Home | Sensors&Transmitters| Water Quality Sensors

Nephelometric Turbidity & Temperature Sensor - NTU

Mouse over image to zoom

• Measurement principle: Diffusion IR at 90°
• Range: 0-4000 NTU or 0-4500 mg/L
• Resolution: 0,01 to 1 NTU - mg/L
• Accuracy: < 5% of the reading
• Temperature compensation: via CTN
• Operating temperature: -10°C to + 60°C
• Signal interface: Modbus RS-485 (standard) and SDI-12 (option)
• Sensor power-supply: 5 to 12 volts

Model Number: NTU
Data Sheet:

Quantity:: - +

Inquire Now Add to cart

Product Specification

NTU Nephelometric Turbidity & Temperature Sensor Optical technology :
The measure principle is based on IR nephelometry / 880 nm (ISO 7027). The sensor can be calibrated with a formazine standard solution.

The NTU sensor integrates a low-cost optical technology, with a very few maintenance and no consumables.

NTU Nephelometric Turbidity & Temperature Sensor Digitally optimised measurement technology
• IR optical sensor with optical fibre
• Range: 0-4000 NTU or 0-4500 mg/L
• Digital sensor: Modbus RS-485
• ISO 7027 compliant
• Robust and waterproof

NTU Nephelometric Turbidity & Temperature Sensor Applications
• Industrial effluent treatment
• Urban waste water treatment
• Surface water monitoring
• Drinking water
• Sanitation network

NTU Nephelometric Turbidity & Temperature Sensor Specifications

Measurement
Measurement principle	Diffusion IR at 90°
Measured ranges	0 to 4000 NTU in 5 ranges: 0 - 50 NTU, 0 - 200 NTU, 0 - 1000 NTU, 0 - 4000 NTU, 0 to 4500 mg/L. Calibration: Range 0-500 mg/L according to NF EN 872 Range >500 mg/L according to NF T 90 105 2 AUTOMATIC
Resolution	0,01 to 1 NTU - mg/L
Accuracy	< 5% of the reading
Temperature compensation	via CTN
Operating temperature	-10°C to + 60°C
Signal interface	Modbus RS-485 (standard) and SDI-12 (option)
Maximum refreshing time	< 1 second
Sensor power-supply	5 to 12 volts
Electric consumption	Standby: 40 μA, Average RS485 (1 measure/second): 820 μA, Average SDI12 (1 measure/second) : 4.2 mA
Sensor
Dimensions	Diameter: 27 mm; length: 170 mm
Weight	300 g (sensor + cable 3 metres)
Material	PVC, Quartz, PMMA, Nickel-plated brass
Maximum pressure	5 bars
Connection	9 armoured connectors, polyurethane jacket, bare-wires or waterproof Fisher
Degree of protection	IB68 up to gland