natus Quantum, Руководство пользователя и обслуживания

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Natus Quantum Amplifier User & Service Manual
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3.3. Procedures and Warnings
3.3.1. Electrostatic Discharge (ESD) Handling
Before performing any setup or placement procedures, read the precautions outlined in this section.
WARNING: Be sure to take the appropriate Electrostatic Discharge (ESD) precautions.
Disconnect the cables before moving, cabling, or performing any set up procedures.
Some semiconductor (solid state) devices can be easily damaged by static electricity.
Such components are commonly called Electrostatically Sensitive Devices (ESD). Do
not touch the accessible conductive parts for the Connectors marked with the ESD
symbol.
Follow these techniques to help reduce the incidence of component damage caused by static electricity:

Immediately before handling any product components assemblies, drain the electrostatic charge
from your body by touching a known earth ground.

Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing
clothes together or lifting your foot from a carpeted floor can generate enough static electricity to
damage the product components.

Avoid carpets in cool, dry areas. If provided, leave the product components in their anti-static
packaging until ready to be installed.

Take care when connecting or disconnecting cables. When disconnecting a cable, always pull on
the cable connector or strain-relief loop, not on the cable itself.
WARNING: A damaged cable can cause a short in the electrical circuit. Prevent damage to
the connectors by aligning connector pins before you connect the cable.
WARNING: Misaligned connector pins can cause damage to system components at power-
on.
3.3.2. Conducted Immunity Procedures and Warnings
Conducted immunity is defined as the ability of an electronic product to tolerate the influence of electrical
energy from other electronic products or electromagnetic phenomena.
The electrical energy from other electronic devices located in nearby equipment are usually propagated
through the connecting cables. The functionality of some Semiconductor devices and high sensitivity
amplifiers (EEG, EMG ECG) may be affected by induced parasitic signals.
This effect could be described as noise and/or channel saturation on the EEG waveforms, which are
coupled together with off the scale values for auxiliary sensors.