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The Signet 4150 Turbidimeter provides accurate and reliable EPA-compliant water quality monitoring for municipal and industrial applications.
The 4150 Turbidimeter 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 back pressure valve on the outlet tube. The cuvette is located in a water-tight dark chamber for continuously accurate on-line measurement. A replaceable desiccant pack provides a 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.
Fields of Application:
Monitoring Filter Performance
Raw or Filtered Water
Municipal Water Distribution
Wastewater Reclamation and Tertiary Effluent
Aquatic Life Support
Features:
Simple and easy single unit installation with built-in pressure regulator
Versions compliant with either U.S. EPA 180.1 for North and South America and Asia or ISO 7027 for Europe
Time saving and efficiencies of cuvette technology simplifies calibration
Spannable 4-20 mA output
Two adjustable alarm relays
Bright backlit display
Easy access for wiring and maintenance
Ultrasonic cleaning option insures long and steady on-line measurement
Inexpensive standards allow for multiple system calibrations
Specifications:
GENERAL
Flow Rate Range 0.1 L/min to 1 L/min (0.026 GPM to 0.26 GPM)
Measurement Range 0 to 100.0 NTU/FNU or 0 to 1000.0 NTU/FNU
Accuracy ±2% of reading or ±0.02 NTU/FNU below 40 NTU/FNU whichever is greater
±5% of reading above 40 NTU/FNU NTU = FNU = FTU
Part Number
3-4150 Measurement Range and Self Cleaning Options
-1 White Light, 0 to 1000 NTU/FNU, no self cleaning U.S. EPA 180.1
-2 Infrared, 0 to 1000 NTU/FNU, no self cleaning ISO 7027
-3 White Light, 0 to 100 NTU/FNU, with ultrasonic auto self cleaning U.S. EPA 180.1
-4 Infrared, 0 to 100 NTU/FNU with ultrasonic auto self cleaning ISO 7027
-5 White Light, 0 to 1000 NTU/FNU, with ultrasonic auto self cleaning U.S. EPA 180.1
-6 Infrared, 0 to 1000 NTU/FNU with ultrasonic auto self cleaning ISO 7027
