Table of Contents
Advertisement
OX-TRAN Model 2/12 R Operator's Manual
Maintaining the Oxygen Sensor
The only periodic maintenance the Oxygen sensor requires is regular Calibration Accuracy checks. The life
of the Oxygen sensor supplied with your OX-TRAN Model 2/12 R is dependent on the amount of oxygen it
is exposed to. The sensor can be damaged by accidents or by misuse such as continual exposure to
extremely high concentrations of oxygen.
Verifying Oxygen Sensor Performance
Periodic calibration of the Permeant Sensor is recommended. Certified Films are available for this purpose.
The "Permeant Sensor Performance Check" described in Chapter 5 should be performed using an
appropriate Certified Film.
Maximizing Oxygen Sensor Life
The useful life of the Oxygen sensor is determined primarily by the amount of oxygen the sensor is exposed
to. For example frequent testing at 500 cc/(m
frequent testing at 5 cc/(m
following means:
Use a lower oxygen concentration Test Gas to supply the driving force. If 21% O
•
the Test Gas, instead of 100% O
approximately a factor of five.
•
Use a foil mask to reduce the test area. A 5 cm
the sensor by a factor of ten.
Using a Conditioning period. When conditioning time is used the sensor is taken off line for a
•
period of time. This can prolong its useful life of the sensor.
Replacing the Oxygen Sensor
The symptoms of a depleted oxygen sensor are large rapid declines in transmission rate and extremely
'noisy' or non-repeatable test results. When the Oxygen sensor needs to be replaced please contact
MOCON in the USA at (763) 493-6370.
Caution:
Do not attempt to replace the Oxygen sensor. This should only be done by an
authorized MOCON Technical Services Representative.
MOCON, Inc.
• day) will deplete the oxygen sensor much quicker than
2
• day). The amount of oxygen the sensor is exposed to can be reduced by the
2
Revision L
, the oxygen input rate to the sensor will be reduced by
2
2
foil mask will reduce the oxygen input rate to
Maintenance
is used for
2
8-5
Advertisement
Table of Contents
