Service manual

10 Verification
Table 2-1. Test Equipment Required
Type Required Characteristics Recommended Model
Digital Voltmeter
1
Resolution: 10 nV @ 1V Agilent 3458A
Readout: 8 1/2 digits
Accuracy: 20 ppm
Current Monitor Resistor
1
Agilent 6691A, 6692A: Guildline 9230/300
0.001Ω ± 0.04%, 300A, 100W
Agilent 6690: Burster Type 1280
0.0001Ω ± 0.05%, 1000A, 100W
DC Power Supply
DC Power Source with current capability
equal to UUT
Agilent 6680A
Electronic Load
Resistor Load
Range: Voltage and current range must
exceed that of supply under test. Power:
7kW minimum
or
6.6 Kilowatt minimum
Agilent 6690A = 34.1 milliohms 6600W
Agilent 6691A = 136 milliohms 6600W
Agilent 6692A = 545 milliohms. 6600W
4 each Agilent N3300A, with/3
each Agilent N3306A per
mainframe for all units
Oscilloscope
Sensitivity: 1mV Agilent Infinium
Bandwidth Limit: 20MHz or equivalent
Probe: 1:1 with RF tip
RMS Voltmeter
True RMS Bandwidth: 20MHz Rhode & Schwartz
Sensitivity: 100 µV
Model URE3 RMS-P-P
voltmeter
Current Transformer
0.1Volt per ampere: 1Hz to 20MHz Pearson Model 411
Variable-Voltage
Transformer (AC Source)
Power: 3 Phase 24KVA; Range:
180-235V 47 - 63Hz; 360- 440V
47 - 63Hz
Superior Powerstat
1156DT-3Y, 0-280V, 50A,
24.2 KVA or equivalent .
GPIB Controller
2
Full GPIB capabilities HP Series 200/300
1
Required for Operation Verification Tests.
2
Required for remote testing of 669xA models.
Programming the Tests
General Considerations
Procedures are given for programming these tests either from the front panel keypad or from a GPIB controller. The
procedures assume you know how to use the front panel keypad or how to program over the GPIB (see the Power Supply
Operating Manual for more information). When using computer-controlled tests, you may have to consider the relatively
slow (compared to computer and system voltmeters) settling times and slew rates of the power supply. Suitable WAIT
statements can be inserted into the test program to give the power supply time to respond to the test commands.
This power supply can provide more than 240VA at more than 2 volts. If the output connections touch each
other, severe arcing can occur resulting in burns, ignition or welding of parts. DO NOT ATTEMPT
TO MAKE CONNECTIONS WHILE OUTPUT POWER IS ON. These connections should be performed
only by qualified electronics personnel.