Super Systems 9210 Series - Manual (Page 59)

M4557 - Model 9210 Nitriding Controller
SSi Manual SERIES 9210-M4557-Nitriding Page 59 of 59
5.0 TECHNICAL INFORMATION
The Nitriding Sample Cell is a device that produces an output that is a function of the thermal conductivity
of the gas surrounding its sensor. Gases differ in their thermal conductivity and the thermal conductivity of
a mixture is approximately the mathematical average of the thermal conductivity and concentration of each
component. Because thermal conductivity is a bulk physical property of the gas its measurement is not
specific for any component. The Model 9210 is programmed in such a way that it assumes the components
are always the same species, e.g. oxygen, nitrogen and carbon dioxide. If a gas mixture containing other
components is introduced into the sample cell it will not produce the correct readings.
6.0 SERVICING
The Nitriding Sample Cell sensor is non-depleting and will last indefinitely if not subjected to misuse. The
sensor can only be replaced by the use of specialist equipment and would have to be returned to Super
Systems or their agent should a replacement be required.
Questions on the analyzer should be directed to Super Systems Inc. It is important that the serial number
or job number are quoted. These numbers may be found on the data label on the rear panel.
Super Systems Inc
7205 Edington Drive
Cincinnati, OH 45249
513-772-0060, 800-666-4330
Fax: 513-772-9466
www.supersystems.com