Preparing the Laser Control Area
The customer is responsible for complying with local laser safety regulations and set up a Class 3B Laser
Control Area for the instrument. Information can be found in the “Setting Up a Laser Control Area” section in
the DXR Raman Instruments Site and Safety Guide.
WARNING
Avoid hazard.
The Class 3B system must be connected to an external remote interlock system that
blocks the laser beam whenever a safety perimeter around the instrument is breached
(when an unauthorized person opens the door, for example).
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This external remote interlock system must be connected when anyone is working in the vicinity of the
Class 3B laser system. Do not attempt to defeat the interlocks on the system.
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The connectors and the laser safety circuit controlling access to the Laser Control Area must be
designed and built by personnel who have been trained in laser safety and in the operation of the
instrument.
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Appropriate area warning signs should be posted at the entryways and within the laser-controlled area.
Below is a suggested method for installing the external remote interlock connectors:
1. Prepare 2 BNC cables and connect to the laser safety circuit within the Laser Control Area.
2. Install a switch across the pins of the connectors on each of the BNC cables. The switch must
accom5 VDC at 10 mA when it is closed.
Note Opening the switch blocks the laser beam, and closing the switch unblocks the beam.
3. Connect the other end of the BNC cables to the interlock connectors on the instrument panel.
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DXR3xi Class 3B Conversion Guide
Preparing the Laser Control Area
