Tektronix Thermometer P6249 User Manual download pdf (Page 63)

Adjustments

P6249 4 GHz 5X Active Probe Instruction Manual

Offset Range

Use this procedure to adjust the offset range of the probe. The offset

zero of the probe should be checked before making any adjustment

to the offset range. The offset range of the probe is approximately

–3.5 to +3.5 volts.

1. Power on the 1103 power supply and turn on the offset.

2. Using a DMM, adjust the 1103 offset voltage to –0.5 V. Refer to

Figure 16 for the location of the offset voltage test point.

Offset voltage

Ground

Figure 16: 1103 power supply offset voltage location

3. Connect the equipment as shown in Figure 17. Take care not to

disturb the offset level setting on the 1103 power supply.

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Tektronix Thermometer P6249 User Manual Page 63