Dissolved oxygen water quality online analyzer

NegotiableUpdate on 05/07

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The dissolved oxygen water quality online analyzer is based on fluorescence quenching method to detect dissolved oxygen concentration, which complies with the "Technical Requirements for Dissolved Oxygen (DO) Water Quality Automatic Analyzer" (HJ/T 99-2003) and the "Technical Requirements and Testing Methods for Portable Dissolved Oxygen Testers" HJ925-2017. It has a red reference light path and can measure dissolved oxygen concentration based on fluorescence signal phase shift. It has the advantages of fast response speed, high sensitivity, good stability, and long calibration cycle. The shell is made of corrosion-resistant stainless steel material and has an IP68 waterproof rating. The controller has functions such as real-time measurement, calibration, fault diagnosis, alarm, linkage control, and communication.

Product Details

1、 Product Overview

Dissolved oxygen water quality online analyzerBased on fluorescence quenching method to detect dissolved oxygen concentration, it meets the technical requirements of "dissolved oxygen (DO) water quality automatic analyzer" (HJ/T 99-2003) and "portable dissolved oxygen analyzer technical requirements and detection methods" HJ925-2017. It has a red reference light path and can measure dissolved oxygen concentration based on fluorescence signal phase shift. It has the advantages of fast response speed, high sensitivity, good stability, and long calibration cycle. The shell is made of corrosion-resistant stainless steel material and has an IP68 waterproof rating. The controller has functions such as real-time measurement, calibration, fault diagnosis, alarm, linkage control, and communication. Adopting an IP66 protection level polymer material shell and a 4-inch graphic screen as the human-machine interface, the hardware interface is rich, with 3 relays, 2 4-20mA outputs and 1 RS485 communication interface. It runs the standard MODBUS protocol and can easily communicate with PLC, RTU or central control system. Suitable for online monitoring of dissolved oxygen content in surface water monitoring, municipal water treatment, biopharmaceuticals, industrial processes, and food processing industries.

溶解氧水质在线分析仪

IIDissolved oxygen water quality online analyzerProduct Features

• Plug and play sensor

• Fast response speed, response time ≤ 10 seconds; high sensitivity

• High sensitivity, detection limit as low as 0.05mg/L

• Good long-term stability and low maintenance workload

• Automatic compensation for temperature, air pressure, and salinity

• Direct calibration in the air, easy to calibrate

• Fluorescent film cap can be replaced

• Factory pre calibration, can restore factory calibration parameters at any time

• The monitor is a 4-inch LED backlit graphic screen with adjustable brightness

• 5 physical buttons complete functions such as measurement, calibration, diagnosis, linkage, and communication

• 3-channel relay with high alarm, low alarm, and timing functions, capable of controlling various peripheral devices such as fans, dosing machines, cleaning machines, etc

• 2-channel isolated 4-20mA output

• 1-way isolated RS485 interface, standard Modbus RTU protocol

• IP66 protection level

3、 Product specifications

detection parameters	Dissolved oxygen, dissolved oxygen saturation
range	Dissolved oxygen: 0-20mg/L; Saturation: 0-200%
repeatability error	≤.1mg/L
zero drift	≤.1mg/L
range drift	≤.2mg/L
response time	≤ 60 seconds
Temperature compensation accuracy	±0.3mg/L
display screen	4-inch 240 * 128 graphic screen, LED backlight, adjustable brightness
keyboard	Five physical buttons: menu, confirm, move, move up, move down, etc
Calibration function	Zero point calibration, single point calibration, or air calibration
shell	ABS+316L+POM
Protection level	IP66
Operating Temperature	0℃-60℃
working power supply	90~240VAC
relay	3-channel relay (SPST), 220V/1A, can operate in high alarm, low alarm, timing and other modes
4-20mA	2-channel isolated 4-20mA output, 500 ohms, associated measurement values
communication	1-way isolated RS485, standard Modbus RTU protocol