Calibration Procedures 3
Keysight E3633A and E3634A Service Guide 83
13 Select the low current calibration point. (‘‘I LO 0.2000 A’’ - E3634A model)
The display shows the low current calibration point.
14 Read the DVM and change the low current value on the display to match
the computed current (DVM reading ÷ by shunt resistance).
For example, if the computed value is 0.4990 A, adjust the current to 0.4990 A
using the knob and arrow keys.
Notice that you should wait for the DVM reading to stabilize for accurate
calibration.
15 Pressing the “Calibrate” key saves the change and selects the middle
current calibration point. (“I MI 3.5000 A’’ - E3634A model)
If the entered number is within an acceptable range, an “ENTERED” message
appears for one second. If the entered number is not correct, an “MIN VALUE”
or “MAX VALUE” message appears for one second and the display shows the
low current calibration point again. The display now shows the middle current
calibration point.
16 Read the DVM and change the middle current value on the display to match
the computed current (DVM reading ÷ by shunt resistance).
For example, if the computed value is 9.999 A, adjust the current to 9.999 A
using the knob and arrow keys.
Notice that you should wait for the DVM reading to stabilize for accurate
calibration.
I LO 0.5000 A (E3633A)
I LO 0.4990 A
I MI 10.000 A (E3633A)
I MI 09.999 A
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