Agilent Technologies 6011A, 6010a, 6012B, 6023A, 6028A manual Turn-On Checkout Procedure, Display OVP

Number

Controls/Indicators

Table 3-1. Controls and Indicators

Description

Page

1

2

3

4

5

6

7

8

9

10

11

12

13

LINE Switch

VOLTAGE CONTROL

CURRENT CONTROL

OVP ADJUST

Voltage Display

Current Display

DISPLAYS SETTINGS Pushbutton Switch

DISPLAY OVP

Pushbutton Switch

CV Status Indicator

CC Status Indicator

UNREGULATED Status Indicator

OVERVOLTAGE Status Indicator

OVERTEMPERATURE Status Indicator

Pressing at the top of the switch applies ac mains voltage to the units bias and power circuits. Unit is operational approximately 3 seconds after power on.

Clockwise rotation increases the output voltage, 0 to full scale Vdc.

Clockwise rotation increases the output current, 0 to full scale Adc.

The recessed, single-turn screwdriver control sets the overvoltage protection trip voltage

A3-1/2-digit display with automatically positioned decimal point that can indicate output voltage, output voltage setting or overvoltage shutdown setting. During an error condition, the output may exceed the display range and the display will indicate + OL. A 3-1/2 digit display with automatically positioned decimal point that can indicate output current or output current setting. During an error condition, the output may exceed the display range, and the display will indicate + OL.

Causes numeric displays to indicate programmed voltage and current values, rather than actual output values; allows both settings to be made without the necessity of opening or shorting load.

Causes VOLTS display to indicate OVP trip voltage, AMPS display is blanked; allows setting to be made without changing output settings or load connections

CV (Constant Voltage) indicates that the power supply is regulating its output at a constant voltage.

CC (Constant Current) indicates that the power supply is regulating its output at a constant current.

UNR (Unregulated) indicates that the power supply is operating beyond its maximum output power specification and that the output is not regulated or has been shutdown by a protective circuit.

OV (Overvoltage) indicates that the power supply output has been shut down and latched by the occurrence of an overvoltage condition. Removing the cause of the overvoltage and turning the supply off and back on will reset the unit.

OT (Over temperature) indicates an overheating condition on either the diode or FET boards. OT automatically resets when the temperature drops to a safe operating level.

27

27

27

30

27

27

33, 34

33, 34

33

34

31, 32

31

31

Turn-On Checkout Procedure

WARNING: Before the instrument is turned on, all protective earth terminals, extension cords, and devices connected to the power supply should be connected to a protective earth ground. Any interruption of the protective earth grounding will cause a potential shock hazard that could result in personal injury.

Caution: This instrument can be damaged by electrostatic discharge into the control connectors, or the switches on the rear panel even while the unit is turned on. Do not cause an electrostatic discharge into these connectors and switches (which may occur when they are touched). Also, consistent with good engineering practice, leads attached to customer accessible signal/monitoring ports should be twisted and shielded to maintain the instruments specified performance.

The following procedure ensures that the supply is operational, and may be used as an incoming inspection check.

26 Operating Instructions