12
c. Set power supply for:
6060B: 61V and 5A.
6063B: 250V and 1A.
d. Record the DMM and front panel display readings. DMM reading should be between:
6060B: 59.890V and 60.110V.
6063B: 239.59V and 240.408V.
Note that the Electronic Load's CV annunciator is on.
e. Press VOLT 3 Enter
.
f. Record the DMM and front panel display readings. DMM reading should be between:
6060B: 2.947V and 3.053V.
6063B: 2.876V and 3.123V.
CR Mode Test
This test verifies that the Electronic Load operates in the CR Mode and that the resistance programming is within
specifications. The programmed resistance values are checked by recording the voltage across the current monitor resistor
and the input voltage (voltage across the Electronic Load's input terminals), and then calculating the resistance value as
follows:
Load resistance = Input voltage/(voltage across resistor/resistor value)
Note if the calculation significantly disagrees with the specified range of values, perform the CR MODE TEST
troubleshooting procedures in Figure 3-1 in Chapter 3. If the calculation is out of tolerance, calibrate the applicable
resistance range (see Chapter 6 in the Operating Manual).
a. Connect the Electronic Load, power supply (Agilent 6032A/6035A or equivalent), and the 0.100 ohm current monitor
resistor as shown in Figure 2-1. Use the DMM to measure the voltage across the monitor resistor and across the
Electronic Load's input terminals.
b. Check the low ohm range as follows:
1. Press MODE RES Enter , then
6060B:
Range 0
.
9 Enter ; RES 1 Enter
.
6063B:
Range 1 Enter ; RES 2 4 Enter
.
2. Turn on power source and set for:
6060B: 15V and 10.9A.
6063B: 15V and 1.82A.
For the low ohm range test, the power supply will operate in the current limit mode.
3. Measure the voltage across the monitor resistor and across the input terminals, then calculate the Electronic Load
resistance. The result should be between:
6060B: 0.984 and 1.016 ohms.
6063B: 23.6 and 24.4 ohms.
Note that the Electronic Load's CR annunciator is on.
4. Then press:
6060B:
RES 0
.
05 Enter
.
6063B:
RES 1 Enter
.
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