. Press FUNC to switch the indicator to EFF in Display 2. The indicators of all
measurement channels will be off.
Figure 4-67 Process for Setting EFFICIENCY