Permeation Tubes; Calibration Gas Traceability; Data Recording Devices - Teledyne 100E Instruction Manual

Calibration Procedures
measurement range is 500 ppb, the span gas should have an SO
450 ppb.
We strongly recommend that span calibration is carried out with SO
it is possible to use a permeation tube such as that included in the IZS valve option.
Span gases should be certified to a specific accuracy to ensure accurate calibration of the
analyzer. Typical gas accuracy for SO
in nitrogen.

7.1.4. Permeation Tubes

T-API offers an IZS option operating with permeation devices. The accuracy of these
devices is about ±5%. Whereas this may be sufficient for quick, daily calibration checks,
we recommend to use certified SO
Applications requiring US-EPA equivalency do not allow permeation devices to
be used as sources of span gas for calibration of the analyzer.

7.1.5. Calibration Gas Traceability

All equipment used to produce calibration gases should be verified against standards of
the National Institute for Standards and Technology (NIST). To ensure NIST traceability,
we recommend to acquire cylinders of working gas that are certified to be traceable to
NIST Standard Reference Materials (SRM). These are available from a variety of
commercial sources.
Table 7-1:

7.1.6. Data Recording Devices

A strip chart recorder, data acquisition system or digital data acquisition system should
be used to record data from the M100E's serial or analog outputs. If analog readings are
used, the response of the recording system should be checked against a NIST traceable
voltage source or meter. Data recording device should be capable of bi-polar operation so
that negative readings can be recorded. For electronic data recording, the M100E
provides an internal data acquisition system (iDAS), which is described in detail in
Section 6.10.
128
2
gases for accurate calibration.
2
NIST-SRM's Available for Traceability of SO
4
NIST-SRM
1693a Sulfur dioxide in N
1694a Sulfur dioxide in N
1661a Sulfur dioxide in N
gases is 1 or 2 %. SO
Note
Type Nominal Concentration
2
2
2
Model 100E Instruction Manual
concentration of about
2
span gas, although
2
standards should be mixed
2
Calibration Gases
2
50 ppm
100 ppm
500 ppm
045150102 Rev XB1