CIAS Elettronica S.r.l. PYTHAGORAS3, Manual

Page: 77 / 84

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CIAS Elettronica S.r.l. Ed. 1.3
Installation Manual Page 76 of 78 PYTHAGORAS 3
13 MAINTENANCE AND SERVICE
13.1 Fault Finding
In case of false alarms, verify that the parameters set during installation and recorded on the
Commissioning Sheet are still correct and appropriate and that any variations have not
exceeded the stated limits, shown in the “Alignment and Configuration” section (4 and 5).
Fault Possible Cause Possible Solution
Fault Led off Voltage high and/or low Check power supply and battery
voltage
BF Oscillator Fault Tx Replace Tx circuit
MW Oscillator Fault Replace Tx cavity
Tx or Rx faults Replace circuit
Disqualification one or more IR Check IR
Alarm Led off Movement or obstacles in the
protected area Check that the protected area is clear
of obstacles and/or people moving
Barrier mis-aligned Refer to section 4.1.2 points
a,b,c,d,e,f,g,h,i,j and 5.2 5.3 for the
Infrared
Incorrect channel selection plus
infrared alarm Re-acquire channel section 4.1.2 point
j and check infrared alignment
High VRag Heads mis-aligned Refer to section 4.1.2 points
a,b,c,d,e,f,g,h,i,j
Obstacles in the protected area Remove obstacles
Transmitted signal insufficient Check transmitter
Circuit Fault Replace receiver
Microwave Receiver Fault Replace Microwave detector
Tamper Led off Micro switch open Check switch is closed
Tilt switch in wrong position Check position
13.2 MW Service Kit
The service kits comprise the processing circuit and all the microwave parts. Replacement is
very simple.
Changing circuit boards and cavities on either the transmitter or the receiver can change
the orientation of the barrier and therefore it is essential to re-align the barrier after
substitution. Therefore it is necessary to acquire the field signal value and the channel
number as described in section 4.1.2
13.3 IR Service Kit
The Tx and Rx service Kits are composed by 1 electronic module and 2 optical modules
The following is supplied for each of the cited Kits:
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screws for fastening to the aluminium rack,
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two connection wires and relevant connectors for the connection between the optical
module and the electronic module