Calibrating the Permeant Sensor
OX-TRAN Model 2/22 Operator’s Manual
G-2
Revision R
MOCON, Inc.
Adjustment of the permeant (Coulox) sensor is a two step process. First, a film sample with a known
transmission rate must be tested. Refer to the “Permeant Sensor Adjustment Test Setup” in this chapter for
information on setting up a film test. The data from the test can then be used to adjust the permeant sensor.
After suitable data is available the “OTR Adjustment” screens can be used to create and assign a Permeant
Sensor calibration record. Refer to the Instrument Help System for more information on creating a Permeant
Sensor calibration record.
After a Permeant Sensor calibration record has been created and saved it can be viewed, assigned,
inactivated or deleted using the “OTR Adjustment” screens. Refer to the Instrument Help System for more
information on using the “OTR Adjustment” screens.
Permeant Sensor Adjustment Test Setup
To calibrate an instrument to a standard reference film or a certified film use the following procedure:
NOTE:
Mocon has available Certified NIST Films that cover the usual testing range. Call MOCON in
the USA at (763) 493-6370 for more information.
NOTE:
Mocon Certified NIST Films, if not damaged, should last for a year. Do not use the film if it is
wrinkled, punctured or contaminated with grease or fingerprints.
NOTE:
Certified films should be stored in a manner that will keep them clean and free from wrinkles.
MOCON Certified NIST traceable films should be stored in the provided case.
NOTE:
MOCON is not responsible for problems resulting from improper calibration or use of an
inadequate transmission rate reference material.
1.
Select a Certified Film that most closely approximates the transmission rate of the film
samples you will be testing.
2.
Unclamp and remove the Test Cell from the instrument.
3.
Mount the Certified Film (or other reference material) in the Test Cell. For information on
mounting films see “Mounting a Sample in the Test Cell” on page 5-6.
4.
Replace the test cell and clamp it in place. For information on installing and clamping the
Test Cell see “Loading and Unloading the Test Cell” on page 5-7.