Getting Started
Model 100E Instruction Manual
32
045150102 Rev XB1
In applications where the sample gas is received from a pressurized manifold, a vent
must be provided to equalize the sample gas with ambient atmospheric pressure before
it enters the analyzer. The vented gas needs to be routed outside the immediate area or
shelter surrounding the instrument.
CAUTION
Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-Hg
above ambient pressure and ideally should equal ambient atmospheric
pressure.
Attach zero air and span gas supply lines as appropriate (5s 3-5 & 3.7). For this type of
analyzer, zero air and span gas are defined as follows:
Zero air and span gas inlets should supply their respective gases in excess of the 700
cc
3
/min demand of the analyzer. Supply and vent lines should be of sufficient length and
diameter to prevent back diffusion and pressure effects.
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 the case of SO
2
,
measurements made with the T-API Model 100E UV Fluorescence SO
2
Analyzer it is
recommended that you use a span gas with a SO
2
concentration equal to 90% of the
measurement range for your application.
EXAMPLE: If the application is to measure between 0 ppm and 500 ppb, an appropriate
span gas concentration would be 450 ppb SO
2
in N
2
.
Cylinders of calibrated SO
2
gas traceable to NIST-Standard Reference Material specifications
(also referred to as SRM’s or EPA protocol calibration gases) are commercially available.
Table 3-5 lists specific NIST-SRM reference numbers for various concentrations of SO
2
.
Some applications, such as EPA monitoring, require a multipoint calibration procedure
where span gases of different concentrations are needed. We recommend using a bottle
of calibrated SO
2
gas of higher concentration in conjunction with a gas dilution calibrator
such as a T-API Model 700. This type of calibrator precisely mixes a high concentration
gas from with zero air (both supplied externally) to accurately produce span gas of the
correct concentration. Linearity profiles can be automated with this model and run
unattended over night.
Zero Air
A gas that is similar in chemical composition to the earth’s atmosphere but without the
gas being measured by the analyzer, in this caseSO
2
. If your analyzer is equipped with
an IZS or external zero air scrubber option, it is capable of creating zero air.
For analyzers without these options, a zero air generator such as the T-API Model 701
can be used.
.
Summary of Contents for 100E
Page 2: ...Model 100E Instruction Manual ...
Page 4: ...Model 100E Instruction Manual ii 045150102 Rev XB1 ...
Page 12: ...Model 100E Instruction Manual x 045150102 Rev XB1 ...
Page 20: ...M100E Documentation Model 100E Instruction Manual 18 045150102 Rev XB1 User Notes ...
Page 26: ...Specifications Approvals and Warranty Model 100E Instruction Manual 24 045150102 Rev XB1 ...
Page 46: ...Getting Started Model 100E Instruction Manual 44 045150102 Rev XB1 User Notes ...
Page 128: ...Operating Instructions Model 100E Instruction Manual 126 045150102 Rev XB1 User Notes ...
Page 156: ...EPA Protocol Calibration Model 100E Instruction Manual 154 045150102 Rev XB1 ...
