Tektronix Thermometer P6249 Manuale Utente Scaricare il pdf (Pagina 62)

Adjustments

P6249 4 GHz 5X Active Probe Instruction Manual

Offset Zero

Use this procedure to adjust the probe offset zero.

NOTE. If your oscilloscope has a probe calibration routine, clear the

probe calibration constants at this time.

If the offset zero is adjusted, perform a functional check of the offset

range before closing the compensation box.

1. Ground the probe tip by connecting the probe tip to the probe

ground socket.

2. Set the channel vertical offset to 0.00 V.

3. Measure the displayed DC level.

4. Adjust Offset Zero for 0.00 ± 15 mV. (±3 mV when measured

directly without attenuation factor.)

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Tektronix Thermometer P6249 Manuale Utente Pagina 62