Out Of Sample - ABB Navigator 600 Silica User Manual

Navigator 600 Silica
Single-stream

3.3 Out of Sample

If the analyzer detects that the sample is lost (via the out of
sample switch), the analyzer shuts down automatically to
prevent air being drawn into the analyzer and to conserve
reagents.
The automatic shutdown procedure is:
1. The reagent pump stops.
2. Secondary calibration solution is pumped through the
system to purge the reaction coil of reagents and
developed solution.
3. The sample pump, reaction heater and pre-heater are
switched off.
4. The analyzer stays in standby mode until the sample is
restored.
5. When the sample returns and the analyzer has been out of
sample for less than 24 hours a purge sequence is
started.
If the analyzer has been out of sample for more than 24
hours a purge and clean sequence is started.
As soon as the sample returns, the analyzer restarts, entering a
temperature stabilization period followed by a system recovery
before measurement resumes.
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3 Principle of Operation
IM/NAV6S/SS–EN Rev. E