LaMotte DC1600 Colorimeter User Manual

Page 64

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PROCEDURE

Rinse a clean colorimeter tube (0967) with sample water. Fill to the 10 mL line with sample. This tube is the BLANK.

Select setting 2 on “Select Wavelength” knob and press “30 Second Read” button.

Insert tube into colorimeter chamber and adjust to 100%T with “Set Blank” knob. This is the 100%T blank.

Remove BLANK from colorimeter and insert SAMPLE tube into colorimeter chamber. Record %T as soon as reading

stabilizes.

Consult calibration chart to determine dissolved oxygen concentration in parts per million (ppm).

DC1600 DISSOLVED OXYGEN CALIBRATION CHART

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

4.3

4.4

4.5

4.6

4.7

4.9

5.0

5.2

5.3

5.5

5.6

5.8

6.0

6.1

6.3

6.5

6.7

7.0

7.2

7.4

7.7

8.0

8.3

8.6

8.9

9.3

9.8

10.2

10.8

11.4

12.1

13.0