US-BASED GOW-MAC has launched a new process instrument with two models.

The new series 1300 gas analyzers, which cover different analytical ranges, measures trace amounts of nitrogen in helium. Model 1300-A covers 0-2/0-20 ppm and model 1300-B covers 0-20/0-200 ppm.

According to the instrument manufacturer detection is based on spectral emission of helium plasma. High signal gain and improved noise rejection and gives the series 1300 the guaranteed sensitivity of ten parts-per-billion (ppb) for nitrogen.

GOW-MAC said: \\$quot;The Series 1300 is designed as a rugged, low cost, low maintenance, simple to operate analyzer. There are no valves, carrier gas, or radioactive source and the analyzer is maintenance-free.

\\$quot;Other features include on-line, continuous trending of nitrogen concentration with no need for sample injection or separation columns; exposure to atmosphere or high impurity concentrations does not result in damage to the analytical cell; rapid recovery is enhanced by the unique detector design; over-range protection eliminates possibility of false readings caused by high impurity plasma quenching; a non-depleting cell for extended operation provides long life and is maintenance free; patented electro-optical modulation eliminates unwanted noise and drift, generating a modulated signal without the use of a mechanical chopper. \\$quot;

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GOW-MAC launches new process instrument