Calibration Procedures; Calibration Preparations; Required Equipment, Supplies, And Expendables; Zero Air - Teledyne 200E Instruction Manual

Model 200E Instruction Manual

7. CALIBRATION PROCEDURES

This chapter describes calibration procedures for the M200E. All of the methods described
here can be initiated and controlled through the front panel or the COM ports.
If you are using the M200E for US-EPA controlled monitoring, see Chapter 8 for

7.1. Calibration Preparations

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 (Section 6.5 for instructions).

7.1.1. Required Equipment, Supplies, and Expendables

Calibration of the Model 200E analyzer requires a certain amount of equipment and
supplies. These include, but are not limited to, the following:
• Zero-air source (defined in Section 3.3.2).
• Span gas source (defined in Section 3.3.1).
• Gas lines - all gas line materials should be stainless steel or Teflon-type (PTFE or
FEP). High concentration NO gas transported over long distances may require
stainless steel to avoid oxidation of NO with O
• 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.

7.1.2. Zero Air

Zero air is similar in chemical composition to the Earth's atmosphere but scrubbed of all
components that might affect the analyzer's readings. For NO
should be devoid of NO
moderate amounts of NH
Devices such as the API Model 701 zero air generator that condition ambient air by drying
and removal of pollutants are available. We recommend this type of device for generating
zero air. Please contact our sales department for more information on this.

7.1.3. Span Gas Standards

As explained in detail in Section 3.3.1, span gas is specifically mixed to match the chemical
composition of the gas being measured at about 80% of the desired full measurement
range. For example, if the measurement range is 500 ppb, the span gas should have an NO
concentration of about 400 ppb.
044100102 Rev A
information on the EPA calibration protocol.
and large amounts of CO
X
can be removed using a sample gas conditioner (Section 5.8).
3
NOTE
diffusing into the tubing.
2
measuring devices, zero air
X
, NH and water vapor. Water vapor and
2 3
Calibration Procedures
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