TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook MultiFlame DF-TV7, Руководство по эксплуатации

Страница: 53 / 64

MULTIFLAME DF-TV7
OPTICAL FLAME DETECTOR
OPERATING MANUAL
NOSP17662
Revision 03
47
Faulty self-test lamp. If the above test succeeds, the sensors are
OK, but the integrated test lamp is probably
faulty. Return the sensor cartridge to the
factory
Detector fault Faulty electronics Replace the detector.
DEFAUT IR OU DEFAUT UV
This particular fault occurs when the transmission of optical
radiation to the detectors is no longer satisfactory.
This defect can appear following an unsatisfactory internal optical self-test and lead the device
fault state. The self-test is carried out every 2 hours and is checked several times in the following
half hour before leading to the fault state.
In most cases, a cleaning of the front window is enough to release the fault within the following
five minutes.
DEFAUT MATERIEL
This type of failure is caused by electronic faults at the level of the detection cartridge or at the
main electronics level (main housing).
This fault can also appear when communication between the cartridge and the transmitter is
damaged, through a damaged link connector, for instance.
Usualy this kind of fault requires a material change.
7.3 Replacing the cartridge
Follow the instruction in §4.4.
7.4 Replacing the complete detector
If the operator needs to replace the complete detector, the easiest way is to take off the main
housing from the base of the detector (for more details, refer to § 4.2.2).
As the base of the detector remains in place, cable glands do not need to be dismantled. If
the detector is not replaced immediately, the “open” base must be protected against
humidity, dust and shocks
No intervention should be performed when the detector is powered.