Wastewater online automatic continuous monitoring instrument COD online testing instrument

NegotiableUpdate on 01/22

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Wastewater online automatic continuous monitoring instrument COD online testing instrument $r $n This product is suitable for wastewater with chemical oxygen demand in the range of 10-5000mg/L and chloride concentration below 2.5g/L Cl -. According to customer's actual needs, it can be extended to wastewater with chloride concentration below 20g/L Cl -

Product Details

Wastewater online automatic continuous monitoring instrument COD online testing instrument

COD water quality online automatic monitoring instrument

The online COD analyzer can automatically and continuously work according to on-site settings, and is widely used in industrial pollution source discharge wastewater, industrial process wastewater, industrial sewage treatment plant wastewater, municipal sewage treatment plant wastewater, and other occasions. According to the complexity of the on-site testing conditions, corresponding preprocessing systems can be selected to ensure the reliability of the testing process, accurate testing results, and fully meet the on-site requirements of different occasions.
Principle:
A mixture of water sample, potassium dichromate digestion solution, silver sulfate solution (silver sulfate added as a catalyst can more effectively oxidize linear fatty compounds), and concentrated sulfuric acid is heated to 175 ℃. After the organic matter in the solution is oxidized by dichromate ions, the color will change. The analyzer detects this color change and converts it into COD value output. The amount of dichromate ions consumed is equivalent to the amount of oxidizable organic matter, i.e. COD.

Wastewater online automatic continuous monitoring instrument COD online testing instrument

Technical Specifications:

serial number	Specification Name	Technical specifications and parameters
1	Scope of Application	This product is suitable for wastewater with a chemical oxygen demand ranging from 10 to 5000mg/L and a chloride concentration below 2.5g/L Cl -. Depending on the actual needs of customers, it can be extended to wastewater with a chloride concentration below 20g/L Cl -
2	test method	Potassium dichromate high-temperature digestion, colorimetric determination
3	measurement range	10~5000mg/L
4	detection limit	3
5	resolution	0.1
6	accuracy	± 10% or ± 8mg/L (whichever is greater)
7	repetitiveness	10% or 6mg/L (whichever is greater)
8	zero drift	±5mg/L
9	range drift	±10%
10	measurement period	The small testing cycle is 20 minutes, and the digestion time can be set from 5 to 120 minutes based on the actual water sample
11	sampling period	Time interval (adjustable), hourly or trigger measurement mode, adjustable
12	calibration cycle	Automatic calibration (adjustable from 1 to 99 days), manual calibration can be set according to actual water samples
13	maintenance cycle	The maintenance interval is greater than one month, about 30 minutes each time
15	Human machine operation	Touch screen display and command input
16	Self checking protection	Self diagnosis of instrument working status, data will not be lost after abnormalities or power outages; After abnormal reset or power outage, the instrument automatically eliminates residual reactants and resumes operation automatically
17	data storage	Data storage for no less than six months
18	input interface	discrete signal
19	output interface	2 RS232 digital outputs, 1 4-20mA analog output
20	working environment	For indoor work, it is recommended to maintain a temperature of 5-28 ℃ and a humidity of ≤ 90% (without condensation)
21	Power supply and power consumption	AC230±10%V，50~60Hz，5A
22	size	Height 1500 x Width 550 x Depth 450 (mm)