Alcatel-Lucent OS9-GNI-U24 Logic card

Two UV1A or UV2 Scanners may be installed on the burner if it is necessary to view two areas to obtain reliable detection of the flame. They should be wired in parallel. Only one repetitive selfchecking 45UV5 Scanner may be installed on a burner.To increase scanner sensitivity with UV1A, UV2 Scanners, a quartz lens permits location of the scanner at twice the normal distance. Use l/2" x 1 l/2" pipe nipple between UV1A Scanner and the coupling. Use 3/8" pipe nipple and a l/2" x 3/8" bushing on UV2 installations.

OPERATION — 45UV5 & 55UV5 SELF-CHECKING UV SCANNER 

Self-checking ultra-violet scanners should be used in applications where burner firing operation is continuous or where the burner is on for long periods of time without recycling and UV detection is the best alternative. In addition, ultra-violet self-checking systems are mandatory in some locations. The operation of this type of system consists of maintaining the flame scanning capability at all times while also proving that the ultra-violet tube is firing properly. This is done periodically by mechanically closing off the sight of the UV tube and checking to make sure that the flame signal goes away

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