4- 1
Keysight Electronic Calibration Modules
RF/Microwave Two Port
Reference Guide
4 Use, Maintenance, and Care of the Devices
Electrostatic Discharge
Protection against electrostatic discharge (ESD) is essential while connecting,
inspecting, or cleaning devices attached to static-sensitive circuits (such as
those found in network analyzers and ECal modules).
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. Devices such as calibration components
and devices under test (DUTs), can also carry an electrostatic charge. To
prevent damage to network analyzer components and devices:
— always wear a grounded wrist strap having a 1 MΩ resistor in series with it
when handling components and devices or when making connections to
the test set.
— always use a grounded, conductive table mat while making connections.
— always wear a heel strap 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 (from your calibration kit) 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.
4. Remove the short from the cable.
For parts numbers for ESD protection supplies, refer to “Other ECal
Accessories” on page 6-10.
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