New methane (CH 4) analyzer models are suitable for expanded application such as biomas combustion or fuel cell. ![]() ![]() Since clean air is fed into the sample cell in between each batch of sample gas, the cell remains clean which reduces the span drift and keeps long-time stability. Cross-flow modulation method requires no optical adjustments as dual optical path measurement does, because sample gas and reference gas flow into a single measurement cell switching one by one.PG-300 is comparable to large-scale, specialized units in terms of accuracy and offers a high degree of selectivity in analysis. The NOx analysis unit uses a Cross-flow modulation chemiluminescence detection method the SO 2, CO, and CH 4 units use a Cross-flow modulation Non-dispersive infrared (NDIR) absorption method CO 2 unit uses standard Non-dispersive infrared (NDIR) absorption method and the O 2 unit uses zironia method, galvanic method, and paramagnetic method for exclusively in EU area.
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