Reaction Check - Hach BioTector B3500dw User Manual

8.3.6 Reaction Check

CO2 LEVEL
FAULT TYPE
REACTION COUNT
TIC CHECK
TOC CHECK
TC CHECK
100ppm, AUTO ▪ Due to the organic and inorganic contamination in the BioTector
▪ The second setting (AUTO by default) of CO2 LEVEL defines
▪ BioTector looks for first an increase and then a decrease in the
▪ When CO2 LEVEL is programmed as 0ppm, the reaction check
WARNING ▪ FAULT TYPE determines the type (WARNING or FAULT) of the
▪ When "04_REACTION ERROR" fault occurs, if FAULT TYPE is
3 ▪ REACTION COUNT defines the number of consecutive
7ppm ▪ TIC CHECK (7ppm CO
25ppm ▪ TOC CHECK (25ppm CO
25ppm ▪ In TC and VOC systems, TC CHECK (25ppm CO
reagents, every TOC/TC reaction will generate a small level of
CO from the reagents alone even if there is no sample present.
2
The first setting (100ppm by default) of CO2 LEVEL specifies the
reaction check CO level, which is the minimum expected CO
2
reading in ppm measured by the CO
the reaction check CO level mode. When programmed as
2
AUTO, BioTector automatically sets the CO2 LEVEL to 60% of
the average CO peak reading recorded during the Zero
2
Calibration or Zero Check reactions. If it is set as MAN (Manual),
system uses the fixed programmed CO2 LEVEL value.
CO peak data during the TOC phase (or TC phase depending
2
on ANALYSIS TYPE). If the CO
of the reaction and/or if the CO
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_REACTION
ERROR" warning or a "04_REACTION ERROR" fault
(depending on the FAULT TYPE setting below) and logs into the
fault archive.
function will be disabled. Reaction check function is omitted
during the zero calibration or zero check reactions.
"04_REACTION ERROR" fault.
programmed as WARNING (by default), BioTector keeps
running. If it is programmed as FAULT, BioTector stops.
reactions (3 by default) before a "04_REACTION ERROR" fault
is triggered.
by default) represents the CO
2
point in the TIC phase. If the CO
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 level again. If the TIC level does not drop below
2
the check point at the end of the maximum 300 seconds, a
"50_TIC OVERFLOW" warning is generated.
by default) represents the CO
2
point in the TOC phase. If the CO
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
not drop below the check point at the end of the maximum 300
seconds, a "51_TOC OVERFLOW" warning is generated.
represents the CO check point in the TC phase. If the CO
2
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
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.
Analyzer in a reaction.
2
peak occur at the wrong phase
2
peak is smaller than the
2
2
level is above the programmed
2
level is above the
2
level again. If the TOC level does
2
by default)
2
level again. If
2
2
check
check
2
level
2
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