FlowStar2 LB 514
2. HPLC Monitor
27
2.4 Leakage Sensor
FlowStar²
includes a leakage sensor at the lowest point in the counting
chamber and a hose to drain liquid.
The leakage sensor responds to minor amounts of liquid which may es-
cape from a defective measuring cell. In this case, a warning message is
displayed, the scintillator pump stops immediately and an error output sig-
nal will be provided.
Separate the device from mains immediately!
Clean the device thoroughly. Depending on how much liquid has escaped,
you have to observe special precautions! See also chapter 3.5.
Liquids from admixture cells
often contain aggressive substances in ad-
dition to the radioactivity which have to be removed completely as they can
also reach the PMTs. Otherwise, they will continue to have a harmful effect
on the device and may ultimately damage it. For this reason, the device
should be cleaned by B
ERTHOLD
T
ECHNOLOGIES
service personnel.
In
solid cells
the eluate includes radioactive substances which have to be
removed carefully, taking special precautions.
The leaking liquid is guided to a waste container using the outlet connector
located below the measuring cell at the front panel.
To connect the outlet to a waste container use the provided black tubing.
Do not block the emergency outlet at the instrument
.
In order to assure a complete system shutdown connect the
FlowStar² error output signal (see 2.3) to the HPLC system- or pump
shutdown input.
