Optical PPB dissolved oxygen sensor

NegotiableUpdate on 01/21

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

PN: 610116 Frog Vision's new generation ppb dissolved oxygen sensor is based on the principle of fluorescence quenching. Blue light is irradiated onto the fluorescent oxygen molecule probe to excite red light. Since oxygen molecules are the quenching agent of the fluorescent probe, they can take away energy. Therefore, the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. The dissolved oxygen sensor calculates the concentration of oxygen molecules by measuring the phase difference between the excited red light and the reference light, and combining it with a temperature compensated 3D calibration data model.

Product Details

Advantages and Characteristics:

Intelligent sensor, all calibration parameters are stored inside the sensor, plug and play.
Optical technology does not require frequent replacement of membranes or replenishment of electrolyte solutions.
No preheating required, fast response speed, 30 second response (T90).
The measurement process does not consume oxygen.
PTFE support material, resistant to certain solvents, with small drift and easy storage.
Our self-developed membrane, oxygen probe, and key components are all controllable.
RS485 digital output, supporting Modbus protocol.
SS316，PVC， All titanium alloy shell, with multiple options available.

name	parameter
measurement method	Fluorescence quenching method
measurement range	0-2000ppb (dissolved oxygen)
resolution	0.1ppb
precision	± 1 ppb or 3% reading, whichever is greater
repetitiveness	± 0.5ppb or 1.5% reading, whichever is higher, for 24 hours
Sample temperature range	0~45℃
detection limit	0.8ppb
calibration	1 point calibration (zero point), in 99.999% nitrogen gas
Using water depth/pressure	1-20bar (absolute pressure)
power supply	5-12V 25mA (normal)
output	RS485, Modbus RTU protocol
material	Titanium alloy (optional), SS316 (default), PVC
size	141.9mm in length (excluding cable connectors), with an outer diameter of 27mm
CIP cleaning	support
response time	30 seconds T90 (in gas), 150 seconds T90 (in liquid), anaerobic to aerobic
Service life*	Sensor 2 years or more, sensing membrane 2 years or more
Maintenance and calibration frequency*	Sensor for 6 months

Note: * The lifespan, maintenance, and calibration frequency are for reference only and depend on the actual usage environment.

Optical PPB dissolved oxygen sensor

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