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Standby and On-Demand Modes
Overview
As the power market has shifted from coal to gas plants, so
have the power plant needs changed from base load to
peaker plant operations. This shift has caused a need for
analyzers to work from a continuous mode to an on-demand
mode. Thermo Scientific identified this requirement as an
enhancement feature and has introduced this into the new
Orion 2210AM Ammonia Analyzer.
The Orion 2210AM Ammonia Analyzer is equipped with two
modes of operations:
1. AUTO RESTART mode (default)
2. MANUAL mode
The mode of operation may be selected by the user by
pressing the MENU key:
➔
➔
SET UP
+ (pg2)
ANALYSIS PARAMETERS
AUTO RESTART allows automatic restart of the sample
measurement mode (same as pressing the RUN key) after 30
minutes wait/idle time. The unit will resume running analyses
per the selected frequency (default 15 min).
In MANUAL mode, the system will wait for the operator
command via keypad (RUN key) or external control to start/
resume analyses per the selected measurement frequency. If
no command is received, the system will switch to stand-by
after 1 hour wait/idle time.During automatic analysis, if the
system detects a SAMPLE LOSS for more than one hour, it
will switch to stand-by house-keeping. When the sample
recovers, it will switch back to RUN mode after waiting for
1 minute to allow for fresh sample to flush the sample
chamber.
STAND-BY: In stand-by the system will execute periodic
house-keeping routines.
Every one hour, the fluids in reagents 1, 2, standard and
sample lines are moved back and forth. Every 6 hours, the
system primes all the reagents lines with 1 mL each and then
flushes the reaction cell with either 2.5 mL of standard or if
sample is present, the system executes a clean cycle.
Fluids consumption while unit is left in Stand-by:
4 mL of each reagent per day.
10 mL of standard** per day (with no sample). If sample is
present, the system will run four clean cycles per day and
will not consume any standard.
Orion 2210AM Ammonia Analyzer
** Note that in stand-by mode, the standard is used only to
flush the cell. Distilled water may be substituted instead of
ammonia standard, or a time to refill the standard bottle if unit
is kept in stand-by.
CAUTION
OPTIONAL MENU setting:
(Please consult factory before modifying default setup).
An additional sub-menu selection for the Stand-by cleaner
solution is provided. To access, press:
➔
MODE
➔
MENU
➔
+ (pg 2)
STDBY CLEANER SOURCE: SMP/STD (default)
STDBY
CLEANER
SOURCE
Make sure reagents and standard
bottles have enough fluids to maintain
wet lines when the analyzer is kept in
stand-by.
➔
➔
SETUP
+ (pg 2)
CLEANER PARAMETERS
SMP/STD: (default) When selected, the
system will use sample if present or in
case of sample loss will revert to standard
for the periodic flushing of the reaction
cell.
SAMPLE: The system will use sample
only. In case of NO sample (sample loss)
or sensor not assigned the daily priming
and flush of the cell is NOT executed. The
system will force a PRIME ALL sequence
when analysis is resumed.
STANDARD: System uses only the
standard for flushing the cell in stand-by.
Standby and On-Demand Modes
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