3 Operating the Power Supply Locally

Turn-On Check-Out

Before Check-Out

Ensure that the power supply is configured as follows:

• The unit is connected to an appropriate AC source as

 

described in chapter 2.

 

• The POWER switch is in the off position.

 

• Sense connector pins 1 and 2 are jumpered; sense connector

 

pins 4 and 5 are jumpered.

 

• All switches on Connector J2 are in the down position.

 

SHOCK HAZARD Be aware that hazardous voltages can be present on the

WARNING

 

output terminals. Do not set the output voltage above 40 VDC during the turn-

 

on check-out procedure.

 

 

Constant Voltage Check

Turn the POWER switch on.

Turn the output on by pressing the OUT ON button. The green OUT ON indicator should be illuminated.

The green CV indicator should also be illuminated. If the CC indicator is illuminated, rotate the current knob until the CV indicator becomes illuminated.

Rotate the voltage knob while observing the DC VOLTS display. The output voltage should vary while the knob is turned. The voltage range is from zero to the maximum rated output for the power supply model.

OVP Check

Rotate the voltage knob and set the output voltage of the unit to 50% of its full-scale rating or 30 volts, whichever is lower.

Press the OVP/UVL button once so that the DC AMPS display indicates OUP. The DC VOLTS display shows the OVP level.

Use the voltage knob and set the OVP level of the unit to 75% of its full-scale voltage rating or 40 volts, whichever is lower.

Wait a few seconds until the DC VOLTS display returns to show the output voltage.

Use the voltage knob and raise the output voltage of the unit until it approaches the OVP setting. Check to make sure that the output voltage cannot be set higher than the OVP setting.

Press the OVP/UVL button again. Rotate the voltage knob and reset the OVP level of the unit to its maximum setting.

34

Series N5700 User’s Guide

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Agilent Technologies 5749A Turn-On Check-Out, Before Check-Out, Constant Voltage Check, OVP Check, On check-out procedure

5751A, 5744A, 5743A, 5750A, 5749A specifications

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