Lufft CHM 15k Nimbus, Manual

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Technical Description
16 Revision R09, November 2016
neutral-color float glass. Both vision panels are somewhat inclined in keeping
with the Brewster angle. This ensures that laser light will suffer only minimal loss
as it passes through and the vision panels remain in an optimal condition due to
a self-cleaning effect. This effect is supported by the fans which are located on
the back panel of the equipment. The fans cut in at hourly intervals or when
there is rain or snow. The two fans are also intended to remove the heat from
the inner casing space.
For maintenance of the fans, the back wall panel of the CHM 15k has to be
removed.
The outer door provides access to the inner casing shell and the glass panels for
necessary cleaning. The outer and the inner door work on different locking
mechanisms in order to avoid personal injury and to protect the internal compo-
nents against improper acts. Persons who have not undergone any safety brief-
ing shall not open the inner door.
4.2 Functional units in inner casing space
The functional units are:
l
Emitter and receiver module (laser optic module - LOM)
l
Central processing board and related components
l
Laser controller module
l
Power supply 12 - 15 VDC for electronics
l
Power transformator 48 VDC for highly shielded outdoor fan
l
Blower & heater
l
Lightning & overvoltage protection system for power cable, LAN, RS485,
Each functional unit is of modular setup, separately fixed to the inner casing shell
and can be individually retrieved for replacement or necessary service work.