RM-8000CODcr Water Quality Online Automatic Monitoring Instrument

1、 CODcr Water Quality Online Automatic Monitoring Instrument Product Introduction 1. Overview of CODcr Water Quality Online Automatic Monitoring Instrument Currently, CODcr Water Quality Online Automatic Monitoring Instrument is mainly used in surface water, sewage, tap water, rainwater, rivers, farmland, enterprise production, environmental inspection and other places. The instrument can automatically complete data monitoring of on-site water sources, and transmit the data to mobile phones, computers, and the internet

1、 CODcr Water Quality Online Automatic Monitoring Instrument Product Introduction

1. Overview of CODcr Water Quality Online Automatic Monitoring Instrument

CODcr water quality online automatic monitoring instrumentAt present, it is mainly used for surface water, sewage, tap water, rainwater, rivers, farmland, enterprise production, environmental inspection and other places. The instrument can automatically complete data monitoring of on-site water sources, and transmit data to various required places such as mobile phones, computers, and the internet. The instrument has the functions of accurate and fast results, environmental protection, automatic continuous monitoring, and data networking.
2. CODcr water quality online automatic monitoring instrumentMethod basis
Determination of Chemical Oxygen Demand for Water Quality - Dichromate Method HJ 354-2019

Chemical Oxygen DemandTechnical Requirements for CODCr Water Quality Automatic Monitoring Instrument HJ/T 377-2007

Online monitoring system for water pollution sources (CODcr)

CODcr water quality online automatic monitoring instrumentPrinciple Overview：
Take a quantitative water sample, add a mixture of potassium dichromate, silver sulfate solution, and concentrated sulfuric acid, and heat it in a digestion tank to 165 ℃ and maintain it for a period of time. During this period, chromium ions act as oxidants and are reduced from VI valence to III valence, changing color. The absorbance corresponds to the content of organic compounds in the sample, and the instrument directly displays the COD of the sample through colorimetric conversion. The main interferent of this method is chloride, which is automatically removed by adding mercuric sulfate to form a complex before digestion.
3. CODcr water quality online automatic monitoring instrumentTypical Applications
Design requirements for monitoring station buildings of polluting enterprises:
Five parameters of water quality (temperature, pH, dissolved oxygen, conductivity, turbidity)
Online analyzer for COD/ammonia nitrogen/total phosphorus/total nitrogen/permanganate/heavy metals, etc
Data acquisition instrument, industrial computer, dynamic control (uploaded to * * * data center)
Water sample collection system, customized water distribution system, fully automatic water quality sampler system, rainfall and dust sampling system
Monitoring station building and supporting facilities, fire protection facilities, lightning protection facilities and other all-weather monitoring systems
IICODcr water quality onlineAutomatic monitoring deviceProduct Parameters

Analyze the range	(10-200) mg/L, (10-400) mg/L, (10-1500) mg/L (expandable range)
detection limit	3mg/L (low range), 22mg/L (high range)
resolution	＜1.0mg/L
Indication error	±10.0%
repetitiveness	≤5.0%
Span Drift	±10.0%F.S.
dissolution temperature	165 ℃ (adjustable)
Duration of resolution	15 minutes (adjustable)
analysis method	The whole point	Running by the hour, 24 sets per day
	Interval	Run at set intervals
	automatic	automatic analysis
	long-range	Remote control through MODBUS mode; Dry contact control
Calibration method	interval count	Perform interval calibration based on the cumulative number of analyses
	days interval	Calibrate the interval based on the number of running days
	Manual/Automatic	Manual calibration/automatic calibration
	long-range	Remote control via MODBUS
Cleaning Method	automatic	Analysis and cleaning; Fault cleaning; Abnormal power outage cleaning; Emergency stop cleaning
	hand manual	manual cleaning
call the police	Liquid shortage alarm; Self checking alarm; Fault alarm; Over limit alarm (one relay)
data	A 4-20mA analog signal
Communication	An RS232 or RS485 interface standard MODBUS protocol
Storage	About 20000 sets (automatically saved upon power failure); Support exporting EXCEL from USB drive;
Print	Micro industrial thermal printer (optional)
Maintenance Cycle	About 30 days, it takes 45 minutes
display unit	7-inch LCD, 800 * 480 resolution, TFT true color touch screen
Usage environment	5-35 ℃, humidity<90% (no condensation)
Water sample temperature	5—35℃
Interference	Chloride ion (<1000mg/L), turbidity (<60mg/L)
Water collection unit	Used for the circulation and retention of water samples; Automatic Backwash Precision Filtration System (Optional)
Size	420mmx420mm x1370mm (L x W x H)
weight	45KG (including reagent cabinet)
power supply	AC 220V ± 10%, 50Hz ± 1%
power	150W

2、 CODcr water quality online automatic monitoring instrumentProduct Features
1The main components of the instrument are imported to ensure its accuracy, stability, and reliability;
2. Infrared unit, accurate quantification, capable of completing quantitative calculations multiple times;
3. Adopting positive/negative pressure current carrying technology, the peristaltic pump tube does not pass through liquid and is stable and durable.
4. Three point automatic calibration with high linear correlation;
5. Dedicated LED light source, high signal-to-noise ratio;
6. RS232/RS485 interface, standard MODBUS protocol, can remotely read the operating status and related data of the instrument;
IIICODcr water quality online automatic monitoring instrumentservice

Instrument purchase process; Notify requirements, confirm on-site environment, provide instrument scheme design, sign contract, deliver goods, install and construct, provide on-site training, provide reagent configuration methods (customers can purchase and configure by themselves), transfer materials, and complete networking proceduresThe warranty period for the entire instrument is 12 months. If there are any quality problems with the instrument during the warranty period, free replacement, repair, and technical support will be provided.
The manufacturer provides maintenance services for the products sold;
1. Consumables are sourced from * * standard parts, with reasonable and transparent prices;
2. Formula disclosure, provision of reagent and standard solution preparation services, reagents using AR analytical purity, * * * drug quality;
3. Exclusive application solutions, on-site optimized design;
4. After sales technical support;