Right Angle Scattered Light Turbidity Detector TB820D

Providing reliable turbidity measurements in Water Treatment Plants since 1959
No.1 Process analyzer supplier to Japanese market*

"Reduce maintenance"

"Digital solution for water quality"

Many of our customers face these challenges - Yokogawa Turbidity Analyzers resolve them.

Since their sales began in 1959, Yokogawa's turbidity analyzers have been continuously developed and improved using various measurement principles suited for multiple applications. With its many achievements, Yokogawa has earned its customers' confidence.

The TB820D is part of the SENCOM4.0 platform family and can connect to FLXA402T. Thanks to a smart unit equipped detector, TB820D gives you more insight into the ordinary operation.

The TB820D turbidity analyzer using the right-angle light scattering method provides highly reliable measurements and uses LED as a light source.

*Based on a Yokogawa survey in 2019

About OpreX

OpreX is the comprehensive brand for Yokogawa’s industrial automation (IA) and control business and stands for excellence in the related technology and solutions. It consists of categories and families under each category. This product belongs to the OpreX Analyzers family that is aligned under the OpreX Measurement category.

Details

Features

Easy to clean cell structure, Automatic wash system, Long life time light source

  • High reliable measurement with excellent linearity and repeatability
  • Measure wide turbidity range (0-0.2 to 0-700 FNU (Light source 860 nm), 0-0.2 to 0-500 NTU (Light source 660 nm))
  • Longer life time light source by LED
  • Flat window cell structure is designed for small dead volume to prevent dirty retention
  • Diagnostics functions recommend you the appropriate maintenance time
  • Remote wash and calibration functions are available
  • Ultrasonic cleaning is available
  • Automatic 2 or 3 range switching is available
  • Can access all maintenance parts from the front panel
  • Max 20 m cable length is available between TB820D and FLXA402T thanks to digital technology
TB820 flow chamber can be removed for cleaning and replacement

TB820D Dicplay

Application

Turbidity of tap water, sewage, river water and water used in general processes.

Water Purification Treatment

  • Sedimentation 
  • Flocculation 
  • Settling Basins 
  • Clean water reservoir 
  • Distributing pump 
  • Distribution tank & Piping 

Wastewater Treatment 

  • Discharge/Reuse 

Turbidity of tap water, sewage, river water and water used in general processes.

Turbidity Typical System configuration

TB820D System Configuratiom   

 


Related Product

Pulse Generator for Clean Unit PG400

The PG400 supplies pulse to the ultrasonic vibrator and controls the ultrasonic cleaning system.
The PG400 supports an ultrasonic cleaning system for PH8HS, PH8HF, TB820D, and TB750G.

Learn more

PG400

 

Specifications

Measuring method Right angle scattered light method
Measuring Range
(Turbidity standard: Formazin)
0-0.2 to 0-500 NTU (Light source 660 nm)
0-0.2 to 0-700 FNU (Light source 860 nm/ Compliant standard: ISO7027)
Sample Conditions Temperature 0 to 50°C
Flow Rate 0.05 to 20 L/min
Pressure 500 kPa max
Power Supply 100 to 240 V DC, 50/60 Hz
Digital Communication Modbus TCP/IP, Modbus RTU
Installation Indoor (Outdoor use requires protection against rain.Direct sunlight must be avoided.)

 

Performance

Linearity 0-40 NTU : ±2% of reading or ±0.01 NTU whichever is greater
over 40NTU to 100NTU: ±5% of reading
over 100NTU: ±10% of reading
Repeatability 0-100 NTU range: ±1% of reading or ±0.002 TU whichever is greater
over 100 NTU : ±2% of reading
when Check tool is used

Resources

Overview:

SENCOM

Yes, FLXA402T+PG400 supports ultrasonic cleaning for both Turbidity detectors.
Yes, 0.2μm mesh filter and 1.0μm mesh filter for TB820D are same as TB750G. You can select zero turbidity filter in case; Measuring range is 2.0 NTU or greater: 1μm Measuring range is less than 2.0 NTU: 1μm + 0.2μm ...
No, you don’t need to do any adjustment. Just replace light source.
Yes, you can buy flow-cell and glass windows as a spare part.
We strongly recommend using head tank in any case for stable measurement. If your facility has enough pretreatment and there are no bubbles, you can install the TB820D without head tank. D1 pressurized head tank is suitable for under 2 NTU measuremen...
K9411UA and K9726EF consist of filter case and filter element. K9008ZD and K9726EG are only filter element and you can use them in case of filter replacement.
Parts No. Name Remarks QTY Recommended Replacement Period K8003DN LED ASSY (Red Light) For code – NT. RED light source. For red light sources. 1 3 years K8003DP LED ASSY (Infrared Red Li...
FLXA 402T Multi Sensor variation 1st module TB820D FC800D FC800D FC800D FC800D TB820D TB820D 2nd module TB820D FC800D TB820D Analog pH Analog Conductivity Analog pH sensor Analo...
You don't need to do any difficult setting. The FLXA402T configurations have already optimized for selected measurement when it is shipped.
Maximum digit is three decimal points, default is 2 decimal points.
PH4, pH7 and pH9 tables complied by NIST, DIN and US standards are available.
The FLXA402T can connect a pH sensor, but an ORP sensor is not available. For ORP measuring, please select the FLXA402. (Not FLXA402T)
Static conductivity sensor is available. Inductive conductivity sensors are not available. For inductive conductivity sensor measuring, please select the FLXA402. (Not FLXA402T)
Conductivity measuring is available in the FLXA402T. For resistivity measuring, please select the FLXA402. (Not FLXA402T)
Maximum 20m is available. If you want to use more than 20m cable, please contact us.
Yes, you can save and copy the FLXA402T configurations by SD card. It realizes easy installation and replacement.
Within ordered range, you can set the FLXA402T analog output range seamlessly. Cannot change ordered analyzer measurement range.

Downloads

Videos

Overview:

Smart Water Management System providing clean and safe water.
Yokogawa provides total water management system including Turbidity and Free Chlorine measurement.

For more details, visit "www.yokogawa.com/CL-TB/"

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