Teledyne 6650 - Fluorescence Probe - Oil in Water analysis system - Manual (Page 40)

Appendix Model 6650
32 Teledyne Analytical Instruments
7) During the application engineering process there is no need
to adjust the 4 mA, 20 mA or display settings.
A-1.2 Determination of the Probe/Transmitter
Fluorescence in a Non-Fluorescing Liquid:
1) Prepare the measurement area to be used for liquid testing.
a) For lab analysis a wide mouth amber bottle, which has
been wrapped with tape works as a measurement vessel.
The cap of the bottle needs to be equipped with a feed
through that will hold the probe. (Use P/N 53FCAL
calibration bottle/ fitting).
b) In the pilot system, mount the fluorescence probe in the
monitoring location using the appropriate connections.
c) For both installations it is imperative that there is no stray
light in the system and the probe is in complete darkness.
2) If the Fluorometer is on, turn off the unit. Remove the protective
cap from the probe tip and mount the probe in the testing
location, which has been filled with a non-fluorescing material
with solution characteristics as close to the process background
as possible. It is critical that the solution is completely non-
fluorescing, so that only the refractive index difference between
air and liquid sample may alter the fluorescence level. Ultra pure
water, RO water or DI water are probably good choices for the
test material.
3) Power-up the unit and wait about 5 minutes. The power down
does not affect the initialization settings.
4) After lamp stabilization, the REF DET LED should have a
steady green output. The MSR DET LED should have either a
solid green or flashing green output. If the indicators are non-
green, refer to the Diagnostics section in Section 5.
5) Record the fluorescence level on the display
6) Insert the span filter.
a) Wait 2 minutes for the output to stabilize
b) Record the fluorescence level due to span filter insertion.
c) Remove the span filter.