Model 2929 Scaler Technical Manual Section 4
Ludlum Measurements, Inc. Page 4-2 January 2016
Caution!
Verify instrument voltage input rating before connecting to a
power converter. If the wrong power converter is used, the
instrument and/or power converter could be damaged.
The Model 2929 is marked with the following symbols:
DIRECT CURRENT (DC) (IEC 417, No. 5032): designates an input
receptacle that accommodates a power cord intended for connection to DC
voltages. This symbols appears on the back panel.
CAUTION, RISK OF ELECTRICAL SHOCK (per ISO 3864, No.
B.3.6): designates a terminal (connector) that allows connection to a voltage
exceeding 1 kV. Contact with the subject connector while the instrument is
on or shortly after turning off may result in electric shock. This symbol
appears on the front panel.
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 disconnect the power
cord.
2. Allow the instrument to sit for one minute before accessing
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 near the DC
receptacle. See section 5, “Recycling” for further information.
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