7
5.1.
NLJD is to be operated only by persons who have been duly instructed for safety
measures while working with electric and measuring devices with open RF energy radiators.
6. Operation Order
6.1
. Remove NLJD from the package. If necessary charge the battery. After transportation at
negative temperatures it is necessary to keep NLJD in the switch-off state at room temperature
at least for 30 minutes.
6.2
. Turn NLJD on by the type-slide switch placed on the arm. The 2
nd
and 3
rd
indicators on
the control panel will light up, indicating that NLJD has been powered on. One yellow LED
should be lightning on the antenna unit (a circle scale of the probing signal power indicator).
Its initial position corresponds to the maximum power of the probing signal in the automatic
mode. Here the probing signal transmitter is off (it is turned on after pressing PWR button
only). The 2
nd
and 3
rd
harmonics indicators should not light (flashing of the first LEDs of the
2
nd
and 3
rd
scales is permitted). Maximum power level can be changed using the power control
buttons of the transmitter (Fig.5).
6.3
. Turn the probing signal transmitter on pressing PWR button. This will switch on the
transmitter pulse mode and the automatic mode of signal power control. The radiated signal
power will change depending on a signal level at the 2
nd
harmonic receiver output. In the given
mode acoustic information (clicks) of the 2
nd
harmonic response is applied to the loudspeaker
or earphones.
When switching on 3-RD mode by pressing LST on the control unit, the output power of the
transmitter is adjusted automatically depending on a signal level at the 3
rd
harmonic receiver
output. Acoustic information of the 3
rd
harmonic response is applied to the loudspeaker or
earphones.
To switch over to the manual mode of the probing signal power control (MNL indicator lights
up) press one of the power control
buttons when the probing signal transmitter has been turned
on.
Turn the probing signal transmitter off and then turn it on using PWR button for a reverse
switch over.
If it is necessary to tap the 3
rd
harmonic response turn on 3–RD mode using LST button on the
control panel.
During operation in premises with a lot of electronic devices it is normally recommended to
work at decreased power of the probing signal.
The optimum level of the probing signal is reached experimentally.
Press RF button to switch over to the CW mode (CW LED lights) from the pulse mode
(PULSE LED lights) and vice versa.
6.4.
Simultaneous flashing of all indicators on the control panel indicates that the battery is
discharged. In this case turn off the power, untwist a cover at the edge of the arm off, remove a
battery, place it into the container and charge using the charger.
6.5.
If a response signal is to be tapped by earphones, press the corresponding button on the
control panel and turn the receiver on.
Attention:
1) While operating NLJD
constantly monitor battery state charging it in-time (by the
indicators signal). NLJD must be kept with a battery charged.
2) Charging should be done with a charger included into the delivery set only, using of
unauthorized chargers are strongly prohibited.