Model 78 and 78-1
Technical Manual
Section 5
Ludlum Measurements, Inc.
Page 5-2
March 2021
The Model 78 Digital Analog Stretch Scope is marked with
the following symbols:
CAUTION
(per ISO 3864, No. B.3.1) – designates hazardous live voltage and risk of
electric shock. During normal use, internal components are hazardous live. This
instrument must be isolated or disconnected from the hazardous live voltage before
accessing the internal components. This symbol appears on the front panel.
Note the
following precautions:
Warning!
The operator is strongly cautioned to take the following precautions to avoid
contact with internal hazardous live parts that are accessible using a tool:
1. Turn the instrument power
OFF
and remove the batteries.
2. Allow the instrument to sit for one minute before accessing any internal
components.
The “
crossed-out wheelie bin
” symbol notifies the consumer that the product is not to
be mixed with unsorted municipal waste when discarding; each material must be
separated. The symbol is placed on the front panel. See Section 9, “Recycling,” for further
information.
The “CE” mark is used to identify this instrument as being acceptable for use within the
European Union.
Cleaning and Maintenance Precautions
The Model 78 may be cleaned externally with a damp cloth, using only water as the
wetting agent. Do not immerse the instrument in any liquid. Observe the following
precautions when cleaning or performing maintenance on the instrument:
1.
Turn the instrument
OFF
and remove the batteries.
2.
Allow the instrument to sit for one minute before cleaning the exterior or
accessing any internal components for maintenance.
