Atec Narda-8800 Series - Manual

Personal and Area Monitors
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435 MORELAND ROAD • HAUPPAUGE, NY 11788
USA TEL: 516 231-1700 • INT’L TEL: (1) 516 231-1390 • FAX (1) 516 231-1711
E-MAIL: [email protected] • www.nardaeast.l-3com.com
SMARTS TM
AREA MONITORS
• 2 MHz to 100 GHz Detection
• Audible, Visible, Remote Alarms
• Continuous, Automatic Monitoring
• Failsafe
• Requires No Operator
• Indoor and Outdoor Models
DESCRIPTION
Narda’s SMARTS family of area monitors provides con-
tinuous detection of RF radiation within a specific area.
Models are available to cover any frequency between
2 MHz and 100 GHz. These monitors represent a major
advance in safety monitoring programs for non-ionizing
radiation. In the past, a safety program was limited to per-
forming periodic surveys of a particular system or area,
which meant an acute failure could go undetected until the
next survey was performed. And since all major interna-
tional safety standards set limits for average exposure
level over a few minutes, the use of survey instruments
alone meant a hazardous condition could exist for days,
weeks, or even months. With the SMARTS, potentially
hazardous areas can be continuously monitored to help
insure a hazard-free environment as well as compliance
with industry and government standards.
Four models cover wide frequency bands from 2 MHz to
100 GHz. Model 8810 covers the 2 to 30 MHz HF band,
Model 8815 operates from 10 to 500 MHz, and Model 8820
monitors frequencies between 500 MHz and 18 GHz. The
ultra broadband Model 8825B covers 500 MHz to 100
GHz.
Each model features a unique design for accurate detec-
tion in a specific environment. At low frequencies, such as
those around HF antennas and metallic shelters, the elec-
tric field component is typically greatly distorted. There-
fore, the Model 8810 (2 to 30 MHz) monitors the magnetic
field which is more consistent in these environments. The
standards from Australia, Germany, the U.K. and the U.S.
all vary permissible exposure levels by 20 dB over these
frequencies. The Model 8810’s frequency curve has a
shape very similar to these standards. Its alarm threshold
is set to approximately one tenth of the exposure limits to
provide coverage over an area of several square meters.
The Model 8815 (10 to 500 MHz) utilizes what has been
termed “transitional” monitoring. At frequencies below ap-
proximately 200 MHz, it responds to the magnetic field
component and it transitions to electric field detection at
frequencies above 200 MHz.
Model 8820 (500 MHz to 18 GHz) and Model 8825B
(500 MHz to 100 GHz) use broadband thermocouple
detectors to monitor the electric field. Both models
sound an alarm only when the average power level is ex-
ceeded and are ideal for use with microwave systems
where pulse modulation is normally employed.
SMARTS monitors are available in a totally nonmetallic,
weatherproof enclosure for outdoor mounting. This en-
closurewillprotecttheSMARTSfromdust,rain,orheavyseas.
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