Keysight N5256A, Руководство пользователя

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N5256/7/8A/B
Electrostatic Discharge Protection
Electrostatic Discharge Protection
Protection against electrostatic discharge (ESD) is essential while removing assemblies
from or connecting cables to the instrument. Static electricity can build up on your
body and can easily damage sensitive internal circuit elements when discharged.
Static discharges too small to be felt can cause permanent damage. To prevent
damage to the instrument:
• always have a grounded, conductive table mat in front of your test equipment.
• always wear a grounded wrist strap with grounding cord, connected to a grounded
conductive table mat, having a 1 MW resistor in series with it, when handling
components and assemblies or when making connections.
• always wear a heel strap (9300-1126) when working in an area with a conductive
floor. If you are uncertain about the conductivity of your floor, wear a heel strap.
• always ground yourself before you clean, inspect, or make a connection to a
static-sensitive device or test port. You can, for example, grasp the grounded outer
shell of the test port or cable connector briefly.
• always ground the center conductor of a test cable before making a connection to
the analyzer test port or other static-sensitive device. This can be done as follows:
1. Connect a short to one end of the cable to short the center conductor to the
outer conductor.
2. While wearing a grounded wrist strap, grasp the outer shell of the cable
connector.
3. Connect the other end of the cable to the test port and remove the short from
the cable.
Figure 15 ESD Protection Setup
Keysight N5256/7/8A/B User's Guide 27