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Installation Instructions ACF-NT, ACF-NT V0309
42/23-571 EN Rev. 5
Safety Tips for Handling the FTIR Spectrometer
Electrical Safety
The FTIR Spectrometer consists of an exposed metal chassis that is connected
directly to earth via a power supply cord and is therefore classified as “Safety
Class I” equipment.
WARNING!
When used to analyze flammable gases, the equipment is subject to
acceptance by the local inspection authorities having jurisdiction.
For continued fire protection use specified line fuse only. Disconnect power
cord before replacing fuse.
To avoid electrical shock, the power cord protective conductor must be
connected to earth.
To avoid electrical shock, do not operate this equipment if it bears any sign
of damage to any portion of its exterior surface.
Do not expose this equipment to any source of excessive moisture.
Do not use this equipment in an explosive atmosphere.
Laser and
High Voltage
Under normal operating conditions, the FTIR spectrometer can be operated in
complete safety (Class 1 Laser Product – see rating plate).
Do not open the spectrometer enclosure during normal operation – no user-
serviceable parts inside.
However, since the instrument contains a laser and uses high voltages (accessible
only when the spectrometer enclosure is open), observe the following warnings.
WARNING!
The enclosure of the spectrometer is to be opened only by authorized ABB
Service Personnel.
Opening the enclosure may result in exposure to laser radiation and high
voltages.
Laser type:
He-Ne Laser Class 3B as per IEC-60825-1
Class 111a as per 21 CFR 1040.10
Output power:
max. 3.2 mW
Wavelength: 632.8
nm
Avoid eye exposure to direct to direct or mirrored laser radiation. It is
recommended to wear laser safety goggles when working on the open
spectrometer.
High voltage is present at the red wire connected to the laser tube inside the
enclosure.
The voltage is approximately 7 kV at startup, and between 1200 V and 1400 V
under normal operating conditions.
Because of the capacitors in the laser power supply, the high voltage may be
present even when the power is off.
