Specifications
PN 718113AF
5
Laser Induced Fluorescence Detection
System Overview — LIF System 
Figure 2 488 nm Laser Module Back Panel
635 nm Laser Module 
IMPORTANT This laser is discontinued and is no longer supported by Beckman Coulter.
The power switch is located on the back panel of the 635 nm laser housing. However, the laser will 
not light up unless the instrument is on, and all doors and interlocks are in place. A red light on the 
front panel of the 635 nm laser module indicates that the laser is on.
Using Other Lasers with the LIF Detector
Laser units other than the Beckman Coulter Laser Modules 488 and 635 can be used with the 
LIF detector, as long as the guidelines below are strictly followed.
 • If you purchased your LIF detector without a Beckman Coulter Laser Module, an Interlock/Fiber 
Optic cable (P/N 360671) will have been provided. The custom interlock connector plugs into 
the LIF Interconnect Module. The fiber optic termination of the cable is the standard SMA 905. 
Your laser unit must be fitted with a fiber launcher which is compatible with this connector.
The two electrical wires in the cable connect to the interlock switches inside the detector and 
instrument. These switches close when it is safe for the laser to come on. These wires must be 










