Cod Total Phosphorus Ammonia Nitrogen Measuring Test Equipment Instrumnent

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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: COD Total Phosphorus Ammonia Nitrogen Measuring Test Equipment Instrument

The LH-C3 mini intelligent COD detection meter is a new generation of COD meter introduced by Hangzhou Lohand Biological Co., Ltd in 2017. It addresses the issue of detecting without power supply. This device is suitable for testing chemical oxygen demand (COD), total phosphorus, and ammonia nitrogen in surface water, groundwater, domestic sewage, and industrial wastewater.
Cod Total Phosphorus Ammonia Nitrogen Measuring Test Equipment InstrumnentCod Total Phosphorus Ammonia Nitrogen Measuring Test Equipment InstrumnentCod Total Phosphorus Ammonia Nitrogen Measuring Test Equipment Instrumnent


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 the 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 More than 30 hours
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:
0-150mg/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 zero setting tube.
 
★Danger: There are 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: 2-20mg/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 don'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

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