© CIAS Elettronica S.r.l. Ed. 1.0
Installation Handbook page 47 of 59 MANTA 50 – 80
5. MAINTENANCE AND ASSISTANCE
5.1 Troubleshooting
In case of false alarm, check the parameters recorded during the Installation phase (on
attached Test Sheet), if there are divergences with permitted limits check again the related
points in chapter "Adjustment and Testing (4)"
Defect Possible Cause Possible Solution
Power too high or too low Check the power supply voltage
Temperature too high or too low Check the temperature of the barrier
Tx Oscillator Fault Change the Oscillator
Fault Led ON
Tx or Rx failures Change the Electronic board
Movement or obstacles in the
protected field
Check out that the protected field is
free from obstacles and free from
objects and/or person moving.
Barrier not properly aligned Re do the alignment procedure as
described in points: a,b,c,d,e,f,g,h,i of
charter 4.1.2
Alarm Led ON
Wrong channel selections Do again the Channel acknowledge
procedure as described in point b, j of
charter 4.1.2
Barrier not properly aligned Re do the alignment procedure as
described in points: a,b,c,d,e,f,g,h,i,j
of charter 4.1.2
obstacles in the protected field Remove obstacles
Too low signal transmitted Check the transmitter
Rx circuit fault Change the Rx circuit
High AGC Voltage
Rx MW part fault Change the RX MW part
Micro switch open Check the micro switch position Tamper Led ON
Tilt bulb in wrong position Check the position of the tilt bulb
(Vertical)
BF Oscillator Fault Change the TX circuit Fault Led ON only on TX circuit
MW oscillator Fault Change the MW part
5.2 Maintenance kits
The Maintenance Kits are composed by circuits equipped with microwave cavities, their
substitution is very easy:
The circuit and cavity substitution on boot transmitter and receiver heads doesn’t
changes the heads alignment, and so no new alignment is required
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