VisoTurb 700IQ German WTW online turbidity sensor

NegotiableUpdate on 05/16

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Instrument: German WTW online turbidity sensor Model: VisoTurb700IQ Measurement principle: Scattered light Brand: German WTW

Product Details

characteristic

·Ultrasonic cleaning technology

·Compliant with EN ISO 7027

·Using precision optical components

·The optical lens is made of wear-resistant sapphire

·Electrode self checking function, good long-term stability

·Strictly and accurately calibrated before leaving the factory

·No wear parts

·Maintenance Province

Turbidity and suspended solids are two important indicators for water quality monitoring. Online testing of turbidity and suspended solids usually uses infrared light scattering method, which is mainly used in surface water, aeration tanks, tap water, circulating water, sewage treatment plants, sludge reflux control, and discharge monitoring.

New turbidity and suspended solids probe

VisoTurbandViSolidThe successful launch of the probe has been announcedWTWTruly possessing their own optical sensors, namely turbidity and suspended solids probes. These probes are all

Germany WTWturbidityMeasuring instrument VisoTurb700Using scattered light ratiocolourLaw, in compliance withENISO 7027Standard regulations，The testing range is very wide, turbidityMeasuring instrument VisoTurb700follow0 to 4000FNU，Equipped with automaticSwitch range function to achieve resolution.Turbidity meter VisoTurb700Equipped with ultrasonic cleaning components to ensure the probe can operate reliably for a long time, requiring only maintenance.Turbidity meter VisoTurb700Before leaving the factory, it undergoes strict multi-point testing and does not require calibration for on-site use.

Principle of turbidity testing

Turbidity is caused by suspended particles in water, which diffuse and reflect back into the incident light. Typically, this is achieved through90The scattered light in that direction is used as the test signal, and the unit measured in this way is calledNTU. UseFormazinThe unit measured by the instrument after calibration with standard solution is calledFNUThis method is suitable for testing low to medium ranges, from0.01arrive4000 FNUThe scope. according toEN27027andISO7027Standard, adopted860nmInfrared light, as a light source, is not affected by the chromaticity of the sample.

Ultrasonic automatic cleaning system

sensorThere is an ultrasonic generator on top, as long assensorWhen connected to the system, high-frequency ultrasonic signals are generated, causing the optical lens to vibrate continuously with an amplitude of several micrometers. In the center of the lens, the amplitude. This can prevent any form of pollutants from accumulating on the lens, ensuring continuous and reliable operation. Some calcium salts will still adhere to the probe over time, forming dirt that is difficult to remove even with a brush or other cleaning agents, and can only be removed by acid washing. Ultrasonic vibration can also prevent bubbles from accumulating in the testing area and interfering with the test, as bubbles also scatter some light.

Low turbidity (especially<1NTU）Pipeline installation

Technical Parameter

unit	FNU; NTU; TEF	mg/l SiO₂; ppm SiO₂	g/l TS
Test range	0.05 … 4000 FNU	0.1 … 4000 mg/l SiO₂	0.001 … 400 g/l TS
light source	860 nm
measuring principle	The scattered light testing process conforms toEN ISO 7027 DIN EN 7027perhapsISO 7027standard
Typical applications	Discharge outlets for drinking water, surface water, and sewage treatment plants(SS<3g/l)
correct	Original factory useFormazincalibration	Original factory useSiO2calibration	User self calibration
accuracy	<1%(Range up to2000 FNU), in accordance withDIN 38402 part 51standard
repeatability	< 0,015 %perhaps≥ 0,006 FNU, in accordance withDIN ISO 5725or DIN 1319
resolution	Measurement unit	measuring range	resolution
	FNU, NTU, TEF	0 .. 0.400 0 .. 4.00 0 .. 40.0 0 .. 400 0 .. 4000	0.001 0.01 0.1 1 1
	mg/l SiO2, ppm SiO2	0 .. 0.400 0 .. 4.00 0 .. 40.0 0 .. 400 0 .. 4000	0.001 0.01 0.1 1 1
	TS	0 .. 0.400 mg/l 0 .. 4.00 mg/l 0 .. 40.0 mg/l 0 .. 400 mg/l 0 .. 4.00 g/l 0 .. 40.0 g/l 0 .. 400 g/l	0.001 mg/l 0.01 mg/l 0.1 mg/l 1 mg/l 0.01 g/l 0.1 g/l 1 g/l
Cleaning system	Ultrasonic cleaning system
SensCheck	The electrode self diagnostic function outputs an alarm signal when the surface of the optical lens is contaminated or the cleaning system has a malfunction
Surrounding environment	Working temperature:0 … 60℃，Ultrasonic cleaning system:0 … 40 °C (Overheat protection) ，Storage temperature:-5 … 65℃ Note:When the temperature of the test medium exceeds40°CThe ultrasonic cleaning system of the electrode will automatically shut down when the temperature drops to40°CWhen the following occurs, the system automatically restarts. This function can prevent electrode overheating, such as when the electrode immersion depth is not met.
Mechanical Construction	Optical lens: Sapphire；Electrode body:V4Astainless steel1.4571；Protection level:IP68
pressure resistance	maximum10Ba (including sensor connection cable)
Insertion depth	minimum7cm, the largest15m
power consumption	1.5 W
size	365×40 mm(Long)×Diameter),withoutincludeIQcableSACIQ
weight	make an appointment990 g

Ordering Information
model	describe	order No
VisoTurb ® 700 IQ	IQTurbidity sensor, built-in ultrasonic cleaning function, cable purchased separately	600010
VisoTurb ® 700 IQ SW	Resistant to seawater corrosionIQTurbidity sensor, built-in ultrasonic cleaning function, cable purchased separately	600011