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8
CC Mode Test
This test verifies that the module operates in the CC Mode and that the current programming and readback to the front panel
display are within specifications. For each DMM reading, the front panel display should be equal to:
60501B: DMM reading in amps ± ((DMM reading in amps x 0.0006) + 0.040).
60502B: DMM reading in amps ± ((DMM reading in amps x 0.0005) + 0.065).
If the test readings significantly disagree with the specified values or no readings can be recorded, perform the CC MODE
TEST troubleshooting procedures in Figure 3-1 in Chapter 3 of the mainframe Service Manual. If the readings are out of
tolerance, calibrate the applicable current range (see Chapter 6 in the Operating Manual).
a. Connect the Electronic Load, power supply (Agilent 6031A or equivalent), DMM, and the 0.010 ohm current monitor
resistor as shown in Figure 2-1.
Figure 2-1. Test Setup A
b. Turn on the Electronic Load.
c. Check the high amp current range as follows:
1. Press
, then
60501B:
.
60502B:
.
2. Turn on the power supply and set for:
60501B: 5V and >30A.
60502B: 5V and >60A.
3. Wait 30 seconds and then record the DMM and front panel display readings. DMM reading should be between:
60501B: 299.3mV (29.930A) and 300.7mV (30.070A).
60502B: 598.6mV (59.86A) and 601.3 mV (60.135A).
Note that the Electronic Load's CC annunicator is on.
4. Press
.
5. Wait 30 seconds then record the DMM and front panel display readings. DMM reading should be between:
60501B: 9.59mV (0.959A) and 10.41mV (1.041A).
60502B: 9.24mV (0.924A) and 10.76mV (1.076A).