Avoiding Costly Repairs - Keysight N7020A User Manual

Avoiding Costly Repairs

When connecting or using the probe, use caution to avoid damaging the
oscilloscope's channel input circuits due to electrostatic discharge (ESD).
When the probe is connected to the oscilloscope, the
CAUTION
oscilloscope's channel input circuits can be damaged by
electrostatic discharge (ESD). Avoid applying static
discharges to the probe input. Prior to energizing and
connecting any accessory cable to the probe,
momentarily short the center and outer conductors of
the cable together. Be sure that the instrument is
properly earth-grounded to prevent buildup of static
charge. Wear a wrist-strap or heel-strap.
Figure 10
types of ESD protection:
• Conductive table-mat and wrist-strap combination.
• Conductive floor-mat and heel-strap combination.
Both types, when used together, provide a significant level of ESD protection. Of
the two, only the table-mat and wrist-strap combination provides adequate ESD
protection when used alone. To ensure user safety, the static-safe accessories
must provide at least 1 MΩ of isolation from ground. Purchase acceptable ESD
accessories from your local supplier.
These techniques for a static-safe work station should not be used when working on
WARNING
circuitry with a voltage potential greater than 500 volts.
N7020A User's Guide
on page 32 shows an example of a static-safe work station using two
2
Using the N7020A
31