Misty Electronic Blindmask
User’s Manual
Version 1.2 | 19/04/19
Page 14
Frequently asked questions
This section deals with the most common malfunctions and/or errors and possible solutions. If you have
any doubts, please feel free to contact LION.
Problem
Possible solution
The Student Units do not respond to the
Instructor Unit
Check whether all the units are switched on and
set to the same group setting.
The Student Unit provides a view that is
completely or partially obstructed, even after the
panic button has been activated or the Instructor
Unit has been switched off.
Check to make sure that the Student Unit is
switched on and that the battery is sufficiently
charged. Charge the unit and try again. If the
problem persists, contact LION.
The Instructor Unit no longer responds to the
controls.
This may happen if the Instructor Unit was
previously outside the range of the Student Unit.
Bring the two units within range of each other,
and briefly activate the on/off switch. If this does
not help, switch the unit off completely and
switch it on again.
If you are not able to switch the unit off, connect
it to the battery charger for 30 seconds,
disconnect it, and then switch the Instructor Unit
on again.
Walkie-talkies are also used during the training.
The Instructor Unit reports a panic alarm, but
none of the students has activated the panic
button.
The Misty system works on the same frequency
range as many walkie-talkies (430
– 440 MHz,
70cm wavelength band).
If a walkie-talkie is used near the Instructor or
Student Unit, the system may act unpredictably
and false alarms may result.
If a student is using a walkie-talkie that is
causing the malfunction, make sure that the
walkie-talkie is kept as far away as possible from
the Student Unit. If the walkie-talkie and the
Student Unit are both attached to the carrying
belt, make sure that the walkie-talkie is on the
other side of the waist from the Student Unit.
Is the instructor is using a walkie-talkie that is
causing the malfunction, make sure that the
Instructor Unit is kept as far away as possible
from the walkie-talkie when the latter is in use.
A distance of circa 60 cm is generally enough to
resolve the interference. However, this depends
very much on the transmitting power of the
walkie-talkie.
