238 Instruction Manual QuickTOC
®
ultra
IECEx 12E5119
9 Accessories and Options
9.8 Multi Stream Option LAR | PROCESS ANALYSERS AG
9.8 Multi Stream Option
The analyser may measure up to six sample streams in succession. Each sample stream is equipped
with a sample vessel and pump. The parallel switchover means that during the measurement cycle of
one sample the preparation of the next sample starts thus there are no measurement delays.
Notice
For optimal operation, LAR recommends a maximum of four sample streams.
This ensures that calibration of the analyser and rinsing of the injection needle
can be automatic without any additional effort.
Caution
For an analyser with five sample streams, there is only one position left for ca-
libration vessel or rinsing vessel. This position may have to be swapped with
the calibration or rinse vessel depending on requirement. Only one place is
available for one of the vessels.
For an analyser with six sample streams, six sample vessels take up all the
space for vessels (V1-V6). For a calibration, the first vessel must be removed
from the position and be replaced by a calibration vessel. Before a calibration
can be performed, the positioning must be checked on the „Test Run“ display
(Chapter 7.8.3 from page 120). To rinse the injection needle, a sample prepa-
ration vessel must be defined, at best in one in which no repeat measurements
take place and preferably low concentrations are present.
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