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

Страница: 51 / 64

MULTIFLAME DF-TV7
OPTICAL FLAME DETECTOR
OPERATING MANUAL
NOSP17662
Revision 03
45
7 Maintenance
The interventions described in this chapter must be performed by competent and
qualified staff. Device performances may be affected if the present instructions are
not respected.
Cartridge unplug or device opening imperatively require power to be OFF.
7.1 Periodic maintenance
We recommend, a biannual check, but this can depend significantly on the operating conditions
of the product and be adapted by the operating company.
However, with regard to the functional safety certification of the device (SIL), an annual check is
a minimum requirement.
7.1.1 Visual inspection
Check detector positioning to be sure that there are no obstacle between the sensor and the
potential source of fire.
7.1.2 Cleaning optical parts
Maintenance of flame detectors mainly relates to keeping the optical surfaces clean (window and
reflector inside surface). In most installations a periodic cleaning is required.
Clean the detector window and the test reflectors, using a soft cloth soaked in a 50/50 mixture
of Ethanol and water.
7.1.3 Flame simulation
Initiate a flame test using the integrated test lamps as described in §0. This can also be achieved
using the LT15 test lamp as described in the LT15 operating Manual. Make sure that the detector
is set in LT15 test mode as described in §6.9.1.2.
This test inhibits the outputs (relays and current loop), so test results are displayed on the TLU, as
well as the alarm LED.