NARDA nbm-520 User Manual

2.4 Dangers from electromagnetic fields
Narda NBM-520 9
2.4 Dangers from electromagnetic fields
Strong Fields
Very high field strengths can occur in the vicinity of
some radiation sources.
 Do not cross or ignore safety barriers or markings.
 Persons with electronic implants (e.g. heart pacemak-
ers) must avoid danger zones.
Measurement Errors
Metallic labels (stickers) affixed to the yellow sensor
area of the probe can lead to measurement errors, usu-
ally an underestimation of the electromagnetic field
strength.
 Affix labels of any type only to the black probe shaft.
 If the instrument malfunctions, take it out of service and
contact your Narda Service Center. The addresses are
listed at the end of this operating manual and on the In-
ternet at http://www.narda-sts.com.
Probe is not operating properly
Possibly present high radiation values are not recog-
nized.
 Check probes for proper operation with a signal source
before using this measuring instrument. This is espe-
cially important for thermocouples because the sensors
can be affected by various mechanical and environmen-
tal stressors.
Narda offers portable sources to accomplish this import-
ant step (see “Accessories” on page 57).
 Before beginning any RF radiation measurement, al-
ways inform yourself of the frequencies and field
strengths that you could expect to encounter.
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NARDA nbm-520 Specifications

General

Brand	NARDA
Model	nbm-520
Category	Measuring Instruments
Language	English