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52
P6249 4 GHz 5X Active Probe Instruction Manual
1103
Power supply
– +
Power supply
+
Digital multimeter
–
BNC-to-dual
Banana Adapter
50W Precision
terminator
Figure 17: P6249 offset range setup
4. Set the DC power supply (using the DMM) to +2.5 VDC.
5. Observe the DC value on the DMM.
6. Adjust Offset Range for a DMM reading of 0 V ±5 mV. Refer to
Figure 15 on page 49 for the location of the offset range
adjustment.
NOTE. After the offset zero and offset range have been adjusted,
perform a probe calibration and functional check to verify perfor-
mance.