Ametek 2003RP User And Programming Manual page 40

4.2.5 Control the Output
The output can be disabled or enabled using the OUTPUT button as follows:
1. Pressing the OUTPUT button when the output LED is on will open the AC source output
relays. The programmed voltage setting will remain at the last program value.
2. Pressing the OUTPUT button again will close the output relay and the output voltage will
revert to the last programmed value.
4.2.6 Measure Peak Inrush Current (Requires -OP1 Option)
The peak current measurement function of the 2003RP uses a sample and hold circuit to
track the highest peak current found until reset. The peak current sample and hold circuit is
reset any time the user toggles away from the peak current display mode to a different
measurement.
The peak inrush current for a unit under test can be measured using this function as follows:
1. Program the output to zero volts and open the output relay using the OUTPUT button.
2. Use the PHASE button to select phase A.
3. Use the SELECT button to display the present peak current value.
4. Use the SELECT button again to toggle to any other measurement readout. This will
reset the peak current sample and hold circuit to zero amps.
5. Use the left control knob to set the voltage to the nominal supply voltage of the unit under
test.
6. Use the OUTPUT button to apply the programmed voltage to the unit under test.
7. Use the SELECT button to display the measured peak current value.
Note: The 2003RP output is turned on at random phase angle. It may be
necessary to repeat this test to find the highest possible peak inrush
current demanded by the unit under test.
Phase angle control is available over the bus if the –OP1 option package
with IEEE-488/RS232C interface is installed.