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7
2
Verification
Introduction
This chapter contains test procedures that check the operation and calibration of the Agilent 60501B/60502B Electronic
Load Modules. The tests are performed from the front panel of an Agilent 6050A/6051A Electronic Load Mainframe with
the module installed in slot 1. The tests can also be used to determine which circuits are faulty when troubleshooting. There
are some transient, trigger, and pulse functions that require an GPIB controller and will not be verified with manual testing
from the front panel. The following tests will verify, with a high level of confidence, that the module is operating properly
without testing all of its capabilities.
At the end of this chapter are performance record tables where actual measured values can be recorded.
Test Equipment Required
Table 2-1 lists the test equipment required to perform the tests in this chapter. Test setups for the tests are shown in Figures
2-1 through 2-3. Make sure the sense switch on the rear of the module is set to the LCL position since local sensing is used
in all of the test setups. Use adequate wire gauge when making connections (see Chapter 3 in the Operating Manual).
Note The Electronic Load must pass the selftest at power turn-on before the following tests can be performed.
If the unit fails selftest, refer to the overall troubleshooting procedures in the mainframe Service Manual.
Table 2-1. Test Equipment Required for Verification
Type Required Characteristics Recommended Model
60V/60A Source 0 to 20V/0 to 120A
0 to 60V/0 to 50A
Agilent 6031A or equivalent
Agilent 6032A or equivalent
Current Monitor
Resistor
0.10 ohms @ 15A
0.04% @ 25W
Guideline 9230/15
Current Monitor
Resistor
0.010 ohms @ 100A
0.04% @ 100W
Guideline 9230/100
Digital Voltmeter dc accuracy of 0.01%
6 digit readout
Agilent 3455A, 3456A, or 3458A
Current Probe with
Amplifier and Power
Supply
Sensitivity of 1mA/10 mV to 50MHz with
less than 300µA of noise to 5MHz.
Tektronix A6302 probe, AM503 probe amplifier,
and TM501 probe power supply.
Oscilloscope Sensitivity: 1mV
Bandwidth: 20MHz
Agilent 54504