MAHLE RTI NTF-230 - Manual (Page 9)

8
NitroPRO Nitrogen Purity Tester
RTI P/N: 355 80022 00
TESTING NITROGEN PURITY
An optional item available for the NTF-230 is the NitroPRO Nitrogen Purity Tester.
The NitroPRO Nitrogen Purity Tester can be used to determine the percent of nitrogen produced by the
NTF-230 by connecting to the Test Port (see picture below). It can also be used to determine the
percent of nitrogen in the tires after performing a service.
The NTF-230 is factory preset at 95% nitrogen purity and can be set as high as 98%. Contact RTI
Technical Support for assistance with nitrogen purity setting adjustment: 1-800-468-2321 x 1.
HELPFUL HINT – PURITY TESTING
When using the Nitrogen Tester to measure nitrogen purity in a tire and in the tank, you
can minimize the pressure loss, and corresponding refill requirements, by removing the
Tester from the valve stem after a sample has been obtained.
You will notice that the reading continues to climb after the Tester has been removed;
this a function of the response time of the internal sensor. Once the rate of change in the
reading begins to slow down or stabilize, reapply the Tester to the valve stem to obtain
another sample.
This method is particularly effective at the beginning of the test procedure, when large
changes in nitrogen purity readings quickly occur.
Even if you follow this method, you should ALWAYS RECHECK THE TIRE PRESSURE
when purity testing is complete and refill tire with nitrogen as necessary.