HITECH
INSTRUMENTS

technical datasheet

A member of the MTL Instruments Group

K1550 series Katharometers
Thermal conductivity analysers for binary gas mixtures

•t Measured gases include: H2, He, Ar,
CO2, SF6 Kr, Ne and Xe
•t Proven technology from the
katharometer experts
•t Hazardous area options
•t Corrosive gas sensor options
•t Non-depleting remote sensor
•t Fixed and variable compensation
options

Applications
•t Hydrogen analysis
•t Syngas
•t Gasification
•t Helium recovery
•t Gas mixing
•t Nitriding furnaces
•t SF6 in switchgear
•t Fuel cell research

The K1550 series analysers are ideal for
measuring the % level of one gas in a binary
or pseudo-binary mixture. For example, air is
composed of many gases but in known, fixed
ratios, therefore hydrogen in air is a pseudobinary mixture and can be measured with the
K1550.

Different sample conditioning systems
are available, standard or bespoke, according
to the process conditions. For corrosive gases
a variety of sensor assemblies and fittings are
available to suit the specific gas. Hitech are
prepared to recommend complete systems on
receipt of full gas stream specifications.

Hydrogen, helium, dissociated ammonia,
sulphur hexafluoride and noble gases
such as krypton and xenon are all well suited
to this technique. In particular, katharometers
are well suited to gases that have no dedicated
sensor and therefore provide cost effective
analysis solutions.

For hazardous area applications the
sensor may be mounted remotely in the
hazardous area and connected through an
MTL zener barrier to the electronics unit in
a safe area. Alternatively, the electronics unit
can be supplied in an EExd enclosure, with a
remote keypad for non-intrusive calibration,
for full hazardous area use.

A compensation input is available as an
option, either fixed or variable, via a 4-20
mA input. This extends the capability of
the analyser to measure in more complex
mixtures. The KG1550 series also features an
integral oxygen sensor.
All versions are available with a 0 – 100%
range. 0 – 20% and 80 – 100% ranges are
also available, depending on the measured
gas and the background. Hydrogen analysers
can also be supplied with a 0 – 5% range.
Multi-range instruments are sometimes
available on request.

500-0010 Rev4 261010

www.hitech-inst.co.uk

hitechsales@cooperindustries.com