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Topic: Gas analyzer calibrations  (Read 3479 times)

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Offline panipacha

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Gas analyzer calibrations
« on: July 11, 2013, 07:00:11 AM »
Hello! I am using a GFM400 gas analyzer and it gives me 3 calibration options.
Reset factory delta
0.0%
and XX.X% span calibration

I am confused about what these options mean, we have contacted the company and waiting to hear back but may be one of you has used this or similar equipment and can help explain? I figured this would be helpful for future references as well!

Thanks!
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Offline Stepan

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Re: Gas analyzer calibrations
« Reply #1 on: July 11, 2013, 06:35:34 PM »
You set o.o% using zero air or nitrogen. Then, you calibrate using gas of known XX.X% concentration.
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Offline curiouscat

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Re: Gas analyzer calibrations
« Reply #2 on: August 04, 2013, 09:33:37 AM »
Which gas?
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Offline JGK

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Re: Gas analyzer calibrations
« Reply #3 on: August 06, 2013, 06:08:41 PM »
Quote from: curiouscat on August 04, 2013, 09:33:37 AM
Which gas?

I would suspect it would be the one you expect to analyze  ::)
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Offline curiouscat

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Re: Gas analyzer calibrations
« Reply #4 on: August 07, 2013, 12:35:16 AM »
Quote from: JGK on August 06, 2013, 06:08:41 PM
Quote from: curiouscat on August 04, 2013, 09:33:37 AM
Which gas?

I would suspect it would be the one you expect to analyze  ::)

I can offhand think of a need to report concentrations of O2, H2, Methane, and CO.

Sorry, not obvious to me.
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Offline JGK

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Re: Gas analyzer calibrations
« Reply #5 on: August 07, 2013, 05:20:52 PM »
Quote from: curiouscat on August 07, 2013, 12:35:16 AM
Quote from: JGK on August 06, 2013, 06:08:41 PM
Quote from: curiouscat on August 04, 2013, 09:33:37 AM
Which gas?

I would suspect it would be the one you expect to analyze  ::)

I can offhand think of a need to report concentrations of O2, H2, Methane, and CO.

Sorry, not obvious to me.

Separately or as a mixture?
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Experience is something you don't get until just after you need it.
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