Name:lab cod total P ammonia nitrogen test tube heater digester equipment instrument analyzer
Model LH-C3 mini intelligent COD detection meter ,is a new generation COD meter which is promoted by ourself Hangzhou Lohand Biological Co., Ltd in 2017.It solves the problem that when people detect outside without electricity power. It is suitable for test chemical oxygen demand(COD) ,total phosphorus ,ammonia nitrogen of surface water,underground water domestic sewage and industrial waste water .measuring range | 0-15000mg/L(COD) 0.00-50.00mg/L(ammonia nitrogen) 0.00-20.00mg/L(total phosphorus) |
light source | LED |
wavelength | 450nm/520nm/610nm |
accuracy | ±5% |
test method | Rapid digestion spectrophotometry |
working condition | 0-50ºC , Rh:0-80% |
battery life | battery life |
test item | COD, Total phosphorus,Ammonia nitrogen |
Steps | Operation processes | Description | ||
1 | Estimate the COD value of the water sample  | |||
2 | Choose the reagent and add the tested water sample according to the corresponding range. | |||
 |
COD: Â o-150mg/L(c11) |
COD : 100-1500mg/L(c12) |
COD: 1000-15000mg/L(c13) |
 |
 |
1.take 2ml distilled water into a LR reagent tube(ZEROÂ setting) 2.take 2ml water sample into another LR reagent tube. |
1.take 2ml distilled water into a HR reagent tube(ZEROÂ setting) 2.take 2ml water sample into another HR reagent tube. |
1.take 2ml distilled water into a HR reagent tube(ZEROÂ setting) 2. take 1.8ml distilled water into another HR reagent tube ,then add 0.2ml water sample. |
★Note:C12 and C13 can use the same one zero setting tube.  ★Danger:There have concentrated sulfuric acid in the test tube,please wear gloves to operate. |
3 | Tighten the reagent tube cap , shake well and put into the reactor, heat for 20 minutes at 165  ºC. |
★Caution: Hot  |
||
4 | After reaction, take out the reagent tube , when cooled to 80 ºC shake reagent tube again. |  | ||
5 | Place the reagent tube on the tube rack and continue to cool to room temperature. This procedure prevents the reagent tube from shaking. | ★Note:The suspended matter needs to be completely precipitated | ||
6 | Press "(ON/OFF)" button to turn on the meter, press "(SWITCH)" button to select the required test item. |  | ||
7 | Open the detection cap,put it into the zero water sample reagent tube, cover the cap, press the "(ZERO)" button to zero setting. | ★The tube wall should be cleaned. | ||
8 | Take out the zero water sample reagent tube, put in the water sample reagent tube and cover the cap. | ★Under the c13 , when displayed as XXX   mg/L, the detection value is XXX00mg/L. | ||
9 | Press  "(READ)"button.The digits showed in the screen is the value of tested sample. | |||
10 | Press  "(ON/OFF)" button to turn off the meter |
Steps | Operation processes | Description | |
1 | Estimate the total phosphorus value of the water sample  | ||
2 | Choose the reagent and add the tested water sample according to the corresponding range. | ||
Total phosphorus: 0-2mg/L(L22) | Total phosphorus:2-2mg/L(L23) | Â | |
1.take 5ml distilled water into an empty reagent tube(ZERO) 2.take 5ml water sample into another empty reagent tube. |
1.take 5ml distilled water into an empty reagent tube(ZERO) 2.take 0.5ml  water sample and 4.5ml distilled water into another empty reagent tube. |
★L22 and L23 can use the same zero reagent tube.  |
|
3 | Add 1 pack reagent 1 to each reagent tube, tighten the cap, shake it up and down for 5 seconds. | ★The reagents doesn't need to be dissolved  totally | |
4 | Put the reagent tube into the reactor, heat for 15 minutes at 150  ºC. |  | |
5 | After reaction, take out the reagent tube , when cooled to around 80 ºC shake reagent tube again. |
★Cool 2-3 min  |
|
6 | Press "(ON/OFF)" button to turn on the meter, press "(SWITCH)" button to select the required test item. |  | |
7 | Open the zero water sample reagent tube, add 1 package reagent 2, shake well, add 7 drops of activator P, shake 5 seconds, put it in the meter, press "(ZERO)" ,the meter will start 1 minute countdown,zero auto setting when countdown finished. Take out the zero water sample reagent tube. | ★The tube wall should be cleaned | |
8 | Open the water sample reagent tube, add 1 package reagent 2, shake well until it dissolved totally, add 7 drops activator P, shaking 5 seconds, put it in the meter, press "(READ)",and the meter will be automatically detected after 1 minute countdown. |  |
Steps | Operation processes | Description |
1 | Press  "ON/OFF" button to turn on the meter ,  press "SWITCH" button to select the required test item. |
★Take out the sleeve from the meter ★The marked place face the operator |
2 | Take 10ml distilled water and inject it into the mark line of cell,cover the cap,clean the surface of the cell,then put it into the detection chamber,cover the cap. | |
