workability:
(01) Directly measure high and low concentration chemical oxygen demand(COD)Direct reading of ammonia nitrogen, total phosphorus, and total nitrogen concentration;
(02) Display the measurement results on the large screen;
(03) One click switching of measurement parameters;
(04) Memory 400 curves, standard curves, no need for adjustment, can be used directly, 400 extended curves can be freely applied under different personnel, different environments, different wastewater and other conditions;
(05) The instrument can automatically calculate the storage curve based on standard samples;
(06) Can accurately store tens of thousands1Measurement data (date, time, absorbance, measurement results);
(07) Print current data and all stored historical data;
(08) The digestion power is automatically adjusted with the number of loads, achieving intelligent constant temperature control and having a delay protection function;
(09) Equipped with a spray proof cover made of fully transparent heat-resistant material to ensure the safety and reliability of the experiment;
(10) Automatic constant temperature reminder,Automatic countdown reminder, the scheduled time can be adjusted and saved freely;
(11) Room temperature~190℃ digestion temperature adjustment range, wider compatibility;
(12) Simultaneous dissolution12Branch water sample;
TECHNICAL INDEX:
Measuring Item |
COD |
Ammonia nitrogen |
total phosphorus |
total nitrogen |
|
Measurement range |
2-10000 mg/L (segmented) |
0.02-60mg/L |
0.02-20mg/L |
0.05-100mg/L (over range dilution) |
|
measuring accuracy |
COD<50mg/L,≤±10% COD>50mg/L,≤± 5% |
≤±10% |
≤±5% |
≤±5% |
|
Minimum detection limit |
0.1mg/L |
0.01mg/L |
0.01mg/L |
0.01mg/L |
|
Measurement time |
20 minutes |
10-15 minutes |
35-50 minutes |
70~80minute |
|
Batch processing volume |
12 water samples |
12 water samples |
12 water samples |
12 water samples |
|
Repeatability |
≤±5% |
≤±5% |
≤±5% |
≤±5% |
|
Light source lifespan |
100000 hours |
||||
Optical stability |
≤ 0.001A/10 minutes |
≤ 0.001A/10 minutes |
≤ 0.001A/10 minutes |
≤ 0.001A/10 minutes |
|
Anti chlorine interference |
[Cl-]﹤1000mg/Lno effect [Cl-]﹤4000mg/L(optional) |
─ |
─ |
─ |
|
Colorimetric method |
Colorimetric dish |
Colorimetric dish |
Colorimetric dish |
Colorimetric dish |
|
Store data |
10 thousand |
||||
Number of curves |
400 items |
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Display mode |
LCD screen |
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Power supply mode |
220V AC power supply |
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Dissolving temperature |
165℃±0.5℃ |
─ |
120℃±0.5℃ |
121℃±0.5℃ |
|
digestion time |
10 minutes |
─ |
30 Minutes |
40 minutes |