5520A
Operators Manual
4-30
13. The Control Display now shows your entries. For example, 123.456 mV and
234.567 mA at 1.1234 kHz (below).
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14. Press E. The calibrator clears your entry from the Control Display and copies
it into the Output Display (below is typical).
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15. Press O to activate the calibrator output. When changing power output levels,
you must reenter both voltage and current (in either order).
(Enter voltage or current and then a watts entry value using b A. The remaining
volts or current value is calculated and displayed.)
Three softkey labels appear on the Control Display: WAVE MENUS, I OUT (AUX or
20A terminals), and LCOMP (off or on). The Control Display also shows the real power
output for sine waves. Power out is computed as Power = Cosine Φ (Volts x Current)
where Φ is the phase difference between the volts and current waveforms. Cosine Φ is
also known as the Power Factor (PF).
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