COD automatic online analyzers CODG-3000

COD Online Analyzer COD online automatic monitor Introduction 1.1 Scope For chemical oxygen demand in the 10-5000 mg / L range, and chloride concentrations lower than 3.5g / L chlorine ions wastewater, according to the actual requirements of the user can be applied to a chloride concentration of less than 20g / L chlorine ions wastewater 1.2, the instrument features? unique design, so that the product compared to similar products with lower failure rate, lower maintenance, lower reagent consumption and more cost-effective and accurate. ? Accurate measurement of photovoltaic systems through visualization, to overcome the quantitative error peristaltic pump tubing caused by wear, to achieve a precise quantification of trace reagents, greatly reducing the amount of reagent use. ? Peristaltic pump vacuum suction, between the reagent and the pump tube pump tube there is always an air buffer, to avoid corrosion of the tubing. ? Peristaltic pump vacuum suction, between the reagent and the pump tube there is always an air buffer, to avoid corrosion and tubing at the pump tube corrosion cracking of the peristaltic pump hardware;? High temperature and high pressure digestion system and accelerate the progress of the reaction to overcome the open system corrosive gases volatile corrosion of the equipment. ? Reagent tubes: The import modified polyvinyl fluoride transparent hose, diameter greater than 1.5 MM reduces the water like particles clogging. COD automatic online analyzer / monitor Features: u ?????? unique design, so that the product compared to similar products with lower failure rate, lower maintenance, lower reagent consumption and higher cost-effective. u ?????? selector valve components: the reagents sampling timing. u ?????? metering components: photovoltaic systems through visualization reagent metering precision to overcome the quantitative error peristaltic pump tubing caused by wear; while enabling accurate quantification of trace amounts of reagents, only 1.5 ml per dose, greatly reducing the amount of reagent used. u ?????? injection components: vacuum suction peristaltic pump, tubing between the reagent and there is always an air buffer, to avoid corrosion of the tubing. u ?????? Sealed Digestion components: high temperature and pressure digestion system, speed up the reaction process, to overcome the open system corrosive gases volatile corrosion of the equipment. u ?????? reagent tubes: The import of modified PTFE transparent hose, diameter greater than 1.5mm, reducing the chance of water-like particles clogging. COD automatic online analyzer / monitor parameters: a method based on: the national standard GB11914-89 "Water quality - Determination of chemical oxygen demand - dichromate." 2 Measuring range: 4-50000 mg / L COD. 3 Accuracy: ≥100mg / L at no more than ± 10%; <100mg / L at no more than ± 8mg / L. 4 Repeatability: ≥100mg / L at no more than ± 10%; <100mg / L at no more than ± 6mg / L. 5 measurement period: The minimum measurement period of 20 minutes, according to the actual water samples, in 5 ~ 120min any modification digestion time. 6 sampling period: the time interval (20 ~ 9999min adjustable), and the whole point of measurement mode. 7 Calibration cycle: 1 to 99 days at any arbitrary time interval is adjustable. 8 Maintenance cycle: Usually once a month, each about 30 min. 9 reagent consumption: less than 0.35 yuan / sample. 10 Output: RS-232; 1-way 4-20mA optional. Optional RS485 interface; modbus protocol. 11 Environmental requirements: indoor temperature adjustable, recommended temperature + 5 ~ 28 ℃; humidity ≤90% (non-condensing). 12 Power: AC230 ± 10% V, 50 ± 10% Hz, 5A. 13 Dimensions: 1500 × width 550 × depth 450mm. 14 Other: abnormal alarm and power without losing data; 15 touch-screen display and command input; abnormal reset and power off the call, the instrument automatically discharge the residual reactants instrument automatically return to work status.