Model 3000 Survey meter User’s Manual Section 8
Ludlum Measurements, Inc. Page 8-1 April 2021
Safety Considerations
Environmental Conditions for Normal Use
Indoor or outdoor use (While rain resistant, user is cautioned to avoid
getting water through detector opening.)
No maximum altitude
Temperature range of -20 to 50 °C (-5 to 122 °F), may be certified for
operation from -40 to 65 ˚C (-40 to 150 ˚F)
Maximum relative humidity of less than 95% (non-condensing)
Pollution Degree 3 (as defined by IEC 664): (Occurs when conductive
pollution or dry nonconductive pollution becomes conductive due to
condensation. This is typical of industrial or construction sites.)
Not certified for use in an explosive atmosphere
Warning Markings and Symbols
Caution!
The operator or responsible body is cautioned that the
protection provided by the equipment may be impaired if the
equipment is used in a manner not specified by Ludlum
Measurements, Inc.
The Model 3000 Survey meter 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
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