Atec Narda-8800 Series - Manual (Page 2)

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
Personal and Area Monitors
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OPERATION
Indoor SMARTS
SMARTS monitors operate like common household
smoke detectors. When operating normally, the alarm
LED will flash approximately every 40 seconds. If the main
battery needs to be replaced, the flash will be accompa-
nied by a “chirp.” When the SMARTS detects radiation at
its preset alarm threshold or higher, a continuous audible
and visual alarm is generated. During this alarm period an
electronic signal is provided at the STATUS jack (J1) to ac-
tivate various user-supplied remote circuitry. If the main
battery drops below critical levels, or if the detection ele-
ments should fail, the system will remain in the alarm
mode until the problem is corrected. If the main battery
should fail completely there will still be a voltage at the J1
produced by a backup battery circuit.
Operation can be verified at any time by depressing the
TEST button which activates a full system test. In situa-
tions where standard operating procedure produces RF
or microwave power in excess of the threshold and expo-
sure to people is possible (e.g., in an anechoic chamber or
on the deck of a ship), the Model 8808 Personnel Sensor
can be used. This sensor will disable the SMARTS alarm
(via the J2 ENABLE jack) unless personnel and high
power radiation are both present.
Outdoor SMARTS
Since standard visual and audio signals would be masked
by the weatherproof enclosure, outdoor SMARTS models
supply information to a remote location via a weather-
proof, multi-pin, MIL-type connector (J101). Normal or
alarm STATUS information is continuously available at this
remote location. Also operated by remote control are the
ENABLE jack (J2) and the TEST function. Outdoor
SMARTS models operate from an external low voltage,
very low current supply brought in through the same con-
nector. This separate DC source allows operation over a
broader temperature range.
The comprehensive SMARTS family of area monitors
should be part of every safety program involved with high
power RF or microwave energy. Other options or configu-
rations, such as different alarm thresholds or calibration
frequencies, can be provided. Consult the factory for details.
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