5. Optical System
92
Instructions for Use for
infinite® 200
No. 30017581 Rev. No. 1.4
2008-07
5.7.2
Luminescence Detection
STOP
Caution
Switch on the instrument at least 15 minutes before starting a
luminescence measurement. Some components need to warm up to
guarantee stable conditions for the measurement.
The
infinite
®
200
luminescence detection system utilizes the single photon
counting measurement technique. This is based on a dedicated luminescence
PMT with appropriate measurement circuitry. This technique is very robust
against noise. It is preferred for measurement of very low light levels.
For best performance it is recommended to use white plates for luminescence
measurements. For details see 6.7 Optimize Luminescence Measurements.
Note
Results of luminescence measurements are always displayed in RLU
(Relative Luminescence Unit). 1 RLU corresponds to 1 count/s.
STOP
Caution
The instrument must be placed in a location away from direct sunlight.
Illumination > 500 lux can negatively influence luminescence
measurements.
