Output Current And Readback Current Tc; Negative Current Limit (-Cc) Readback Tc - Agilent Technologies 6622A Service Manual

j. Repeat steps a through i for each output in your supply.

3-37 Output Current and Readback Current TC

a. Repeat steps a through d of paragraph 3-33.
b. Set the temperature chamber to 30 degrees C and allow
30 minutes for the output to stabilize.
c. Record the output current (DVM reading X 10).
d. Readback the output current over the GPIB and record
the value.
e. Increase the temperature to 40 degrees C and wait 30
minutes for the output to stabilize.
f. Repeat steps c and d. Note the difference between the
values read before and after the temperature change.
The differences should not be more than those listed
below for the particular output being tested.
Current
Output TC Spec.
40WLV 10 mA
80WLV 20 mA
40WHV 4.2 mA
80WHV 8.4 mA
Current
Readback
TC Spec.
6.25 mA
12.5 mA
2.4 mA
4.9 mA
3-15
g. Repeat steps a through f for each output in your
supply.
3-38 Negative Current Limit (-CC)
Readback TC
a. Repeat steps a through d of paragraph 3-24.
b. Set the temperature chamber to 30 degrees C and allow
30 minutes for the output to stabilize.
c. Record the negative current limit value (DVM reading x
10).
d. Readback the current over the GPIB and record this
value.
e. Increase the temperature to 40 degrees C and wait 30
minutes for the output to stabilize.
f. Repeat steps c and d. Note the difference between the
values read before and after the temperature change.
The differences should not be more than those listed
below for the particular output being tested.
Negative Current
Output Readback TC Spec
40WLV
80WLV
40WHV
80WHV
Limit
11.3 mA
22.6 mA
4.4 mA
8.6 mA