Lovibond Maxi Direct, Instruction Manual, Page: 36 / 268

34 MaxiDirect_2c 03/2010
1.1 Methods
Chloramine (Mono) and Free
Ammonia
with Vario Powder Pack
and Liquid Reagent
0.04 – 4.50 mg/l Cl
2
The following selection is shown in the display:
for the determination of Monochloramine and free Am-
monia
for the determination of Monochloramine
Select the desired determination with the arrow keys [ ]
and [ ]. Confirm with [ ] key.
6 3
Chloramine (Mono)
>>
with NH4
without NH4
>> with NH4
>> without NH4
Notes:
1. Full colour development – temperature
The reaction periods indicated in the manual refer to a sample temperature between
18° and 20°C. Due to the fact that the reaction period is strongly influenced by sample
temperature, you have to adjust both reaction periods according to the following table:
Sample temperature
in °C
Reaction period in min
5 10
10 8
16 6
20 5
23 2.5
25 2