3 | Press "ZERO". It done if shows the "0.00" on the screen. | ★The tube wall should be cleaned |
4 | Pour out the pure water and take a small amount of tested water samples ,wash the cell. Pour out the wet liquid. | Â |
5 | Take 10ml (scale line) tested water sample to the cell. | Â |
6 | Add 6 drops of activator A1, shake well, add 6 drops of activator B2 and shake well. Put the cell in the detection chamber, press "()READ" , and the meter will be automatically detected after 3 minutes countdown. | ★environment temperature:15ºC-25ºC |
7 | Press" ON/OFF"Â to turn off the meter.Then clean the cell. | Â |
Name:lab cod total P ammonia nitrogen test tube heater digester equipment instrument analyzer
Model LH-C3 mini intelligent COD detection meter ,is a new generation COD meter which is promoted by ourself Hangzhou Lohand Biological Co., Ltd in 2017.It solves the problem that when people detect outside without electricity power. It is suitable for test chemical oxygen demand(COD) ,total phosphorus ,ammonia nitrogen of surface water,underground water domestic sewage and industrial waste water .measuring range | 0-15000mg/L(COD) 0.00-50.00mg/L(ammonia nitrogen) 0.00-20.00mg/L(total phosphorus) |
light source | LED |
wavelength | 450nm/520nm/610nm |
accuracy | ±5% |
test method | Rapid digestion spectrophotometry |
working condition | 0-50ºC , Rh:0-80% |
battery life | battery life |
test item | COD, Total phosphorus,Ammonia nitrogen |
Steps | Operation processes | Description | ||
1 | Estimate the COD value of the water sample  | |||
2 | Choose the reagent and add the tested water sample according to the corresponding range. | |||
 |
COD: Â o-150mg/L(c11) |
COD : 100-1500mg/L(c12) |
COD: 1000-15000mg/L(c13) |
 |
 |
1.take 2ml distilled water into a LR reagent tube(ZEROÂ setting) 2.take 2ml water sample into another LR reagent tube. |
1.take 2ml distilled water into a HR reagent tube(ZEROÂ setting) 2.take 2ml water sample into another HR reagent tube. |
1.take 2ml distilled water into a HR reagent tube(ZEROÂ setting) 2. take 1.8ml distilled water into another HR reagent tube ,then add 0.2ml water sample. |
★Note:C12 and C13 can use the same one zero setting tube.  ★Danger:There have concentrated sulfuric acid in the test tube,please wear gloves to operate. |
3 | Tighten the reagent tube cap , shake well and put into the reactor, heat for 20 minutes at 165  ºC. |
★Caution: Hot  |
||
4 | After reaction, take out the reagent tube , when cooled to 80 ºC shake reagent tube again. |  | ||
5 | Place the reagent tube on the tube rack and continue to cool to room temperature. This procedure prevents the reagent tube from shaking. | ★Note:The suspended matter needs to be completely precipitated | ||
6 | Press "(ON/OFF)" button to turn on the meter, press "(SWITCH)" button to select the required test item. |  | ||
7 | Open the detection cap,put it into the zero water sample reagent tube, cover the cap, press the "(ZERO)" button to zero setting. | ★The tube wall should be cleaned. | ||
8 | Take out the zero water sample reagent tube, put in the water sample reagent tube and cover the cap. | ★Under the c13 , when displayed as XXX   mg/L, the detection value is XXX00mg/L. | ||
9 | Press  "(READ)"button.The digits showed in the screen is the value of tested sample. | |||
10 | Press  "(ON/OFF)" button to turn off the meter |
Steps | Operation processes | Description | |
1 | Estimate the total phosphorus value of the water sample  | ||
2 | Choose the reagent and add the tested water sample according to the corresponding range. | ||
Total phosphorus: 0-2mg/L(L22) | Total phosphorus:2-2mg/L(L23) | Â | |
1.take 5ml distilled water into an empty reagent tube(ZERO) 2.take 5ml water sample into another empty reagent tube. |
1.take 5ml distilled water into an empty reagent tube(ZERO) 2.take 0.5ml  water sample and 4.5ml distilled water into another empty reagent tube. |
★L22 and L23 can use the same zero reagent tube.  |
|
3 | Add 1 pack reagent 1 to each reagent tube, tighten the cap, shake it up and down for 5 seconds. | ★The reagents doesn't need to be dissolved  totally | |
4 | Put the reagent tube into the reactor, heat for 15 minutes at 150  ºC. |  | |
5 | After reaction, take out the reagent tube , when cooled to around 80 ºC shake reagent tube again. |
★Cool 2-3 min  |
|
6 | Press "(ON/OFF)" button to turn on the meter, press "(SWITCH)" button to select the required test item. |  | |
7 | Open the zero water sample reagent tube, add 1 package reagent 2, shake well, add 7 drops of activator P, shake 5 seconds, put it in the meter, press "(ZERO)" ,the meter will start 1 minute countdown,zero auto setting when countdown finished. Take out the zero water sample reagent tube. |
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