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Surface Scattering Light Turbidity Analyzer TB750G

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

Developed based on years of experience and applications in process fields, the TB750G turbidity analyzer using right angle light scattering method provides highly reliable measurement and improved maintainability which improve upon what previous models could offer. A wide range of options are available to meet users' various needs.

  • Highly reliable measurement with excellent linearity and repeatability.
  • Easy-to-clean cell.
  • Compact, lightweight converter and detector.
  • User configurable measuring range: 0-0.2 NTU to 0-100 NTU.
  • Measuring range switching (2 or 3 ranges).
  • Enhanced self-diagnostic function as standard.
  • Detector structure to remove sudden reading change caused by bubbles.
  • A wide range of measurement conditions.
  • 2 analog outputs, 3 relay contact outputs, and 1 serial communication.

Application

  • Turbidity of finished water and water used in general processes
Measuring method Right angle scattered light method
Measuring range 0.000 to 100.0 NTU
Output range Configurable within the measuring range
Minimum range: 0 to 0.2 NTU
Maximum range: 0 to 100 NTU
Minimum span: 20 % or more of upper limit of the range or 0.2 NTU, whichever is greater.
Analog output 2 outputs:
output 1: 4 to 20 mA DC, isolated
output 2: 4 to 20 mA DC or 0 to 20 mA DC, selectable, isolated (Maximum load resistance 550 Ω)
Serial communication 1 output, RS-422 or RS-232C, isolated
Contact output 3 contacts
Contact input 2 contacts
Calibration Zero/span calibration
Ambient temperature -5 to 50℃ (Sample and tap water may need protection against freezing)
Ambient humidity 5 to 95 % RH (non-condensing)
Sample water conditions Flow rate: 0.05 to 20 l/min
Temperature: 0 to 50℃
Pressure: 500 kPa max.
Power supply 100 to 240 V AC -15 %/+10 %, 50/60 Hz
Power consumption Converter + Detector: 50 VA max.

Performance (under normal operating conditions

Repeatability ±1 % of reading or ±0.002 NTU, whichever is greater
Linearity ±2 % of reading or ±0.01 NTU, whichever is greater
Response time Within 2 minutes (90 % response, sample water flow rate 3 l/min)

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