Sensor Is Not Installed Or Operating Properly; Dangers From Ac Mains Charger - NARDA nardalert S3 Operating Manual

2.4 Dangers from AC mains charger

Sensor is not installed or operating properly

The NS3 is designed to monitor the presence of the sensor and that the
sensor is functional.
 Ensure that the sensor is attached properly to the basic unit. 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.
 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.
 Before beginning any RF radiation measurement, always inform
yourself of the frequencies and field strengths that you could be
expected to encounter.
⚠ WARNING
Danger from mains voltage.
You could experience electric shock from the
external power supply.
Do not open the charger as there are no user

serviceable parts inside.
Do not expose or submerse the charger in water at

any time. It is designed to be used in an indoor,
protected environment.
Only use appropriate USB adapter cords. Never

use a damaged USB cord.
Only supply AC voltage that meets the voltage

specified at the AC input on the Charger. The AC
mains charger could be destroyed if the voltage
specification of the charger does not match the AC
line voltage.
Nardalert S3
2 Safety instructions
11