Portable Water Treatment Chemical Oxygen Demand Meter Sensor Set

Model NO.: LH-C3
Accuracy: ±5%
Test Method: Rapid Digestion Spectrophotometry
Working Condition: 0-50ºC , Rh:0-80%
Battery Life: More Than 30 Hours
Trademark: LOHAND
Transport Package: 1 Set / Carton
Specification: 90mm*70mm*125mm
Origin: China
HS Code: 90258000
Model NO.: LH-C3
Accuracy: ±5%
Test Method: Rapid Digestion Spectrophotometry
Working Condition: 0-50ºC , Rh:0-80%
Battery Life: More Than 30 Hours
Trademark: LOHAND
Transport Package: 1 Set / Carton
Specification: 90mm*70mm*125mm
Origin: China
HS Code: 90258000
Introduction

Name:Portable water treatment chemical oxygen demand meter sensor set

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 .
Portable Water Treatment Chemical Oxygen Demand Meter Sensor SetPortable Water Treatment Chemical Oxygen Demand Meter Sensor SetPortable Water Treatment Chemical Oxygen Demand Meter Sensor Set


Attention :
1.Any liquid or foreign substance entering the inspection chamber may damage the instrument.
2.If the concentration of water samples exceeds the range of the instrument, please dilute the water sample and measure again. The measured value multiplied by the dilution times is the concentration of water sample.
3.There should be no stains, scratches, dust or fingerprints on the surface of the test tube.
Battery requirements: Please use 1.5V AA alkaline batteries.

Parameter
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

Operation processes
COD test
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:
 o-150mg/L(c11) 		COD :
100-1500mg/L(c12) 		COD:
1000-15000mg/L(c13) 		 
  1.take 2ml distilled water into a LR reagent tube(ZERO setting)
2.take 2ml water sample into another LR reagent tube. 		1.take 2ml distilled water into a HR reagent tube(ZERO setting)
2.take 2ml water sample into another HR reagent tube. 		1.take 2ml distilled water into a HR reagent tube(ZERO 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
 
TOTAL PHOSPHORUS TEST  
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)  
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.  

AMMONIA NITROGEN TEST 
 
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.  
5 Take 10ml (scale line) tested water sample to the cell.  
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" to turn off the meter.Then clean the cell.  

Attention:

1.The activator is irritating,wash immediately with plenty of water if touched with the skin.
2.This meter can not test the COD/Total phosphorus/Ammonia nitrogen at same time.
 
Note:
      1.15ºC-25ºC is the best temperature for ammonia nitrogen test. It won't influence test result if  
      Little reagents undissolved.
       2.Any solution or foreign matter inside the detection chamber,may damage the meter.
       3.If the concentration of water sample higher than the test range,please choose high test range for testing,or tested after diluted by distilled water,the test result should multiply by the dilution ratio.  
       4.The surface of test tube should avoid waterlogging,scratch,dust, fingerprint and so on.
       5.Take action to the sequence and numbers of  activator adding.
       6.The reagent bag is easy to tear.
       7.The sucker of pipette can not be used crossly.
       8.It is normal if there have precipitate in the COD reagent tube.
       9.The meter should be placed on the table,it can not be tilt or shake violently when testing in other place.   
 
 


Our Company
Hangzhou Lohand Biological Co.,Ltd is a professional company that manufactures and exports laboratory instruments and equipments.We have our own registered brand"LOHAND" and own factory,with strong R&D center,sales team,customer service team and QC team,which grows very fast and obtains good reputation in the markt.
Most of the products have CE certificate.All products can be customized according to buyers' special requirements.

Portable Water Treatment Chemical Oxygen Demand Meter Sensor Set

Certification   
Portable Water Treatment Chemical Oxygen Demand Meter Sensor Set

FAQ
Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.

Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.

Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.

Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.

Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.

Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product. Introduction

Name:Portable water treatment chemical oxygen demand meter sensor set

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 .
Portable Water Treatment Chemical Oxygen Demand Meter Sensor SetPortable Water Treatment Chemical Oxygen Demand Meter Sensor SetPortable Water Treatment Chemical Oxygen Demand Meter Sensor Set


Attention :
1.Any liquid or foreign substance entering the inspection chamber may damage the instrument.
2.If the concentration of water samples exceeds the range of the instrument, please dilute the water sample and measure again. The measured value multiplied by the dilution times is the concentration of water sample.
3.There should be no stains, scratches, dust or fingerprints on the surface of the test tube.
Battery requirements: Please use 1.5V AA alkaline batteries.

Parameter
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

Operation processes
COD test
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:
 o-150mg/L(c11) 		COD :
100-1500mg/L(c12) 		COD:
1000-15000mg/L(c13) 		 
  1.take 2ml distilled water into a LR reagent tube(ZERO setting)
2.take 2ml water sample into another LR reagent tube. 		1.take 2ml distilled water into a HR reagent tube(ZERO setting)
2.take 2ml water sample into another HR reagent tube. 		1.take 2ml distilled water into a HR reagent tube(ZERO 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
 
TOTAL PHOSPHORUS TEST  
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)  
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
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