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P7240 4 GHz 5X Active Probe User Manual
17
Operating Basics
Please follow these operating guidelines to get optimum performance
from your P7240 probe.
Handling the Probe
Exercise care when using and storing the P7240. The probe and cable
are susceptible to damage caused by careless use. Always handle the
probe using the compensation box and probe head, a voiding undue
physical strain to the probe cable, such as kinking, excessive
bending, or pulling. Visible dents in the cable will increase signal
aberrations. Do not drop the probe or subject it t o physical shock.
Damage to the probe may result.
Maximum Nondestructive Input Voltage
The P7240 is elec trically protec ted against static volta ge; however,
applying voltages above its design limits may damage the probe tip
amplifier. Refer to Specifications on page 23 for the maximum
operating voltage and frequency derating information.
Input Linear Dynamic Range
The probe head amplifier used by the P7240 has a limited linear
operating range. To keep the i nput linearity error less than 1. 0%, you
must limit the apparent signal i nput voltage to ±2.0 V.
Use the DC offset adjustment to maintain the probe within its
dynamic range. The nominal offset adjustment range of the P7240 is
±5.0 VDC.
NOTE. The probe can tolerate input v oltages of ±30 V without
damage; however, the linearity error specification does not apply to
input voltages exceeding ±7.0 V (including any DC offset). See
Figure 4 on page 16.