6
1.3 Technical data
1.3.1 Range of dissolved oxygen concentration (hereafter “DOC”)
measurements at analyzable fluid temperature of 20
С, ppm ...……... from 0 to 10.
The upper limit of DOC measurement range shall be governed by the
analyzable fluid temperature and is shown in Table 1.2.
Table 1.2
t,
C
0
5
10
15
20
25
30
35
40
45
50
DOC,
ppm
17.45 15.29 13.48 12.10 10.00 9.85 8.98 8.30 7.69 7.12 6.59
1.3.2 The range of analyzer allowable basic absolute accuracy when
measuring DOC at analyzable fluid temperature of (20.0 ± 0.2)
С and ambient air
temperature of (20 ± 5)
С, ppm ……………………….……….…… ± (0.003+0.04
С
),
where
С
hereinafter is DOC measured value in ppm.
1.3.3 The range of analyzer allowable complementary absolute accuracy
when measuring DOC governed by changes in analyzable fluid temperature per
each ± 5
С deviation from normal temperature (20.0 ± 0.2)
С within the operating
temperature range from 0 to plus 50
°С, ppm …………...….……………… ± 0.012
C
.
1.3.4 The range of analyzer allowable complementary absolute accuracy
when measuring DOC governed by changes in analyzable fluid temperature per
each ±10 °С deviation from normal temperature (20.0 ± 0.2)
С within the operating
temperature range from plus 1 to plus 50
°С, ppm ..................... ±(0.002 + 0.002
C
).
1.3.5 The range of analyzer allowable absolute accuracy when measuring
DOC at analyzable fluid temperature coincident with calibration temperature lying
within the temperature range from plus 15 to plus 35
С and at ambient air
temperature of (20 ± 5)
С, ppm ..…………………………………. ± (0.003 + 0.04
C
).
1.3.6 Measuring range of analyzable fluid temperature,
С ……. 0 to plus 50.
1.3.7 The range of analyzer allowable basic absolute accuracy on measuring
analyzable fluid temperature at ambient air temperature of (20 ± 5)
С,
С ….. ± 0.3.
1.3.8 The range of analyzer allowable complementary absolute accuracy on
measuring analyzable fluid temperature governed by changes in ambient air
temperature per each ± 10
С deviation from normal (20 ± 5)
С temperature within
the operating range from plus 1 to plus 50
С,
С ...…….…..…………………. ± 0.1.
1.3.9 Maximum allowable analyzer reading setting time
t
0.9
on DOC
measurements, min ……….…………………………………………………….….…... 2.
1.3.10 Maximum allowable analyzer reading setting time
t
у
on DOC
measurements, min ………………………………………………………………….... 30.
1.3.11 Maximum allowable analyzer reading setting time
t
0.9
on measuring
analyzable fluid temperature, min ……...………………………………………..……. 1.
1.3.12 Maximum allowable analyzer reading setting time
t
у
on measuring
analyzable fluid temperature, min ………..…………………………………….…….. 3.
