Narda 20 Nardalert S3
3 Preparing the Nardalert S3 for use
to perform connection test. If the sensor is defective, not installed or
failing pre-test, it will cause the system to not proceed to measure-
ment mode.
Charging of the monitor is accomplished by attaching the proper AC
mains plug to the charger and then the supplied USB cable to the
charger and NS3. The unit will be rapidly charged when using the
supplied USB charger and at a slower rate (longer time) if plugged into
a computer. Charging time is approximately 4 hours for a full charge.
Note the battery Icon in the top right of the display when the unit is
energized, indicating the amount of charge.
Condence testing of RF/microwave sensors can be accomplished
with a simple 2-way radio that generates more than 1 Watt. An upscale
indication should be noticed on the display when the radio is transmit-
ting close to the sensor housing. The NS3 provides a menu screen "Self
Test", to evaluate the output from the three detectors used in the RF/
microwave sensors.
Before beginning any RF radiation measurement, always try to verify
the frequencies and eld strengths that you could be expected to
encounter.
There are many dierent sensors available for dierent applications and
use with the NS3. You can nd more information about the order numbers
and specications of the sensors under Ordering Information on page
43, as well as in the data sheets of the NS3. These documents can also be
downloaded from the Narda website on the internet at:
www.narda-sts.com.
Wrong handling of the sensor
Damage of the sensor antennas
Always try to store the sensor in the carrying case when not installed
in the NS3. This should help protect it from excessive shock and vibra-
tion, as well as environmental extremes.
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