Technical data

47
“BASE-14” Kit
The “BASE-14” Offline Kit represents the basic
USP/EP compliant ERWEKA offline system for
14 test-stations where the stainless steel (316)
sample withdraw tubes are driven into the me-
dia, to the exact USP/EP sampling height, only
while the sample is withdrawn – not to change
the hydrodynamics constantly.
The “BASE-14” version allows collecting into
glass tubes of 10 ml or 25ml.
The system comprises of:
1.) Fully USP/EP compliant sampling station
with automatic sample withdraw height ad-
justment and 14 stainless steel (316) sam-
ple withdraw tubes
2.) 16-channel peristaltic pump with verder-
prene tubing
3.) FRL 720-2 14-channel “silent” Autosampler
with x/y driven arm in “corrosion reduced
design” for collection of up to 12 sampling
intervals into 10 ml glass tubes or 8 sam-
pling intervals into 25 ml glass tubes as
well as support arm to hold a rack.
4.) Tubing/Connector Kit, Teflon
5.) System pre-configuration
6.) Upgraded DT 1420i series to control the
complete Offline System, incl. alpha-
numeric keypad, graphic LC display and
product memory
Not included: DT 1420 dissolution tester and
collection rack (for glass tubes only)
Operation principle:
The stainless steel (optional Titanium) sample
withdraw tubes are driven into the media (ex-
actly midway between the top of the media and
the top of the rotating Basket or Paddle) only
while the sample is withdrawn – not to change
the hydrodynamic inside the vessel – as de-
scribed in the USP and EP.
Optional the sample withdraw system can be
equipped with electronic temperature sensors
for each vessel to archive media temperature
documentation for each test-station.
The connected pump (16-channel peristaltic
pump) transfers the sample to collect from the
vessel into glass tubes (10ml or 25 ml maxi-
mum capacity) positioned in the rack at the
Autosampler.
For more precise dosing – after collection – the
x/y driven arm moves down to a selected sam-
ple volume level and pumps back the sample
above this level to the dissolution vessel (over-
filling/levelling principle).
To minimize cross-contamination between of
the media of various sampling intervals there’s
an automated tube cleaning routine between
the sampling intervals.
“BASE-14” Offline Kit, 14-channel
16-128-0000
(storage/doses into tubes only)