Super Systems 9210 Series User 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