Horiba Scientific FluoroMax-4 Operation Manual page 35

® ®
FluoroMax -4 & FluoroMax -4P with USB rev. D (30 Jul 2012)
To insert or remove a sample platform,
1
If a multiple-sample turret is installed, shut off
the system.
2
Remove the four screws on the front of the
sample platform.
3
Slide out the old platform.
4
Slide in the new platform.
5
If the platform has a rotatable turret or magnetic
stirrer, slide the 15-pin connector gently and se-
curely onto the 15-pin receptacle in the sample
compartment.
6
Re-attach the four screws on the front of the
sample platform.
Detectors (5 and 6)
Each FluoroMax
Signal de-
tector
Reference
detector
Both the reference and signal detectors have correction-factor files run for them, to cor-
rect for wavelength dependencies of each optical component. The files are created at
HORIBA Scientific for every instrument, and may be applied to data through
FluorEssence™. See Chapter 8 for more details.
®
-4 contains two detectors:
The standard signal detector is a photon-
counting detector (R928P photomultiplier
tube). The detector's response ranges from
180–850 nm, with dark counts < 1000
counts per second (cps). The linear range
for photon counting is 0–2 million cps.
The working range is up to 2 million cps.
Above 2 million cps, photon-pulse pile-up reduces the signal-to-noise
ratio, and causes the detector to lose its linear response.
The reference detector monitors the xenon lamp,
in order to correct for wavelength- and time-
dependent output of the lamp. This detector is a
UV-enhanced silicon photodiode, which is just
before the sample compartment. It requires no
external bias, and has good response from 190–
980 nm.
2-5
System Description