FDO700IQ Online Fluorescence Dissolved Oxygen Sensor

NegotiableUpdate on 05/16

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Instrument: Online Fluorescence Dissolved Oxygen Sensor Model: FDO700IQ Measurement Principle: Fluorescence Method Brand: WTW, Germany

Product Details

characteristic

One year warranty
Adopting intelligent thin film correction(IQMC)Technology, no need for calibration
C²Light speed correction, high measurement accuracy
Green light technology(GLT)The fluorescent cap has a long lifespan
Equal optical path reference system(EPRS)Stable measurement without drift
45Degree design, not affected by bubbles
Unfilled electrolyte
No minimum flow rate requirement

working principle:

A layer of fluorescent dye is covered on the thin film at the top of the sensor. When a short wavelength light is irradiated onto the fluorescent dye, it emits long wavelength red light when it returns from the excited state to the ground state. The red light is the test signal. The higher the concentration of dissolved oxygen, the shorter the duration of red light. By testing the duration of red light, the concentration of dissolved oxygen can be determined. The first generation of fluorescence based dissolved oxygen sensors had the following drawbacks:

The longer the film is in contact with water, the greater the signal drift
Fluorescent dyes are prone to aging after exposure to blue light
Sensors are more sensitive to bubbles

WTWrely on60Years of manufacturing experience have successfully overcome the above difficulties and launched the second-generation fluorescence based dissolved oxygen sensor. The technological advantages of second-generation sensors are mainly reflected in the following aspects:

IQMCtechnology:Each diaphragm undergoes strict calibration before leaving the factory, and the calibration data is stored in the chip on the diaphragm.
EPRSEqual optical path reference system:The test optical path and reference optical path, as well as the complete symmetry of the optical path system, can synchronously eliminate the influence of optical component aging. Ensure high testing accuracy within the lifespan of the sensor.
GLTGreen light technology:Green light has relatively less energy compared to blue light, which can avoid the fading effect of fluorescent dyes and extend the service life of the film, usually achieving2Years of lifespan.
45Degree testing technology:The top of the sensor does not adopt a flat structure, but has a45The slope of the degree can avoid the accumulation of bubbles, thus solving the problem of the first generation being easily disturbed by bubbles.
C²Light speed correction calibration:The fluorescence method ultimately boils down to the issue of testing time, thereforeWTWThe time testing system is strictly calibrated according to the physical constant of light speed, ensuring accurate time testing.

sensor structure

Storage chip

There is a storage chip on the fluorescent cap of the sensor that can store the following data: fluorescent cap type, serial number, and factory calibration data.

IQMCtechnology

Each fluorescent film undergoes strict calibration before leaving the factory, and the calibration data is permanently stored on a chip to ensure the accuracy of the sensor during use.

Outline dimension diagram

Technical Parameter

model	FDO 700（SW）	FDO 701(SW)
test method	green lightfluorescence
Range(25℃)	O₂concentrated linear measure：0 …20.00 mg/l、O₂saturation：0.0…200.0%
Resolution	O₂concentrated linear measure：0.01 mg/l、O₂saturation：0.1%
measurement accuracy	< 1mg/lWhen is0.05 mg/l、>1mg/lWhen is0.1mg/l
Repeatability	+/- 0.05 mg/l
reaction timeat 25℃	t₉₀<150 s,t₉₅<200 s	t₉₀<60 s,t₉₅<80 s
Minimum flow velocity	No requirements
Electrode inspectionSensor Check	Thin film monitoring function
sensorcorrectrecord	Yes, factory calibration
Power consumption	0.7tile
Temperature test	-5℃…+60℃,built-inNTCprobe
temperature compensation	-5℃…+50℃
Voltage resistance	10hope earnestly(Including sensor cable)
Surrounding environment	work: -5℃…+50℃ keep in storage: -25℃…+50℃	work: -5℃…+40℃ keep in storage: -25℃…+40℃
Connector	2Core shielded wire,IQSpecial connector
Input power supply	IQ Sensor Netpower supply
Lightning protection circuit	have
EMI/RFIprotection	EN 61326, Class B, FCC Class A,
Certification	CE, cETLus
Construction	Film head:POM, PVC, silicone rubber；Electrode body: stainless steel,IP68
Size	400X40 mm SW: 400X59.5 mm
Weight	make an appointment900can SWmake an appointment1500g
Fluorescent cap lifespan*	24Month	6Month
Sensor warranty period	Two years, in compliance§ 10 AGBcondition

Ordering Information
model	describe	order No
FDO ® 700 IQ	Fluorescence dissolved oxygen sensor, sewage detection, including fluorescent capSC-FDO 700	201650
FDO ® 700 IQ SW	Fluorescence dissolved oxygen sensor, seawater detection, including fluorescent capSC-FDO700And protective coverMSK FDO	201652
FDO ® 701 IQ	Fluorescent dissolved oxygen sensor, rapid response type, including fluorescent capSC-FDO701	201660
FDO ® 701 IQ SW	Fluorescent dissolved oxygen sensor, rapid response type, including fluorescent capSC-FDO 701And protective coverMSK FDO	201660
SC-FDO ® seven hundred	Universal fluorescent cap, suitable forFDO 700/ 700SW	201654
SC-FDO ® seven hundred and one	Fluorescent cap with fast response time, suitable forFDO 701/ 701SW	201655
MSK FDO	Protective cover	205253
MSK FDO ® CS	Cleaning equipment and protective coversMSK FDOsimultaneous use	205254

SW: Sea WaterApplication of seawater;SACIQfor a special purposecableOrder separately FDO700IQ online fluorescence dissolved oxygen sensor FDO700IQ online fluorescence dissolved oxygen sensor FDO700IQ online fluorescence dissolved oxygen sensor