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12
Transient Operation and Slew Circuit Test
This test verifies transient and slew circuit operation. The slew circuits cannot be calibrated. If slew rise time and/or fall
time are not within specifications or the slew circuits are inoperative, perform either the "Transient Generator
Troubleshooting", or the "Slew Circuit Troubleshooting" in Chapter 3 of the mainframe Service Manual.
a. Use the test setup of Figure 2-1 except connect an oscilloscope across the 0.10 current monitor resistor in place of the
DMM. Set power supply for:
60501B: 5V and 5A.
60502B: 10V and 10A.
b. Recall the factory default values by pressing
.
c. Select the low current range by pressing
60501B:
.
60502B:
.
d. Set up transient operation by pressing
, then
60501B:
.
60502B:
.
e. Set the slew rate to .05A/µs (50A/ms) by pressing
(blue shift key), then
, then
.
f. Adjust the oscilloscope for a single rise or fall time display. Use delayed sweep. The rise time when measures from
10% to 90% or the fall time when measured from 90% to 10% should be between:
60501B: 30 and 50µs.
60502B: 75 and 125µs.
Note that the Electronic Load's Tran annunciator is on.
60501B: 10µs/DIV
60502B: 20µs/DIV
SLEW 0.05
g. Set the slew rate to .0025A/µs (2.5A/ms) by pressing (blue shift key), then
, then
.