8 Operation
38
B40IB006EN-D
8.4 Operation using Various Gases
(except air)
The HTK 1200N is made of chemically very resis-
tant materials and can be also operated using vari-
ous gases (preferably inert gas). Refer to
for general comments on the operation and to
for further information on the gas supply.
NOTICE
Risk of damage
Check and replace the gas hoses regularly!
Before applying aggressive gases, make sure
that the materials in the HTK 1200N are resistant
to these gases! Refer to
It is the responsibility of the customer to provide
all the set-up (tubings, valves,..) necessary for
proper work with the HTK 1200N. This implies
that the local safety regulations especially for
work at elevated temperatures need to be ful-
filled.
Make sure that all fittings are tight and mounted
properly and an appropriate exhaust hose is
connected to the safety valve's outlet.
Do NOT work with poisonous, aggressive or
explosive gases.
At the surface of the Kanthal heater an oxide
layer is formed which protects the wire.
After work in vacuum or inert gas, it is recom-
mended to regularly regenerate this oxide layer
by simply heating the HTK 1200N up to 1000 °C
in air. This will extend the life time of the heater
considerably.
