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16 UDA2182 Universal Dual Analyzer Product Manual January 2009
4.2 General Wiring Practices
WARNING
Qualified personnel should perform wiring only.
Safety precaution
WARNING
A disconnect switch must be installed to break all current
carrying conductors. Turn off power before working on
conductors. Failure to observe this precaution may result in
serious personal injury.
WARNING
An external disconnect switch is required for any hazardous
voltage connections to the relay outputs.
Avoid damage to components
ATTENTION
This equipment contains devices that can be damaged by electrostatic discharge (ESD). As
solid-state technology advances and as solid-state devices get smaller and smaller, they
become more and more sensitive to ESD. The damage incurred may not cause the device to
fail completely, but may cause early failure. Therefore, it is imperative that assemblies
containing static sensitive devices be carried in conductive plastic bags. When adjusting or
performing any work on such assemblies, grounded workstations and wrist straps must be
used. If soldering irons are used, they must also be grounded.
A grounded workstation is any conductive or metallic surface connected to an earth ground,
such as a water pipe, with a 1/2 to 1 megohm resistor in series with the ground connection. The
purpose of the resistor is to current limit an electrostatic discharge and to prevent any shock
hazard to the operator. The steps indicated above must be followed to prevent damage and/or
degradation, which may be induced by ESD, to static sensitive devices.
Wiring for immunity compliance
In applications where either the power, input or output wiring are subject to
electromagnetic disturbances, shielding techniques will be required. Grounded metal
conduit with conductive conduit fittings is recommended.
Connect the AC mains through a fused disconnect switch.
Conform to code
Instrument wiring should conform to regulations of the National Electrical Code.