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9. T400 CALIBRATION PROCEDURES
This section contains a variety of information regarding the various methods for
calibrating a Model T400 Ozone Analyzer as well as other supporting information. For
information on EPA protocol calibration, please refer to Chaoter 10. This section is
organized as follows:
SECTION 9.1 – BEFORE CALIBRATION
This section contains general information you should know before about calibrating the
analyzer.
SECTION 9.2 – BASIC MANUAL CALIBRATION CHECKS AND CALIBRATION OF
THE T400 ANALYZER
This section describes the procedure for checking the calibrating and calibrating the
instrument with no zero/span valves installed or if installed, not operating. It requires
that zero air and span gas is inlet through the SAMPLE port.
Also included are instructions for selecting the reporting range to be calibrated when the
T400 analyzer is set to operate in either the DUAL range or AUTO range modes.
SECTION 9.3 – MANUAL CALIBRATION CHECK AND CALIBRATION WITH VALVE
OPTIONS INSTALLED
This section describes:
The procedure for checking the calibration of the instrument with zero/span
valves or the IZS option installed and operating but controlled manually through
the touchscreen on the Front Panel of the instrument.
The procedure for calibrating of the instrument with zero/span valves and
operating but controlled manually through the touchscreen on the front panel of
the instrument.
Instructions on activating the zero/span valves via the control in contact
closures of the analyzers external digital I/O.
SECTION 9.4 – AUTOMATIC ZERO/SPAN Cal/Check (AutoCal)
This section describes the procedure for using the AutoCal feature of the analyzer to
check or calibrate the instrument. The AutoCal feature requires that either the zero/span
valve option or the internal zero/span (IZS) option be installed and operating.
SECTION 9.5 – O3 PHOTOMETER Electronic Calibration
This section describes how to calibrate inherent electronic offsets that may be affecting
the performance of the T400 analyzer’s internal photometer.
SECTION 9.6 – CALIBRATING THE IZS Option O3 Generator
This section describes how to check the performance of the O
3
generator that is included
in the IZS option (OPT – 50G; see Section 3.6.2) available for the T400 analyzer.
06870C DCN6332