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8.3.6 Reaction Check
CO2 LEVEL 100ppm, AUTO
Due to the organic and inorganic contamination in the BioTector
reagents, every TOC/TC reaction will generate a small level of
CO
2
from the reagents alone even if there is no sample present.
The first setting (100ppm by default) of CO2 LEVEL specifies the
reaction check CO
2
level, which is the minimum expected CO
2
reading in ppm measured by the CO
2
Analyzer in a reaction.
The second setting (AUTO by default) of CO2 LEVEL defines
the reaction check CO
2
level mode. When programmed as
AUTO, BioTector automatically sets the CO2 LEVEL to 60% of
the average CO
2
peak reading recorded during the Zero
Calibration or Zero Check reactions. If it is set as MAN (Manual),
system uses the fixed programmed CO2 LEVEL value.
BioTector looks for first an increase and then a decrease in the
CO
2
peak data during the TOC phase (or TC phase depending
on ANALYSIS TYPE). If the CO
2
peak occur at the wrong phase
of the reaction and/or if the CO
2
peak is smaller than the
expected CO2 LEVEL (100ppm by default) for the number of
consecutive reactions defined by REACTION COUNT below (3
reactions by default), system generates a “04_NO REACTION”
warning or a “04_NO REACTION” fault (depending on the
FAULT TYPE setting below) and logs into the fault archive.
When CO2 LEVEL is programmed as 0ppm, the reaction check
function will be disabled. Reaction check function is omitted
during the zero calibration or zero check reactions.
FAULT TYPE
WARNING
FAULT TYPE determines the type (WARNING or FAULT) of the
“04_NO REACTION” fault.
When “04_NO REACTION” fault occurs, if FAULT TYPE is
programmed as WARNING (by default), BioTector keeps
running. If it is programmed as FAULT, BioTector stops.
REACTION COUNT 3
REACTION COUNT defines the number of consecutive
reactions (3 by default) before a “04_NO REACTION” fault is
triggered.
TIC CHECK 10ppm
TIC CHECK (10ppm CO
2
by default) represents the CO
2
check
point in the TIC phase. If the CO
2
level is above the programmed
check point at the end of the TIC phase, then the system
automatically extends the TIC SPARGE TIME by 1 second and
checks the CO
2
level again. If the TIC level does not drop below
the check point at the end of the maximum 300 seconds, a
“50_TIC OVERFLOW” warning is generated.
TOC CHECK 25ppm
TOC CHECK (25ppm CO
2
by default) represents the CO
2
check
point in the TOC phase. If the CO
2
level is above the
programmed check point at the end of the TOC Oxidation
section of the TOC phase, then the system automatically
extends the TOC SPARGE TIME and TOC OXIDATION time by
1 second and checks the CO
2
level again. If the TOC level does
not drop below the check point at the end of the maximum 300
seconds, a “51_TOC OVERFLOW” warning is generated.
TC CHECK 25ppm
In TC and VOC systems, TC CHECK (25ppm CO
2
by default)
represents the CO
2
check point in the TC phase. If the CO
2
level
is above the programmed check point at the end of the TC
Oxidation section of the TC phase, then the system
automatically extends the TC SPARGE TIME and TC
OXIDATION time by 1 second and checks the CO
2
level again. If
the TC level does not drop below the check point at the end of
the maximum 300 seconds, a “91_TC OVERFLOW” warning is
generated.
Summary of Contents for BioTector B3500C
Page 17: ...Page 17 Software Menu Diagram...
Page 44: ...Page 44 Figure 4 BioTector analysis layout typical TIC TOC system...
Page 46: ...Page 46 Figure 6 BioTector oxygen concentrator layout...
Page 63: ...Page 63...
Page 78: ...Page 78 Section 8 Maintenance Menu Maintenance Menu Diagram...
Page 155: ...Page 155 Section 11 System Replacement and Spare Parts...
Page 163: ...Page 163 ZK Zero check ZM Manually input zero adjust ZS Zero and Span...
