SIGNAL INTEGRATION
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Sievers TOC-R3 Operation and Maintenance Manual
DLM 95000-01 EN Rev. A 122 © Veolia 2023
• Method — select stream number, carbon species, and/or TNb, if applicable
• Baseline Average Time — the amount of time in seconds that gas flow is moving
through the Detector with no analyte present. This is used for the Detector
baseline calculation. This is visible as a red section in the integration signal. This
is used for the baseline calculation. See Figure 4-20 on page 123
.
• Integration Delay — select the minimum amount of time in seconds before an
Integration starts during a measurement. This is visible as an orange section in
the integration signal. The values collected during this delay are not included in
the baseline measurement. The Integration Delay will continue past the set point
until the Integration Start Threshold criteria is met. If the Integration Start
Threshold criteria is met prior to the integration time expiring, the Integration
Delay will continue for the full amount of time before an integration begins.
See
Figure 4-20 on page 123
.
• Minimum Integration Time — The minimum amount of time in seconds an
integration must run.
• Maximum Integration Time — The maximum amount of time in seconds an
integration can run. If the Integration Stop Threshold criteria is met prior to the
Maximum Integration Time expiring the integration will stop and the replicate is
complete. If the integration Stop Threshold criteria, the integration will continue for
the full amount of time specified. The green section of the integration signal
indicates the sample analyte has reached the Detector and is being measured.
See Figure 4-20 on page 123
.
• Start Threshold — the concentration in ppm above the baseline at which the
Integration starts. See Figure 4-20 on page 123
.
• Stop Threshold — the concentration in ppm above the baseline at which the
integration stops.
This will most often be set the same as the start threshold.
There are cases where the baseline may not return to the original baseline
measurement. This may require increasing the stop threshold to ensure the
integration does not extend beyond where the integration curve achieves a slope
of 0. See Figure 4-20 on page 123
.
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