Standard COD digestion instrument

automatic timing SN-101B-12A

microcrystalCODDissolving reflux apparatus

Note:microcrystalCODDissolving reflux apparatusConfigurableheating temperatureandDissolve reflux time, usingMicrocrystalline glass panel infrared heatingandair cooling+Water cooling condensation methodMeet the requirements of the national standard law.

1Product Introduction

SN-101B-12A Microcrystalline 12 Hole COD Digestion Reflux Analyzermeet the standardHJ828-2017The analysis method is a combination of fan air cooling and static water coolingCODHeating condensation reflux device.

SN-101B-12A Microcrystalline 12 Hole COD Digestion Reflux AnalyzeradoptPIDThe temperature controller controls the heating electric furnace and can set the constant temperature and time. After the temperature is constant, it automatically counts and can heat multiple heating reflux devices simultaneously. By adjusting the heating temperature, the intensity of solution boiling can be controlled.

The instrument adopts a glass burr reflux tube for condensation. The middle of the condensation tube is cooled by a fan, and the top can be filled with static condensation water for condensation. The two condensation methods are used in combination.

2、 System parameters

meet the standardsHJ 828-2017Determination of Chemical Oxygen Demand for Water Quality - Dichromate Method;

Heating method: Contact infrared heating with microcrystalline glass panel;

Condensation method: fan air cooling+Static condensate water cooling;

Measuring range10～700mg/L（＞700mg/LDilution measurement of water sample)；

Temperature regulation range: Temperature range100-400℃adjustable（suggestionin165℃-330℃Between);

Measurement timing: The default setting time for instrument startup is150minute（upper limitset as180minute；

Measurement error: Potassium hydrogen phthalate standard solution（500mg/L）The relative standard deviation is not greater than5%Industrial organic wastewater（500mg/L）The relative standard deviation is not greater than8%；

Number of Dissolved Samples:12a250mlGrinding conical bottle;

Ambient temperature5～40℃；

Rated heating power:2000W；

power supplyAC 220V±22V，50HZ；

3、 Instrument matching