The Signet 4150 Turbidimeter system provides accurate and reliable compliant water quality monitoring for municipal and industrial applications.

  • Ultrasonic cleaning option insures long and steady on-line measurement
  • Compatibility: 8058 i-Go Signal Converter
  • EPA compliant per U.S. EPA 180.1 or ISO 7027
  • Programmable 4-20 mA output•Simple and easy one-unit installation with built-in pressure regulator
  • Easy access for wiring and maintenance
The Signet 4150 Turbidimeter system provides accurate and reliable EPA-compliant water quality monitoring for municipal and industrial applications. The 4150 measures turbidity via a 90 degree light which reflects particles as they flow through the small volume, low flow glass cuvette. Air bubbles are eliminated in the cuvette by adjusting the backpressure valve on the outlet tube. The cuvette is located in a watertight dark chamber for continuously accurate on-line measurement. A replaceable desiccant pack provides stable environment to ensure reliable measurements. Simple and fast calibration can be accomplished in under five minutes by placing the glass cuvette from the measuring chamber into the cuvette holder, while the inlet and outlet tubing is still connected. The inexpensive calibration standard allows for dry and multiple system calibrations without mixing chemicals. After calibration, the unit is up and running with a simple insertion of the glass cuvette into the measuring chamber. The 4150 is available in two measuring ranges. The 0 to 100 NTU/FNU version is for low range applications such as drinking water. The 0 to 1000 NTU/FNU range can be used for various applications including raw water and wastewater.
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Item Name

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N/A 159001596 White Light, 0 to 1000 MTU/FNU, no self cleaning US EPA 180.1 $2,544.11 Add To Cart
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N/A 159001597 Infrared 0 to 1000 MTU/FNU, no self cleaning ISO 7027 $2,897.47 Add To Cart
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N/A 159001598 White Light 0 to 1000 MTU/FNU, w/ultrasonic auto self cleaning US EPA 180.1 $2,968.13 Add To Cart
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N/A 159001599 Infrared 0 to 1000 MTU/FNU, w/ultrasonic auto self cleaning ISO 7027 $3,321.48 Add To Cart
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N/A 159001600 White Light 0 to 1000 MTU/FNU, w/ultrasonic auto self cleaning US EPA 180.1 $3,674.83 Add To Cart
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N/A 159001601 Infrared 0 to 1000 MTU/FNU, w/ultrasonic auto self cleaning IS 7027 $4,028.18 Add To Cart
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N/A 159001585 Calibration kit turbidity, 100,10 & 0.02 NTU/FNU $409.62 Add To Cart
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N/A 159001586 Calibration kit turbidity, 1000,10 & 0.02 NTU/FNU $409.62 Add To Cart
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N/A 159001588 Replacement desiccant $64.13 Add To Cart
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N/A 159001591 Formazin stock kit $509.08 Add To Cart
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N/A 159001592 Formazin stock solution, 4000 NTU/FNU 500 ml $70.68 Add To Cart
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N/A 159001602 Replacement cuvette set (3 glass cuvettes) $68.05 Add To Cart
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N/A 159001589 Replacement cuvette with ultrasonic transducer $303.62 Add To Cart
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N/A 159001723 24 volt power supply QUOTE Add To Cart
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N/A 159001652 O-Ring kit for cuvette QUOTE Add To Cart
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N/A 159001593 24 Pressure Regulator $226.41 Add To Cart
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N/A 159001587 Stilling / bubble chamber $819.25 Add To Cart
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N/A 159001595 Tubing Kit $240.80 Add To Cart
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N/A 159001650 Turbidity Lamp Replacement Kit, White QUOTE Add To Cart
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