Hach BioTector B3500s, User Manual

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2. Start. This function starts the BioTector. When BioTector is started, the multi-stream operation sequence (if
programmed) is reset. BioTector performs Ozone Purge, Pressure/Flow Test, Reactor Purge and Analyzer
Purge sequences automatically before starting its analysis.
•
Ozone Purge sequence purges any residual ozone through the ozone destructor.
•
Pressure/Flow Test sequence confirm that there is no gas leak and there is no gas flow
restriction in the BioTector.
•
Reactor Purge sequence purges any liquid from the reactor through the Reactor Valve.
•
Analyzer Purge sequence purges any CO
2
gas from the CO
2
Analyzer through the Exhaust
Valve.
An “*” is displayed to let the operator know the function has been activated. If there is a fault in the system,
it will not be possible to start the analyzer until the fault has been rectified.
3. Finish & Stop. When this function is activated from the keyboard, the BioTector stops as soon as its
present reaction is completed. An “*” is displayed to let the operator know the function has been activated.
4. Emergency Stop. When this function is activated the BioTector cancels the execution of the present
reaction and quickly stops operation after the Ozone Purge, Reactor Purge and CO
2
Analyzer Purge
sequences. An “*” is displayed to let the operator know the function has been activated. The Emergency
Stop has highest priority, and always overrules the “Finish & Stop” function.
Quick Startup Function: During maintenance, system testing etc. it may be
necessary to quickly start and stop the BioTector to check various parameters.
Pressing the ENTER key for the “Start”, when the RIGHT ARROW key is also
pressed, bypasses the Pressure/Flow Test sequence, ensuring a quick startup.
When the quick startup function
is used, system will log a “28_NO PRESSURE
TEST” warning in the fault archive and will start operation. The same warning will
also be logged, when the BioTector is started from the Reagents Setup, Manual
Program and Calibration menus using this function.