NARDA nardalert S3, Operating Manual

Page: 17 / 40

3 Preparing the Nardalert S3 for use
Nardalert S3 17
3.4 Connecting the sensor
⚠ WARNING
Strong electromagnetic fields
If the Sensor is not operating properly, or if the
proper sensor is not chosen, you could be
exposed to high field levels without your
knowledge.

Refer to Sensor Specifications on page 34 to
select appropriate sensor(s).

Follow instructions below to properly connect
sensor.
The NS3 is designed to monitor the presence of the sensor and that the
sensor is functional. In order to simplify the turn-on procedure, it is
recommended that the sensor be connected to the NS3 and the battery
fully charged before beginning.

Ensure that the sensor is attached properly to the basic unit. The
sensor is positioned so that it easily can be inserted and secured to
the basic unit by tightening the two screws shown on page 15 ( Rear
Panel ). Sensor is designed to be even with the surface of the basic
unit and to pass a functional test at turn-on. If in doubt, cycle unit off
and then on again to perform connection test. If the sensor is
defective, not installed or failing pre-test, it will cause the system to
not proceed to measurement 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.

Confidence 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 transmitting 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 field strengths that you could be expected
to encounter.