Hach DR2400 - Chloramine (Mono); LR (0.04-4.50 Mg;L Cl 2 )

DR/2400
Chloramine (Mono)
Chloramine (Mono)_MP_Low_MCF_Eng_2400.fm Page 1 of 6
.
• 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. See the
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).
Chloramine (Mono)
Method 10171
Indophenol Method*
LR (0.04–4.50 mg/L
Cl
2
)
* Patent pending
Scope and Application: Chloraminated drinking water and chlorinated wastewater
1. Touch
Hach Programs.
Select program
66 Monochlor. LR.
Touch
Start.
2. Fill the
multi-pathlength cell to
the 10-mL line with
sample.
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.
4. Touch Zero.
The display will show:
0.00 mg/L Cl
2
Tips and Techniques
DR/2400 Multi-Path Cell Method 10171
Hach Programs
Zero