Thermo Scientific Model 17i Ammonia Analyzer0 pages

Sou en gas ana yzer
a m b ir c et G a s A n a lly z e r
Pro d u c t Spec if ic at io ns

Thermo Scientific Model 17i
Ammonia Analyzer
t

Chemiluminescent gas analyzer

The Thermo Scientific™ Model 17i
Ammonia Analyzer uses the light producing
reaction of nitric oxide (NO) with ozone (O3)
as its basic principle.
•t Measurement of NH3 as well as NO,
NO2, NOx and Nt
•t Replaceable NO2 and NH3 converter
cartridges
•t Unparalleled sensitivity and
selectivity
•t Automatic and manual modes
•t Selectable time constants

The Thermo Scientific Model 17i Ammonia
Analyzer uses the light producing
reaction of nitric oxide (NO) with ozone (O3)
as its basic principle. The instrument has
three modes of operation, NO, NOx and Nt.
Mode 1: While operating in the NO mode,
the sample is mixed with Ozone in the
reaction chamber. This reaction produces a
characteristic luminescence with intensity
proportional to the concentration of NO.
Mode 2: In the NOx mode, the sample is
passed through a molybdenum convertor
which reduces any NO2 in the sample to
NO. This is then transported to the
reaction chamber where the sample is
measured as NOx (NO + NO2).
Mode 3: In the third mode, the Nt sample
is passed through a stainless steel
convertor where both the NO2 and the NH3
are converted to NO. This is then
measured as Nt (NO + NO2 + NH3).

The software subtracts NO from NOx and
NOx from Nt and provides outputs of NO2
and NH3 respectively. The Model 17i analyzer
can output NH3 along with NO,
NO2, NOx, and Nt to the display or
electronic outputs.
This state-of-the-art iSeries gas analyzer
also features:
• Ethernet port
• Flash memory for increased data storage
• Ethernet connectivity for remote access
• Off-site measurement downloads
• Easily programmable short-cut keys
• A large interface screen