Lamtec F130I, Руководство пользователя

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5 Commissioning
5.2.2 Installation and positioning of the optical flame sensor
Observe the following points when installing and positioning the optical flame sensor:
NOTICE
Mounting location

Ensure that the mounting location is easily accessible. During operation of the combustion
plant, you should have the possibility to check the alignment of the flame monitor.

Ensure that the burner flame is clearly visible in the entire "colour range of the combustion
plant" for the optical flame sensor.
NOTICE
Mounting the device using a holder

If at all possible, mount the optical flame sensor to the burner/boiler viewing opening using
a holder optimised by LAMTEC for use with flame sensors.
The flame sensor is now mounted. Please observe the following instructions about aligning
the optical flame sensor.
5.2.3 Aligning the optical flame sensor
Observe the following points when aligning the optical flame sensor:
• In the axially parallel arrangement, it can be difficult to detect that the flame has gone out.
Avoid aligning the flame sensor in an axially parallel arrangement with the flame.
• The correct positioning (alignment) of the flame sensor is decisive for a high availability
and achievable selecting quality
5.2.4 General information about ionisation flame monitoring
Observe the following items for ionisation flame monitoring:
• The functionally secure monitoring of a gas flame will be achieved when the flame moni-
toring is able to be optimally adapted according to the conditions of the gas-fired genera-
tion plant.
• Take into account that with the ionisation method, the flame and burner are also utilised
as part of the electrical conducting circuit for the formation of an optimal ionisation DC cur-
rent, therefore, it is essential that the boiler and burner be grounded properly.
• Fuel, burner setting and the arrangement of electrodes are crucial for the amount of the
achievable ionisation DC current.
• The ionisation DC current also increases with the heating value of the gas. The require-
ment for the formation of optimal values is provided if "based on the setting of the burner":
– a "rigid" flame arises,
– the burner is operated with a low excess of air so that an optimal combustion arises.