Calibration Procedures Teledyne API T803 CO2/O2 Analyzer Operation Manual
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9.1. BEFORE CALIBRATION

The calibration procedures in this section assume that the range mode, analog
range and units of measure have already been selected for the analyzer. If this
has not been done, please do so before continuing (see Section 5.2 for
instructions).
Note If any problems occur while performing the following calibration
procedures, refer to Section 11 for troubleshooting tips.

9.1.1. REQUIRED EQUIPMENT, SUPPLIES, AND EXPENDABLES

Calibration of the T803 analyzer requires a certain amount of equipment and
supplies. These include, but are not limited to, the following:
Zero-air source.
Span gas source.
Gas lines - All Gas lines should be Stainless Steel, PTFE (Teflon), glass or
electroless nickel.
A recording device such as a strip-chart recorder and/or data logger (optional).
For electronic documentation, the internal data acquisition system can be
used.

9.1.2. CALIBRATION GASES

9.1.2.1. ZERO AIR
A gas that is similar in chemical composition to the earth’s atmosphere but
scrubbed of all components that might affect the analyzer’s readings. Teledyne
API recommends using pure N2 when calibrating the zero point of your CO2 or
O2 sensor except if known interferents are involved (please refer to Section
3.3.2.4).
CAUTION
GENERAL SAFETY HAZARD
DO NOT vent calibration gases into enclosed areas. Rapid release of pure N2 gas into
an enclosed space can displace oxygen, and therefore represents an asphyxiation
hazard. This may happen with few warning symptoms.
9.1.2.2. SPAN GAS
A gas specifically mixed to match the chemical composition of the type of gas
being measured at near full scale of the desired measurement range. In this case,
O2 measurements made with the T803 analyzer, Teledyne API recommends using
21% O2 in N2 when calibrating the span point of the O2 sensor and 16% CO2 in
N2 when calibrating the span point of the CO2 sensor..
07276B DCN6418