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DR/2400
Method 10171
Scope and Application:
* Patent pending
Tips and Techniques
• For more accurate results, determine a reagent blank value for each new lot of reagent. Follow the procedure using deionized
water in place of the sample. Subtract the reagent blank value from the final results or perform a reagent blank adjust
instrument manual for more information on Running a Reagent Blank.
• Wipe the outside of sample cells before each insertion into the instrument cell holder. Use a damp towel followed by a dry one to
remove fingerprints or other marks.
• Install the Multi-pathlength Cell into the adapter oriented for the short (1-cm) pathlength (the long pathlength is perpendicular to
the front of the instrument).
DR/2400 Multi-Path Cell
Hach Programs
1.
Touch
.
Hach Programs
Select program
.
66 Monochlor. LR
Touch
.
Start
Chloramine (Mono)_MP_Low_MCF_Eng_2400.fm
Chloraminated drinking water and chlorinated wastewater
2.
Fill the
multi-pathlength cell to
the 10-mL line with
sample.
Chloramine (Mono)
LR (0.04–4.50 mg/L Cl
3.
Install the adapter.
Wipe the cell. Place the
cell into the cell adapter
and orient it for the short
pathlength.
Note: See Section 2.6.1
Installing Sample Cell Adapters
in the Instrument Manual for
adapter installation details.
Indophenol Method*
.
See the
Method 10171
Zero
4.
Touch
.
Zero
The display will show:
0.00 mg/L Cl
2
Chloramine (Mono)
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