 2002 by ELTRA GmbH Germany – January 2002 – Service Manual OH 900 / ON 900 / ONH 2000
2.9-2
Procedure
1 ) Analyse the high standard
2 ) Note the result ( by hand or on the printer )
3 ) < Cal > < 1 > < Channel Number >
4 ) < Standard Value > < Enter >
5 ) < Result > < Enter >
6 ) Analyse the low standard
7 ) If the result ( from 6 ) is too low, then the linearity factor should be higher.
8 ) If the result ( from 6 ) is too high, then the linearity factor should be lower.
9 ) < Menu > < . > < Channel Number >
10 ) < New Factor > < Enter >
11 ) < Nr > < New Factor > < Enter >
12 ) Repeat from # 1 )
Approximate standard samples for linearization and calibration:
Channel 1 : Oxygen ( low ) Linearization factor: approximate value 23000
Concentration: 40 ppm O Sample weight: 1000 mg
Concentration: 200 ppm O Sample weight: 1000 mg
For successive calibration, 200 ppm O is used as the standard.
Channel 2 : Oxygen Linearization factor: approximate value 21000
Concentration: 200 ppm O Sample weight: 1000 mg
Concentration: 1000 ppm O Sample weight: 1000 mg
For successive calibration, 1000 ppm O is used as the standard.
When the true factor is closely approaching, by using the above methods, an exact
determination can be derived in the following way: Rather than only one analysis, three
separate analyses are performed. Then the arithmetic average is taken.
1 ) Analyse the high standard three times.
2 ) Note the arithmetic average.
3 ) < Cal > < 1 > < Channel Number >
4 ) < Set Value > < Enter >
5 ) < Result > < Enter >
6 ) Analyse the low standard three times.
7 ) If the arithmetic average ( from 6 ) is too low, then the factor should be higher.
8 ) If the arithmetic average ( from 6 ) is too high, then the factor should be lower.
9 ) < Menu > < . > < Channel Number >
10 ) < New Factor > < Enter >
11 ) < Nr > < New Factor > < Enter >
12 ) Repeat from # 1 )
To Next Page
Loading...
Need help?
General
