4
PRECAUTIONS
Static Electricity
CAUTION! This device contains static sensitive circuit cards and components.
Improper handling of these devices or printed circuit cards can result in damage to or
destruction of the component or card. Such actual and/or consequential damage IS
NOT covered under warranty and is the responsibility of the device owner. Electronic
components must be handled only by qualified electronic technicians who follow the
guidelines listed below:
ATTENTION!
ALWAYS use a properly grounded wrist strap when handling,
removing or installing electronic circuit cards or components. Make certain that the
wrist strap ground lead is securely attached to an adequate ground. If you are
uncertain of the quality of the ground, you should consult a licensed electrician.
ALWAYS handle printed circuit card assemblies by the outermost edges. NEVER
touch the components, component leads or connectors.
ALWAYS observe warning labels on static protective bags and packaging and
NEVER remove the card or component from the packaging until ready for use.
ALWAYS store and transport electronic printed circuit cards and components in anti-
static protective bags or packaging.
Environmental
In general, the 777 Indicator will perform
well within a temperature range of
14 to 104 °F (-10 to +40 °C ).
In order to keep cooling requirements to a
minimum, the indicator should be placed
out of direct sunlight and to provide
adequate air circulation, keep the area
around the indicator clear.
Make certain the instrument is not directly
in front of a heating or cooling vent. Such
a location will subject the indicator to
sudden temperature changes which may
result in unstable weight readings.
Insure that the indicator has good, clean
AC power and is properly grounded.
In areas subject to lightning strikes,
additional protection to minimize lightning
damage, such as surge suppressors,
should be installed.